Q Series Data Sheet 66 – 132 Watt DC-DC Converters

Q Series Data Sheet 66 – 132 Watt DC-DC Converters
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products are available
• Class I equipment
• Compliant with NFF-16 and EN 45545 (Version V106 or
later)
• Wide input voltage ranges up to 154 VDC
• 1 or 2 isolated outputs from 3.3 to 48 V
• Flexible output power
• Extremely high efficiency of up to 90%
• Excellent surge and transient protection
• Outputs open and short -circuit proof
• Redundant operation, current sharing
• Extremely low inrush current, hot-swappable
• Externally adjustable output voltage and inhibit
• Electric strength test 2.1 kVDC
• Extremly slim case (4 TE, 20 mm), fully enclosed
• Telecoms-compatible input voltage range of 48Q models
according to ETS 300132-2 (38.4 to 75 VDC)
111
4.4"
3U
20
0.8"
4 TE
Safety-approved to IEC/EN 60950-1 and UL/CSA
60950-1 2nd Ed.
164
6.5"
1
1
Description
These extremely compact DC-DC converters incorporate all
necessary input and output filters, signaling and protection
features, which are required in the majority of applications. The
converters provide important advantages such as flexible
output power through primary current limitation, high efficiency,
excellent reliability, very low ripple and RFI noise levels, full
input to output isolation, negligible inrush current, overtemperature protection, and input over-/undervoltage lockout.
The converter inputs are protected against surges and
transients occurring on the source lines.
The converters are particularly suitable for rugged environments, such as railway applications. They have been designed
in accordance with the European railway standards EN 50155
and EN 50121-3-2. All printed circuit boards are coated with a
protective lacquer.
The outputs are continuously open- and short-circuit proof. An
isolated output Power Good signal and LEDs at the front panel
Table of Contents
on request
indicate the status of the converter. Test sockets at the front
panel allow for a check of the main output voltage.
Full system flexibility and n+1 redundant operating mode are
possible due to virtually unrestricted series or parallel connection capabilities of all outputs. In parallel connection of
several converters, automatic current sharing is provided by a
single-wire interconnection.
As a modular power supply or as part of a distributed power
supply system, the extremely low-profile design reduces the
necessary power supply volume without sacrificing high
reliability. A temperature sensor disables the outputs when the
case temperature exceeds the limit. The outputs are
automatically re-enabled, when the temperature drops.
The fully enclosed, black-coated aluminum case acts as a heat
sink and an RFI shield. The converters are designed for 19"
DIN-rack systems occupying 3 U / 4 TE only, but can also be
chassis-mounted by four screws. Fitting an additional heat
sink or ordering options with fitted heat sink is possible as well.
Page
Description .......................................................................... 1
Model Selection .................................................................. 2
Functional Description ........................................................ 5
Electrical Input Data ............................................................ 6
Electrical Output Data ......................................................... 8
Auxiliary Functions ............................................................ 16
Page
Electromagnetic Compatibility (EMC) ...............................
Immunity to Environmental Conditions .............................
Mechanical Data ...............................................................
Safety and Installation Instructions ...................................
Description of Options ......................................................
Accessories .......................................................................
19
21
22
23
24
26
Copyright © 2015, Bel Power Solutions Inc. All rights reserved.
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Page 1 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Model Selection
Table 1a: Model types BQ, GQ
Output 1
Vo nom Io nom
[VDC] [A]
Output power 1
Output 2
Io max
[A]
Operating input voltage range, efficiency
Vo nom Io nom Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηmin
[VDC] [A]
[A] Po nom [W] Po max [W] 14.4 – 36 VDC [%]
2
3.3
20*
25*
-
-
-
66*
82*
BQ1101-9G
81
5.1
12 3
15 3
24 3
16
8
6.6
4.4
20
10
8
5.5
-
-
-
82
96
99
106
102
120
120
132
BQ1001-9RG
BQ2320-9GR
BQ2540-9RG
BQ2660-9RG
85
87
87
88
5.1 4
7.5
15
5.1 4
7.5
15
77
97
BQ2001-9RG
85
12 4
4
3.3
2.2
9.2
7.4
5.1
12 4
15 4
24 4
4
3.3
2.2
9.2
7.4
5.1
96
99
106
120
120
132
BQ2320-9RG
BQ2540-9RG
BQ2660-9RG
87
87
88
15 4
24 4
Options
Vi max ηmin2
ηtyp Vi min –
[%] 21.6 – 54 VDC [%]
ηtyp
[%]
GQ1101-9G
86
88.5
89
90.5
86
-7, B, B1, non-G
GQ1001-9RG 85.5 86
GQ2320-9RG 87
89
GQ2540-9RG 86.5 88.5
GQ2660-9RG 88
90
GQ2001-9RG 85.5
-7, P, F,
B, B1, non-G
86 -7, F, B, B1, non-G
88.5 GQ2320-9RG 87
89
89 GQ2540-9RG 86.5 88.5
90.5 GQ2660-9RG 88
90
-7, P, F,
B, B1, non-G
Table 1b: Model types CQ, 48Q
Output 1
Vo nom Io nom
[VDC]
[A]
Output power1
Output 2
Io max
[A]
Vo nom Io nom
[VDC] [A]
Operating input voltage range, efficiency
Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηmin ηtyp Vi min – Vi max ηmin
[A] Po nom [W] Po max [W] 33.6 – 75 VDC [%] [%] 38.4 – 75 VDC [%]
2
3.3
5.1
5.1
12 3
12 3
15 3
15 3
24 3
24 3
20
16
16
8
8
6.6
6.6
4.4
4.4
25
20
16
10
8
8
6.6
5.5
4.4
-
-
-
66
82
82
96
96
99
99
106
106
82
102
82
120
96
120
99
132
106
5.1 4
12 4
12 4
15 4
15 4
24 4
24 4
7.5
4
4
3.3
3.3
2.2
2.2
15
9.2
7.2
7.4
6
5.1
4
5.1 4
12 4
12 4
15 4
15 4
24 4
24 4
7.5
4
4
3.3
3.3
2.2
2.2
15
9.2
7.2
7.4
6
5.1
4
77
96
96
99
99
106
106
97
120
96
120
99
132
106
CQ1101-9G
CQ1001-9RG
82
85
87
CQ2320-9RG
88
89.5
CQ2540-9RG
88.5
90
CQ2660-9RG
88.5
90
CQ2001-9RG
CQ2320-9RG
85
87
87
88
CQ2540-9RG
88.5
90
CQ2660-9RG
88.5
90
48Q1001-2R
83
48Q2320-2R
85
48Q2540-2R
85
48Q2660-2R
87
48Q2320-2R
85
48Q2540-2R
85
48Q2660-2R
87
Options
2
-7, B, B1, non-G
-7, P, F, B, B1, non-G
--7, P, F, B, B1, non-G
--7, P, F, B, B1, non-G
--7, P, F, B, B1, non-G
--7, F, B, B1, non-G
-7, P, F, B, B1, non-G
--7, P, F, B, B1, non-G
--7, P, F, B, B1, non-G
--
Table 1c: Model types DQ, EQ
Output 1
Vo nom Io nom
[VDC] [A]
Output power1
Output 2
Io max
[A]
Vo nom Io nom
[VDC] [A]
Operating input voltage range, efficiency
Options
Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηmin2 ηtyp Vi min – Vi max ηmin 2 ηtyp
[A] Po nom [W] Po max [W] 43 – 100.8 VDC [%] [%] 66 –137.55 VDC [%] [%]
3.3
20
25
-
-
-
66
82
DQ1101-9G
5.1
12 3
15 3
24 3
16
8
6.6
4.4
20
10
8
5.5
-
-
-
82
96
99
106
102
120
120
132
DQ1001-9RG
DQ2320-9RG
DQ2540-9RG
DQ2660-9RG
5.1 4
7.5
15
5.1
4
7.5
15
77
97
DQ2001-9RG
85
86.5 EQ2001-9RG
9.2
7.4
5.1
12 4
4
3.3
2.2
9.2
7.4
5.1
96
99
106
120
120
132
DQ2320-9RG
DQ2540-9RG
DQ2660-9RG
88
89
89
90 EQ2320-9RG 87
89
90.5 EQ2540-9RG 87.5 89
90 EQ2660-9RG 87.5 89.5
12 4
15 4
24 4
1
2
3
4
5
4
3.3
2.2
15 4
24 4
EQ1101-9G
-7, B, B1, non-G
85.5 86.5 EQ1001-9RG 85
86
88
90 EQ2320-9RG 87
89
89 90.5 EQ2540-9RG 87.5 89
89
90 EQ2660-9RG 87.5 89.5
82*
-7, P, F,
B, B1, non-G
84
86 -7, B, B1, non-G
-7, P, F,
B, B1, non-G
The cumulated power of both outputs cannot exceed the total power for the specified ambient temperature. See also Output Power at
Reduced Temperature.
Minimum efficiency at Vi nom, Io nom and TA = 25 °C
Double-output models with both outputs connected in parallel
Double-output models. Output 2 is a tracking output isolated from the output 1.
154 V for ≤ 2 s
NFND: Not for new designs
Preferred for new designs
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Part Number Description
C Q 2 5 40 -9 R B1 G
Input voltage Vi nom:
24 V .................................................................. B
36 V ................................................................... G
48 V .................................................................. C
48 V (Telecom, NFND) ..................................... 48
72 V .................................................................. D
110 V ................................................................. E
Series ................................................................ Q
Number of outputs:
Single-output models ......................................... 1
Double-output models ........................................ 2
Single-output models (long case) 2 .................... 6
Double-output models (long case) 2 ................... 7
Nominal output voltage of main output:
3.3 V ................................................................... 1
5.1 V ................................................................... 0
12 V .................................................................... 3
15 V .................................................................... 5
24 V ................................................................ 6, 7
Other voltages ............................................ 7, 8, 9
Other specifications or additional
features for single-output models 3 ..... 01 – 99
Nominal voltage of 2 nd output Vo2 nom
5.1 V ........................................................ 01 –
12 V ......................................................... 20 –
15 V ......................................................... 40 –
24 V ......................................................... 60 –
Other voltages or additional
features 3 .................................................................. 01 –
09
39
59
79
99
Operational ambient temperature range TA:
–10 to 50 °C (NFND) ........................................ -2
–25 to 71 °C (option, NFND) ............................ -7
– 40 to 71 °C ..................................................... -9
other 3 ............................................................................ -0, -5, -6
Output voltage control input (auxiliary function) 1 ................ R
Potentiometer (option, NFND) 1 ........................................... P
No fuse (option) ................................................................... F
Additional heatsinks ...................................................... B, B1
RoHS compliant for all six substances ................................ G
1
2
3
Option P excludes feature R and vice versa.
Models with 220 mm case length. Just add 5000 to the standard model number.
Customer-specific models.
Note: The sequence of options must follow the order above. This part number description is not inteded for creating part numbers.
NFND: Not for new designs.
Example:
Preferred for new designs
CQ2540-9B1G: DC-DC converter, input voltage
range 33.6 to 75 V, double-output model, each
output providing 15 V/ 3.3 A, equipped with a heat
sink, operating ambient temperature TA = – 40 to
71 °C, RoHS-compliant for all six substances.
sense lines, current sharing, Out OK signal, LED indicators, and
test sockets (not 48Q models).
Note: 48Q models are designed according to Telecom standards
ETS 300132-2 and EN 41003. Vi min is 38.4 V, such limiting the
input current I i to 150% of I i nom.
Note: All models have the following auxiliary functions, which are
not shown in the type designation: input and output filter, inhibit,
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Product Marking
01003a
Type designation, applicable safety approval and recognition
marks, CE mark, warnings, pin allocation, Power-One patents,
and company logo.
Double-output
model
Vo2+
6
Vo2–
10
Vo1+
4
Identification of LEDs, test sockets and potentiometer.
Input voltage range and input current, nominal output voltages
and currents, degree of protection, batch no., serial no., and
data code including production site, version (modification
status) and date of production.
28
i
30
Vi+
S+
12
32
Vi–
S–
14
Load
Vo1–
8
Output Configuration
The Q Series design allows different output configurations to
cover almost every individual requirement, by simply wiring the
outputs in parallel, series, or symmetrical configuration as per
the following figures. For further information and for parallel and
series operation of several converters see Electrical Output
Data.
Fig. 3
Series-output configuration
01004a
Double-output
model
Vo1+
4
S+
12
S–
14
01001a
Load 1
Single-output
model
28
Vo +
28
i
Vo+
4
30
Vi+
Vo1–
8
GND
Vo+
6
32
Vi–
Vo2+
6
Load 2
S+
12
Vo2–
10
i
Vo–
Load
30
Vi+
S–
14
32
Vi–
Vo–
8
Vo–
10
Fig. 4
Symmetrical-output configuration (with common ground)
Fig. 1
Single-output configuration
01005a
Double-output
model
Vo1+
4
S+
12
S–
14
01002a
28 i
Load 1
Double-output
model
Vo2+
6
30
Vi+
Vo1–
8
Vo1+
4
32
Vi–
Vo2+
6
Vo2–
10
28
i
S+
12
30
Vi+
S–
14
32
Vi–
Vo1–
8
Vo2–
10
Load 2
Load
Fig. 5
Independent-output configuration
Fig. 2
Parallel-output configuration
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Functional Description
The converters are designed as forward converters using
primary and secondary control circuits in SMD technology. The
switching frequency is approximately 200 kHz under nominal
operating conditions. The built-in high-efficient input filter
together with a small input capacitance generate very low
inrush currents of short duration. After transformer isolation and
rectification, the output filter reduces ripple and noise to a
minimum without compromising the dynamic ability. The output
voltage is fed to the secondary control circuit via separate
sense lines. The resultant error signal is sent to the primary
control circuit via a signal transformer.
Double-output models have the voltage regulation of output 2
relying on the close magnetic coupling of the transformer and
the output inductor together with the circuits' symmetry.
The current limitation is located at the primary side, thus
limiting the total output current in overload conditions. This
allows flexible loading of each output for unsymmetrical loads
in the range 10 to 90% of the total output power. In applications
with large dynamic load changes, we recommend connecting
such a load to output 1. If output 2 is not used, it should be
connected parallel to output 1. Both outputs can either be
series- or parallel-connected (see Electrical Output Data).
In normal operation, the internal control circuits are powered
by a third winding of the main choke (except 48 Q models).
Start-up is ensured from the input voltage by a linear regulator.
Note: When the output voltage is much lower then the nominal
value, this linear regulator is activated, generating considerable
power losses.
03111a
2
22 Out OK+
Primary
control circuit
i 28
Output
monitor
24 Out OK–
Output
control
18 T
16 R3
12 S+1
Vi+ 30
Input
filter
4
Vo+
6
Vo+
8
Vo–
10
Vo–
Output
filter
Vi– 32
Fuse
Cy
1
26
Cy
14 S–1
Isolation
20
1
Leading pins
2
Potentiometer for option P
Fig. 6
Block diagram of a single-output converter
3
4
4
Do not connect for models xQ1101 or with option P
Do not connect
03112a
2
22 Out OK+
Primary
control circuit
i 28
Output
monitor Vo2
24 Out OK–
Output
control
18 T
16
6
R3
Vo2+
Output
filter
Vi+ 30
10 Vo2–
Input
filter
12 S+1
Vi– 32
Fuse
Cy
1
26
20
2
Vo1+
8
Vo1–
14
Cy
Isolation
1
4
Output
filter
Leading pins
Potentiometer for option P
Fig. 7
Block diagram of a double-output converter
3
Do not connect for models with option P
4
S–1
4
Do not connect
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Electrical Input Data
General Conditions:
– TA = 25 °C, unless TC is specified.
– Sense lines connected directly at the connector, inhibit (28) connected to Vi – (32).
– R-input not connected; with option P, Vo set to Vo nom at Vi nom.
Table 2a: Input data
Input
BQ
Characteristics
Conditions
min
Vi
Operating input voltage
Io = 0 – Io max
TC min – TC max
14.4
V i nom
Nominal input voltage
V i abs
Input voltage limits
2 s without damage
Typical input current 1
Vi nom, Io nom
Vi min – Vi max
Io = 0
Pi 0
No-load input power
Idle input power 4
I inr p
Peak inrush current 2
t inr r
Rise time inrush
t inr h
Time to half value
t d on
Start-up time 3
GQ
max
min
36
21.6
24
Ii
P i inh
typ
0
0 → Vi min, Io nom
CQ
max
min
54
33.6
36
50
0
4.5
Vi nom , Io nom
typ
typ
Unit
max
75
V
48
63
0
3.0
100
2.2
A
2.5
3.0
2.5
1.0
1.5
1.5
W
55
40
35
A
50
40
35
µs
130
110
80
5
5
8
ms
Table 2b: Input data
48Q 2
Input
Characteristics
Conditions
min
Vi
Io = 0 – Io max
TC min – TC max
38.4
Operating input voltage
for ≤2 s, without lockout
V i nom
Nominal input voltage
V i abs
Input voltage limits
Ii
Typical input current
Pi 0
No-load input power
P i inh
Idle input power 4
Iinr p
Peak inrush current
t inr r
Rise time inrush
t inr h
Time to half value
t d on
Start-up time3
1
2
3
4
2
max
min
75
43
Vi nom, Io nom
0
0 →Vi min, Io nom
max
min
100.8
66
typ
0
2.2
Unit
max
137.5
V
154
72
100
Vi min – Vi max
Io = 0
Vi nom , Io nom
typ
EQ
108
48 2
2 s without damage
1
typ
DQ
110
125
1.5
0
200
1.0
A
2.5
5.5
5.0
1.5
3.5
3.5
W
35
20
45
A
35
50
15
µs
80
90
25
8
20
20
ms
Typical input current depends on model type
According to ETS 300132-2
See fig. 19
Converter inhibited
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Input Fuse
Input Stability with Long Supply Lines
An incorporated fuse in series to the negative input line
protects against severe defects. The fuse is not externally
accessible. Reverse polarity at the input will cause the fuse to
blow.
If a converter is connected to the power source by long supply
lines exhibiting a considerable inductance Lext, an additional
external capacitor Cext connected across the input pins
improves the stability and prevents oscillations.
Note: For models with no internal fuse, see opt. F. The customer
must provide an appropriate external fuse or circuit breaker.
Actually, a Q Series converter with its load acts as negative
resistor r i, because the input current I i rises, when the input
voltage Vi decreases. It tends to oscillate with a resonant frequency determined by the line inductance L ex t and the input
capacitance Ci + Cext, damped by the resistor R ext. The whole
system is not linear at all and eludes a simple calculation. One
basic condition is given by the formula:
Model
Fuse type
Reference and rating
BQ
very fast acting
2× Littelfuse 251, 10 A, 125 V
GQ
very fast acting
2× Littelfuse 251, 7 A, 125 V
CQ
very fast acting
Littelfuse 251, 10 A, 125 V
48Q
very fast acting
Littelfuse 251, 10 A, 125 V
DQ
very fast acting
Littelfuse 251, 7 A, 125 V
EQ
very fast acting
Littelfuse 263, 5 A, 250 V
L • Po max
Ci + C ext > —ext
———
—
—
—
—
—
—
Rext • Vi min²
Input Transient Protection
A metal oxide VDR (Voltage Dependent Resistor) together with
the input fuse and a symmetrical input filter form an effective
protection against high input transient voltages, which typically
occur in most installations, especially in battery-driven mobile
applications.
Nominal battery voltages in use are: 24, 36, 48, 72, 96, and 110
V. In most cases each nominal value is specified in a tolerance
band of –30% to +25%, with short excursions to ±40% or even
more.
In some applications, surges according to RIA 12 are specified
in addition to those defined in IEC 60571-1 or EN 50155. The
power supply must not switch off during these surges, and
since their energy can practically not be absorbed, an
extremely wide input voltage range is required. The Q Series
input ranges have been designed and tested to meet most of
these requirements. See also Electromagnetic Immunity.
dV i
( ri = —
—— )
dI i
Rext is the series resistor of the voltage source including the
supply lines. If this condition is not fulfilled, the converter may
not reach stable operating conditions. Worst case conditions
are a lowest Vi and a highest output power Po.
Low inductance L ext of the supply lines and an additional
capacitor Cext are helpful. Recommended values for Cext are
given in table 4, which should allow for stable operation up to
an input inductance of 2 mH. C i is specified in table 4.
JM085c
Lext
Rext
Vi+
Converter
Vo+
+
Cext
Ci
Load
Table 3: Fuse specifications
ri
Vo–
Vi–
Fig. 8
Input configuration
Table 4: C i and recommended values for Cext
Input Under-/Overvoltage Lockout
Model
Ci
Recomm. Cext
Voltage
If the input voltage falls outside the limits of Vi, an internally
generated inhibit signal disables the output(s).
BQ
220 µF
≥ 680 µF
40 V
GQ
110 µF
≥ 470 µF
63 V
Inrush Current
CQ
50 µF
≥ 470 µF
100 V
The inherent inrush current value is lower than specified in the
standard ETS 300132-2. The converters operate with relatively
small input capacitance C i (see table 4), resulting in low inrush
current of short duration. As a result, in a power-bus system the
converters can be hot-swapped, causing negligible
disturbances.
48Q
50 µF
≥ 470 µF
100 V
DQ
22 µF
≥150 µF
125 V
EQ
11 µF
≥ 68 µF
200 V
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25 °C, unless TC is specified.
– Sense lines connected directly at the connector, inhibit (28) connected to Vi – (32).
– R input not connected; with option P, Vo set to Vo nom at Vi nom.
Table 5a: Output data for single-output models and double-output models with both outputs in parallel configuration
Output
BQ – GQ1101
3.3 V
Characteristics
Conditions
min
max
min
max
min
Setting voltage of 1st output
Vi nom, Io nom
3.28
3.32
5.07
5.13
11.94
12.06
Vow
Worst-case output voltage
3.24
3.35
5.02
5.18
11.82
12.18
Vo P
Overvoltage limitation
by 2nd control loop
Vi min – Vi max
TC min – TC max
Io = 0 – Io max
4.5
4.9
5.9
6.4
13.5
14.3
Io
Output current 2
0.05
25*
0
16/20 3
0
8.0/10 3
Io nom
Nominal output current
Vi min – Vi max
TC min – TC max
IoL
Output current limit 2
vo
Po max Output power 1
Vi min – Vi max
TC min – TC max
vo d 4
Vi nom
I o nom ↔ 1/2 I o nom
td 4 5
Dynamic
load
regulation
Voltage deviation
Recovery time
Vo os
Dynamic line regulation
(output overshoot)
Vo tr
Output
voltage
trim range
αVo
via R-input 1
using opt. P 1
Temp. coefficient of Vo
20*
typ
16
32.5* 16.8/213
26*
Output
Switch. frequ.
Vi nom, I o nom
voltage noise
BW = 20 MHz
Total incl.spikes
typ
48Q / BQ – GQ2320
12 V
Vo1
4
typ
48Q / BQ – GQ1001
5.1 V
Unit
max
V
A
8.0
20.8/26 3 8.4/10.5 3
10.4/12.5 3
15
25
10
20
10
20
25
50
20
50
20
40
mVpp
82
82/1023
96/120 3
W
±300
±250
±200
mV
800
800
1500
µs
0 ↔ Vi max
0 – I o max
0.5
0.5
1.1•Vi min – Vi max
0.1•Io nom – Io nom
TC min – TC max
n.a.
4.0
n.a
4.6
Io nom, TC min – TC max
±0.02
±0.02
0.8
5.6
7.2
5.6
10.8
V
13.2
13.2
±0.02
%/K
* Converters with version V104 or higher.
If the output voltage is increased above Vo nom through R-input control, option P setting, or remote sensing, the output power should be
reduced accordingly, so that Po max and TC max are not exceeded.
2 See Output Power at Reduced Temperature.
3 First value for 48Q, 2nd value for BQ – GQ
4 Measured with a probe according to IEC/EN 61204, annex A
5 Recovery time see Dynamic load regulation.
1
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 5b: Output data for double-output models with both outputs in parallel configuration. General conditions as per table 5a
Output
48Q /BQ – GQ2540
15 V
Characteristics
Conditions
min
max
min
Setting voltage of 1st output
Vi nom, Io nom
14.93
15.08
23.88
24.12
Vow
Worst-case output voltage
15.23
23.64
24.36
Overvoltage limitation
of second control loop
Vi min – Vi max
TC min – TC max
I o = 0 – Io max
14.78
Vo P
17
18
27.5
29
Io
Output current 2
0
6.6/8.0 3
0
4.4/5.5 3
Io nom
Nominal output current
Vi min – Vi max
TC min – TC max
IoL
Output current limit
vo 4
Output
Switch. frequ.
voltage noise
Total incl. spikes
6.6
6.9/8.4 3
typ
Unit
Vo1
2
typ
48Q /BQ – GQ2660
24 V
max
V
A
4.4
8.6/10.4 3
4.6/5.75 3
6.2/8.0 3
Vi nom, Io nom
BW = 20 MHz
10
20
20
40
Po max Output power 1
Vi min – Vi max
TC min – TC max
99/120 3
106/132 3
W
vo d 4
Vi nom
I o nom ↔ 1/2 I o nom
±200
±600
mV
1500
800
µs
td 4 5
Dynamic
load
regulation
Voltage deviation
Recovery time
Vo os
Dynamic line regulation
(output overshoot)
0 ↔ Vi max
0 – Io max
Vo tr
Output
via R-input
voltage
trim range using opt. P 1
1.1• Vi min – Vi max
0.1 • Io nom – Io nom
TC min – TC max
αVo
Temp. coefficient of Vo
Io nom, TC min – TC max
1
2
3
4
5
6
10
25
20
40
0.8
9.0
13.5
±0.02
mVpp
1.2
16.5
14.46
16.5
21.6
V
26.4
26.4
±0.02
%/K
If the output voltages are increased above Vo nom through R-input control, option P setting or remote sensing, the output power should be
reduced accordingly so that Po max and TC max are not exceeded.
See Output Power at Reduced Temperature.
First value for 48Q, 2nd value for BQ – GQ
Measured with a probe according to IEC/EN 61204, annex A
Recovery time until Vo remains within ±1% of Vo, see Dynamic load regulation.
For DQ2660 and EQ2660: 16.8 V
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 6a: Output data for double-output models with output 1 and output 2 in symmetrical or independent configuration.
General conditions as per table 5a.
Output
48Q / BQ – GQ2320
12 V /12 V
Characteristics
Conditions
min
Output 1
typ
max
Vo
Output setting voltage 1
Vi nom, Io nom
11.94
12.06
Vow
Worst-case output
voltage
11.82
12.18
Vo P
Overvoltage limitation
of second control loop
Vi min – Vi max
TC min – TC max
Io = 0 – Io max
Io
Output current 2
0.8
Io nom
Nominal output current
Vi min – Vi max
TC min – TC max
Io L
Output current limit 2
vo 4
Output Switch. frequ.
Vi nom, Io nom
voltage
BW = 20 MHz
noise Total incl. spikes
Po max Output power
vo d 4
td 4 5
Vo tr
αVo
1
2
3
4
5
6
total1
Dynamic Voltage
load
deviation
regulation
Recovery
time
n.a.
7.2/9.2 3
48Q / BQ – GQ2540
15 V /15 V
Output 2
min typ max
11.88
12.12 14.93
13.5
15
0.8
7.2/9.2 3
min
Output 2
typ
max
15.08 14.85
15.23
n.a.
15.15
17
19
3.3
6.0/7.43
8.6/10.4 3
8
16
8
16
8
16
8
16
16
40
16
40
16
40
16
40
96 /120 3
±200
99/120 3
±300
±200
1500
Output
via R-input 1.1•Vi min – Vi max 7.2
voltage
0.1• Io nom – Io nom
trim range using opt. P TC min – TC max
10.8
see Output
Voltage Regulation
13.2
±0.02
±0.02
±300
mV
µs
9.0
16.5
13.5
16.5
±0.02
mVpp
W
1500
13.2
A
3.3
10.4/133 6.9/8.4 3
Vi min – Vi max
TC min – TC max
V
see Output
Voltage Regulation
6.0/7.4 3 0.6
0.6
4.0
8.4/10.5 3
Temp. coefficient of Vo Io nom
TC min – TC max
Output 1
typ max
see Output
14.78
Voltage Regulation
4.0
Vi nom
I o nom ↔ 1/2 I o nom
I o2 = 1/2 Io nom
min
Unit
see Output
Voltage Regulation
V
±0.02
%/K
If the output voltages are increased above Vo nom through R-input control, option P setting, or remote sensing, the output power should be
reduced accordingly so that Po max and TC max are not exceeded.
See Output Power at Reduced Temperature.
First value for 48Q, 2nd value for BQ – GQ
Measured with a probe according to IEC/EN 61204, annex A
Recovery time until Vo remains within ±1% of Vo, see Dynamic load regulation.
Io nom = Io1 + Io2
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 6b: Output data for double-output models with output 1 and output 2 in symmetrical or independent configuration.
General conditions as per table 5a
Output
48Q2660
24 V /24 V
Characteristics
Conditions
min
Output 1
typ max
Output 2
min typ max
Vo
Output setting voltage 1
Vi nom, Io nom
23.88
24.12 23.76
Vow
Worst-case output
voltage
23.64
24.36
Vo P
Overvoltage limitation
of second control loop
Vi min – Vi max
TC min – TC max
Io = 0 – Io max
Io
Output current 2
0.4
Io nom
Nominal output current
Vi min – Vi max
TC min – TC max
2
Io L
Output current limit
vo 4
Output Switch. frequ.
Vi nom, Io nom
voltage
BW = 20 MHz
noise Total incl. spikes
Po max Output power total
vo d 4
td 4 5
Vo tr
αVo
1
Dynamic Voltage
load
deviation
regulation
Recovery
time
min
Output 2
typ max
24.12
23.76
24.36
see Output
Voltage Regulation
4.0
27.5
30
0.4
4.0
n.a.
0.4
2.2
4.6
27.5
30
0.4
5.1
5.1
2.2
6.2
24.24
5.8
10
25
10
25
10
25
20
40
20
40
20
40
20
40
106
132
±500
400
n.a.
±0.02
±400
see Output
14.4 3
Voltage Regulation
21.6
±0.02
mVpp
W
±500
mV
400
26.4
A
8.0
25
±400
V
2.2
10
Vi min – Vi max
TC min – TC max
Io nom
TC min – TC max
Output 1
min typ max
24.24 23.88
2.2
Vi nom
I o nom ↔ 1/2 I o nom
I o2 = 1/2 Io nom
Unit
see Output
23.64
Voltage Regulation
n.a.
Output
via R-input 1.1•Vi min -Vi max 14.4
voltage
0.1•Io nom – Io nom
trim range using opt. P TC min – TC max
Temp. coefficient of Vo
BQ – GQ2660
24 V /24 V
µs
26.4
see Output
Voltage Regulation
V
±0.02
%/K
26.4
±0.02
1
If the output voltages are increased above Vo nom through R-input control, option P setting or remote sensing, the output power should be
reduced accordingly so that Po max and TC max are not exceeded.
2 See: Output Power at Reduced Temperature
3 For DQ2660 and EQ2660: 16.8 V
4 Measured with a probe according to IEC/EN 61204, annex A
5 Recovery time until V remains within ±1% of V , see Dynamic load regulation
o
o
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Parallel and Series Connection
+
Single- or double-output models with equal output voltage can
be connected in parallel without any precaution, by interconnecting the T-pins for equal current sharing; see fig. 9a.
05092a
Double-output models with their outputs connected in parallel
behave exactly like single-output models and are fully
regulated. There is no inconvenience or restriction using the Rinput with sense lines.
Single-output and/or double-output models can be connected
in series. For double-output models with both outputs
connected in series, consider that the effect via sense lines, Rinput or option P is doubled. See fig. 9b.
Out OK+
Vo2+
Out OK –
Vo2–
i
Vo1+
Vi+
S+
Vi–
S–
Vo1–
Parallel configuration of double-output models with both
outputs connected in series is shown in fig. 9c. It is essential
that the Vo1– pins of all paralleled converters are connected
together, as the auxiliary signals are referenced to Vo1– or to
S–. The effect via sense lines, R-input or option P is doubled.
Out OK+
Notes:
• If the second output of double-output models is not used,
connect it in parallel to the main output to maintain good
regulation.
• Parallel connection of several double-output models should
always include main and second outputs to produce good
regulation.
–
Vo2+
Out OK –
Vo2–
i
Vo1+
Vi+
S+
Vi–
S–
Vo1–
i
+
Load
Rp
Fig. 9b
Series connection of double-output models.
• Series connection of second outputs without involving their main
outputs should be avoided as regulation may be poor.
+
• The maximum output current is limited by the output with the
lowest current limit, if several outputs are connected in series.
06114a
Double
output
Rp
• Rated output voltages above 48 V (SELV = Safety Extra Low
Voltage) need additional measures in order to comply with
international safety requirements.
+
Out OK+
Vo2–
Out OK –
Vo1+
DR
Vo+/Vo1+
Out OK+
S+
Out OK–
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
T
i
Out OK–
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
Vi+
S–
Vi–
Vo1–
Double
output
DR
Fig. 9a
Parallel connection of single- and double-output models.
Load
S+
S+
R
Vo+/Vo1+
Out OK+
i
Load
Rp
+
Vo2+
05091b
T
–
T
–
+
i
T
Vo2+
Out OK+
Vo2–
Out OK –
Vo1+
i
S+
Vi+
S–
Vi–
Vo1–
R
Fig. 9c
Parallel connection of double-output models with seriesconnected outputs.
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Redundant Configuration
Fig. 10a shows a circuit with ORing diodes DR in the positive
output lines, forming a redundant configuration. For accurate
output voltage regulation, the sense lines are connected after
the ORing diodes. The T pins should be connected together to
+
05091b
T
Rp
DR
S+
Out OK–
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
Caution: Do not connect the sense lines after the ORing diodes,
but directly with the respective outputs. If for some reason one of
the converters switches off and the ORing diode is blocking, a
reverse voltage can appear between the sense pin and the
respective output pin and damage the converter.
DR
–
+
i
Out OK–
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
Load
Vo+/Vo1+
S+
Note: The current-share logic can only increase the output voltage
marginally and remains functional even in the case of a failing
converter.
The current sharing may be improved by interconnecting the T
pins of the converters. This circuit is a bit less accurate, but
more flexible and less sensitive.
T
Out OK+
If one of the converters fails, the remaining converters can
deliver the whole output power.
Fig. 10b shows a quite similar circuit with ORing diodes DR, but
with different output loads. To compensate for the voltage drop
of the ORing diodes (if necessary), an auxiliary circuit is added
to each power supply consisting of a small diode DS and a
small resistor RS. We recommend a current of approximately 10
mA through DS and RS. Only Load 0 benefits from a secured
supply voltage.
Vo+/Vo1+
Out OK+
produce reasonable current sharing between the parallelconnected converters.
Output Voltage Regulation
The dynamic load regulation is shown in the figure below.
Vo
Vod
Fig. 10a
Simple redundant configuration of double-output models with
parallel-connected outputs.
+
td
DR
1
Vo+/Vo1+
S+
Out OK–
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
DS
RS
0.5
Load 1
Out OK+
i
DR
S–
i
Vo–/Vo1–
Vi+
Vo+/Vo2+
Vi–
Vo–/Vo2–
RS
Fig. 10b
Redundant configuration of double-output models with
parallel-connected outputs.
Load 0
Out OK–
DS
Load 2
S+
≥ 10 µs
05102c
t
Fig. 11
Deviation of Vo versus dynamic load change
Vo+/Vo1+
Out OK+
≥ 10 µs
0
The static load regulation measured at the sense pins is
negligible. Correct connection of the sense lines almost
eliminates any load regulation; see Sense Lines.
T
+
Vod
td
Io /Io nom
T
–
Vo ±1 %
t
06097b
Rp
Vo ±1 %
In a symmetrical configuration the output 1 with open R input is
regulated to Vo1 nom, regardless of the output currents. If the
load on output 2 is too small (<10% of Io nom), its voltage will
rise and may activate the overvoltage protection, which will
then reduce the voltage on both outputs.
Vo2 depends upon the load distribution: If each output is loaded
with at least 10% of Io nom, the deviation of Vo2 remains within
±5% of Vo nom. The following figures explain the regulation with
different load distributions up to the current limit. If Io1 = Io2 or
the two outputs are connected in series, the deviation of Vo2
remains within ±1% of the value of Vo nom, provided that the
load is at least Io min.
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Note: If output 2 is not used, we recommend to connect it in
parallel to Vo1. This results in improved efficiency and stability.
Vo2 [V]
05111b
There is no specific built-in protection against externally applied
overvoltage.
Io1 = 7.2 A
Io1 = 5.6 A
Io1 = 4.0 A
Io1 = 2.4 A
Io1 = 0.8 A
Io1 = 0.4 A
Vo1 + 0.5 V
(in double-output models, the 2 nd output is monitored). This
circuitry further protects the load in the unlikely event of a
malfunction of the main control circuit.
Note: If output 2 is not loaded, the 2nd control loop may reduce V01
under boundary conditions.
Output Current Protection
Vo1
All outputs are fully protected against continuous open-circuit
condition or continuous short-circuit by an electronic current
limitation located on the primary side.
Vo1 – 0.5 V
Single-output models and series- or parallel-connected doubleoutput models have a quasi rectangular constant current
limitation characteristic.
Io2 [A]
2
0
4
6
8
10
Fig. 12
Double-output models with 12 V: Voltage deviation of Vo2
versus Io2 for different currents on output 1
05112a
Io1 = 6.0 A
Io1 = 4.6 A
Io1 = 3.3 A
Io1 = 2.0 A
Io1 = 0.66 A
Vo1 + 0.5 V
Current distribution in overload is dependent upon the type of
overload. A short-circuit in one output will cause the full current
flow into that output, whereas a resistive overload results in
more even distribution and in a reduced output voltage.
Vo1
Vo/Vo nom
Vo1 – 0.5 V
[A]
Operation at reduced
temperature only
I
o2
Fig. 13
2
4
6
0
8
Double-output models with 15 V: Voltage deviation of Vo2
versus Io2 for different currents on output 1
Io nom Io max Io L
05114c
1.0
0.95
0.5
Vo2 max = 28 V
Vo2 [V]
05113a
Io1 = 4.0 A
Io1 = 3.1 A
Io1 = 2.2 A
Io1 = 1.3 A
Io1 = 0.44 A
Vo1 + 1.0 V
Out of specs.
Vo2 max = 18 V
Vo2 [V]
In double-output models, only the total current is limited,
allowing free choice of load distribution between the two
outputs, up to Io1 + Io2 ≤ Io max. However, a small current should
remain on both outputs to guarantee good voltage regulation. In
case of overload (Io1 + Io2 > Io max) both output voltages are
reduced simultaneously.
Io
0
Fig. 15a
BQ – GQ models: Current limitation of single- or double-output
models with series-connected outputs (no opt. B or B1)
Vo1
Vo/Vo nom
Vo1 – 1.0 V
1
2
3
4
5
6
05104b
1.0
Fig. 14
Double-output models with 24 V: Voltage deviation of Vo2
versus Io2 for different currents on output 1
0.8
Out of specs.
0
Io2 [A]
Io nom Io L
0.6
Output Overvoltage Protection
0.4
Output voltage overshoot may occur, if the converter is either
hot plugged-in or disconnected, the input voltage is switched on
or off, the converter is switched with an inhibit signal, or after a
reset of a short circuit and power failure. Output overvoltage
can also result due to incorrectly wired sense lines.
A fully independent output voltage monitor (second control
loop) limits the voltage Vo or Vo2 to approximately 1.25 • Vo nom
0.2
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Io/Io nom
Fig. 15b
48Q models: Current limitation of single- or double-output
models with series-connected outputs (no opt. B or B1)
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
influenced by input voltage, output current, airflow, and
temperature of surrounding components and surfaces. TA max is
therefore, contrary to TC max, an indicative value only.
Efficiency
η [%]
90
JM082
Vi nom
Caution: The installer must ensure that under all operating
conditions TC remains within the limits stated in the table
Temperature specifications.
Vi min
85
Vi max
Note: Sufficient forced cooling or an additional heat sink improves
the reliability or allows TA to be higher than TA max, as long as TC max
is not exceeded. In rack systems without proper thermal
management, the converters must not be packed too densely! In
such cases the use of a 5 or 6 TE front panel is recommended.
80
75
1
3
2
Io [A]
A temperature sensor generates an internal inhibit signal,
which disables the outputs, if the case temperature exceeds
TC max. The outputs are automatically re-enabled when the
temperature drops below this limit. This feature is not fitted to
48Q models.
5
4
Fig. 16a
Efficiency versus input voltage and current per output
(BQ2320)
η [%]
90
JM083
Vi nom
Operating BQ – GQ models with output current beyond Io nom
requires a reduction of the ambient temperature TA to 50 °C or
forced cooling. When TC max is exceeded, the converter runs
into its thermal protection and switches off; see fig. 17a.
Vi min
85
Vi max
Note: According to EN 50155, Class Tx, the converters BQ – GQ
can be operated with Po nom continously at TA = 70 °C, and then for
10 min at TA = 85 °C without shutdown.
80
75
1
2
3
Fig. 17b shows the operation of 48Q models beyond TA = 50 °C
with forced cooling.
Io [A]
4
5
Po
Fig. 16b
Efficiency versus input voltage and current per output
(EQ2320)
Po max
forced
cooling
05116b
Po nom
Hold-up Time
The Q Series converters provide virtually no hold-up time. If
hold-up time is required, use external output capacitors or
decoupling diodes together with input capacitors of adequate
size.
0.75 Po nom
convection
cooling
TC max
Formula for additional external input capacitor:
2 • Po • t h • 100
C i ext = –––––––––––––––
η • (V ti 2 – V i min2)
where as:
C i ext =
Po
=
η
=
th
=
Vi min =
Vt i
=
TA min 50
external input capacitance [mF]
output power [W]
efficiency [%]
hold-up time [ms]
minimum input voltage [V]
threshold level [V]
60
70
80
90
TA
100 °C
Fig. 17a
Output power derating versus TA for BQ – GQ models
Po
05110b
Po nom
forced
cooling
convection
cooling
Thermal Considerations and Protection
If a converter is located upright in quasi-stationary air
(convection cooling) at the indicated maximum ambient
temperature TA max (see table Temperature specifications), and
is operated at its nominal input voltage and output power, the
temperature TC measured at the Measuring point of case
temperature (see Mechanical Data) will approach TC max after
the warm-up phase. However, the relationship between TA and
TC depends heavily on the operating conditions and the
integration into a system. The thermal conditions are
TC max
0.4 Po nom
–10
30
40
50
60
70
80 °C
TA
Fig. 17b
Output power derating versus TA for 48Q models
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 7: Inhibit characteristics
Auxiliary Functions
Inhibit for Remote On/Off
Note: If this function is not used, the inhibit pin 28 must be
connected with pin 32 to enable the output(s). A non-connected
pin 28 will be interpreted by the internal logic as an active inhibit
signal and the output(s) will remain disabled (fail safe function).
An inhibit input enables (logic low, pull down) or disables (logic
high, pull up) the output, if a logic signal, e.g. TTL, CMOS is
applied. In systems consisting of several converters, this
feature may be used, for example, to control the activation
sequence of the converters by means of logic signals, or to
allow the power source for a proper start-up, before full load is
applied.
Characteristics
Conditions
min
Vinh
Inhibit Vo = on
voltage
Vo = off
Vi min – Vi max
TC min – TC max
– 50
0.8
2.4
50
Inhibit current
Vinh = – 50 V
Vinh = 0 V
Vinh = 50 V
I inh
typ
max Unit
VDC
– 500
–40
+500
µA
The output response, when enabling and disabling the output
by the inhibit input, is shown in the following figure.
Vo /Vo nom
tf
tr
06159a
1.01
0.99
06091a
28
S+
i
Vinh
Ii
30
Vi+
Vi
32
Vi–
12
Vo+
4
Vo+
6
Vo–
8
Vo–
10
S–
14
0.1
0
Io
Vo
Vi
t
td on
Vi min
0
Load
Iinh
t
Vinh [V]
2.4
0.8
26
t
Fig. 19
Output response as a function of Vi (on/off switching) or
inhibit control
Fig. 18
Definition of input and output parameters
Table 8: Inhibit response times (typ. values, outputs with ohmic load, R-input left open-circuit)
Characteristics
Conditions
BQ
48Q
CQ
GQ
DQ*
EQ*
Unit
tr
Output voltage rise time
(indicative values)
Vi nom, R L = Vo nom /Io nom
Vi inh = 2.4 → 0.8 V
1.5
1.3
1.3
1.5
1.5
1.6
ms
tf
Vi min
Output voltage fall time
(indicative values)
Vi nom, R L = Vo nom /Io nom
Vi inh = 0.8 → 2.4 V
0.5
0.8
1.3
3
0.5
0.6
1.2
3
0.5
0.6
1.3
3
0.5
0.8
1.5
3
0.5
0.7
1.1
3
0.5
0.7
1.5
3
3.3 V
5V
12 / 15 V
24 V
* Models with version V104 or higher
Current Sharing
The current sharing facility should be used when several
converters are operated in parallel or redundant connection.
This feature avoids that some converters are driven into current
limitation and thus produce excessive losses. As a result, the
stress of the converters is reduced, and the system reliability is
further improved.
Simple interconnection of the T pins causes the converters to
share the output current. The current tolerance of each
converter is approx. ±20% of the sum of its nominal output
currents Io1 nom + Io2 nom.
In n+1 redundant systems, a failure of a single converter will not
lead to a system failure, if the outputs are decoupled by diodes;
see fig. 10.
Note: T-function only increases the output voltage, until the
currents are evenly shared. If in a redundant system, one
converter fails, the remaining converters keep sharing their
currents evenly.
Since the T pins are referenced to the pins S –, the S– pins of
all converters must have the same electrical potential.
Double-output converters with both outputs connected in
series can also be paralleled with current sharing, if pins Vo1–
of all converters are connected together, see fig. 9c.
If the output voltages are programmed to a voltage other than
Vo nom by means of the R pin or option P, the outputs should be
adjusted individually within a tolerance of ±1%.
Important: For applications using the hot-swap capabilities,
dynamic output voltage changes during plug-in/plug-out must be
considered.
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Programmable Output Voltage (R-Function)
This feature is not available on models with 3.3 V output or with
option P.
Note: R-inputs of n converters with paralleled outputs may be
paralleled too, but if only one external resistor is used, its value
should be R1/n or R2/n, respectively.
06093b
Note: Models with 3.3 V output or with option P: The R-input must
be left open-circuit.
Doubleoutput
model
The converters offer a programmable output voltage. The
adjust is performed either by an external control voltage Vext or
an external resistor R1 or R2, connected to the R-input.
Trimming is limited to the values given in the table below (see
also Electrical Output Data). With open R-input, the output
voltage is set to Vo nom.
With double-output models, both outputs are affected by the
R-input settings.
If output voltages are set higher than Vo nom, the output
currents should be reduced accordingly, so that the maximum
specified output power is not exceeded.
Vext
+ –
Vo1+ 4
S+ 12
Load 1
S– 14
i
Vi+
Vo1– 8
Vi–
Vo2+ 6
Load 2
Vo2– 10
Fig. 20
Output adjust using an external control voltage Vext.
06094b
Single-output
model
a) Adjustment by means of an external control voltage
Vext between R (pin 16) and S– (pin 14); see fig. 20.
Vext
Vo
Vext ≈ 2.5 V • –––––––
Vo ≈ Vo nom • –––––
Vo nom
2.5 V
R 16
R2
Vo+ 4
R1
Vo+ 6
i
S+ 12
Vi+
S– 14
Vi–
Vo– 8
Load
Caution: To prevent damage, Vext should not exceed 20 V, nor be
negative.
b) Adjustment by means of an external resistor:
The resistor can either be connected:
• between R (pin 16) and S – (pin 14) to set Vo < Vo nom , or
• between R (pin 16) and S+ (pin 12) to set Vo > Vo nom.
R 16
Vo– 10
Fig. 21
Output adjust using a resistor R1 (to lower Vo) or R2 (to
increase Vo).
Table 9a: R1 for Vo < Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R2 = not fitted
Vo nom = 5.1 V
Vo [V]
R1 [kΩ
Ω]
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5
14.7
16.5
18.2
21.5
25.5
30.1
37.4
47.5
64.9
97.6
200
Vo nom = 12 V
Vo [V]
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
Vo nom = 15 V
R1 [kΩ
Ω]
1
14
15
16
17
18
19
20
11
22
23
5.62
6.65
8.06
9.76
12.1
15.4
20
28
44.2
93.1
Vo [V]
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
Vo nom = 24 V
R1 [kΩ
Ω]
1
18
19
20
21
22
23
24
25
26
27
28
29
6.04
6.98
8.06
9.31
11
13.3
16.2
20
26.1
36.5
56.2
115
Ω]
R1 [kΩ
Vo [V] 1
15 2
16 2
17 2
18 2
19
20
20.5
21
21.5
22
22.5
23
23.5
30.0 2
32.0 2
34.0 2
36.0 2
38.0
40.0
41.0
42.0
43.0
44.0
45.0
46.0
47.0
6.65 2
8.06 2
9.76 2
12.1
15.4
20
23.7
28.0
34.8
44.2
60.4
90.9
190
Table 9b: R2 for Vo > Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R1 = not fitted
Vo nom = 5.1 V
1
2
Vo [V]
R 2 [kΩ
Ω]
5.2
5.3
5.4
5.5
5.6
215
110
75
57.6
46.4
Vo nom = 12 V
Vo [V]
12.2
12.4
12.6
12.8
13
13.2
1
24.4
24.8
25.2
25.6
26.0
26.4
Vo nom = 15 V
R 2 [kΩ
Ω]
931
475
316
243
196
169
Vo [V]
15.3
15.5
15.7
16
16.2
16.5
Vo nom = 24 V
R 2 [kΩ
Ω]
1
30.6
31
31.4
32
32.4
33
1020
619
453
316
267
221
R 2 [kΩ
Ω]
Vo [V] 1
24.5
25
25.5
26
26.4
49
50
51
52
52.8
1690
866
590
442
374
First column: single or double output models with separated/paralleled outputs, second column: outputs in series connection.
Not possible for DQ2660 and EQ2660.
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Output Good Signal (Out-OK)
The isolated Out-OK output gives a status indication of the
converter and the output voltage. It can be used for control
functions such as data protection, central system monitoring or
as a part of a self-testing system. It can be connected to get a
centralized fault detection or may be used for other systemspecific applications at the primary or the secondary side of the
converter.
Connecting the Out-OK as per fig. 22, VOK <1.0 V indicates that
the Vo or Vo1 of the converter is within the range V t1 low – V t1 high.
V t1 low corresponds to 0.95 - 0.98 Vo1 nom, V t1 high to 1.02 – 1.05
Vo1 nom.
Note: Using the R-input or the option P, the monitor level is tracking
the programmed output voltage.
In an error condition, if the output voltage is out of range due to
overload or an external overvoltage, VOK will approach Vp.
The output is formed by an NPN transistor. The emitter (Out
OK–) can be connected to primary Vi– or secondary Vo1– to
get an open-collector output. In a configuration of several Q
Series converters, the Out OK pins can be series-connected in
order to get a system level signal (as shown in fig. 9). If one of
the converters fails, the series-connected output rises to high
IOK
1k
Rp
Table 11: Voltage compensation by sense lines
Nominal output
voltage
∆VS+
∆VS–
Sum of
∆VS+ + ∆VS–
Unit
3.3 V, 5.1 V
≤ 0.5
≤ 0.25
≤ 0.5
V
12 V, 15 V
≤ 1.0
≤ 0.5
≤ 1.0
24 V
≤ 1.0
≤ 1.0
≤ 2.0
VOK
20 V
Test Jacks and LEDs
Out OK–
Test jacks (for pin diameter 2 mm) are located at the front of the
converter and allow monitoring the main output voltage at the
sense line terminals. The test sockets are protected by internal
series resistors. Double-output models show the sense line
voltage of output 1 at the test jacks. 48Q models have no test
jacks.
Fig. 22
Out OK function
Vp
Dimensioning of resistor value Rp ≥ ––––––
0.5 mA
Caution: Out-OK is protected by an internal series
resistor and a Zener diode. To prevent damage, the
applied current IOK should be limited to ±10 mA.
48Q models exhibit a green LED In-OK to monitor the input
voltage. BQ – GQ models have an additional LED Out-OK,
which is activated simultaneously to the Out-OK signal.
Table 12: Display status of LEDs
Table 10: Out-OK data
Conditions
VOK Out-OK voltage Output okay, IOK < 0.5 mA
IOK
Caution: Sense lines should always be connected. Incorrectly
connected sense lines may cause an overvoltage at the ouput,
which could damage the output load and activate the second
control loop. The sense lines can handle only small currents.
Note: Sense line connection in a redundant configuration is shown
in fig. 10.
Out OK+
22
24
Characteristics
To ensure correct operation, both sense lines must be
connected to their respective power output. With doubleoutput models, the sense lines must be connected to output 1
only. Caution should be exercised, if outputs are seriesconnected, as the compensated voltage is effectively doubled.
Because the effective output voltage and output power are
increased by the sense lines, the minimum input voltage rises
proportionally to the compensated output voltage.
+ Vp
06096a
Output
control
circuit
Applying generously dimensioned cross-section load leads
help avoiding troublesome voltage drops. To minimize noise
pick-up, wire the sense lines parallel or twisted. For
unsymmetrical loads, we recommend connecting the sense
lines directly at the female connector.
Out-OK current Output fail, VOK ≤ 15 V
min typ max Unit
0.8 1.0
V
25
µA
LED In OK
LED Out OK
green
green
green
x
green
off
off
green
off
off
Sense Lines
This feature allows for compensation of voltage drops at the
main output across connector contacts and load lines. If the
sense lines are connected at the load rather than directly at the
connector, the user must ensure that the differential voltages
(measured on the connector) ∆VS+ (between Vo+ and S+) and
∆VS – (between Vo– and S–) do not exceed the values in the
table below.
Operating condition
normal operation
incorrect sense line connection
overtemperature
overload
output overvoltage
output undervoltage
not possible
no input voltage
input voltage too low
input voltage too high
inhibit input open/high
x = dependent on actual operating condition
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Electromagnetic Compatibility (EMC)
A metal oxide VDR together with an input fuse and a symmetrical input filter form an effective protection against high
input transient voltages, which typically occur in most
installations, especially in battery-driven mobile applications.
The Q Series has been successfully tested to the following
specifications:
Electromagnetic Immunity
Table 13: Immunity type tests
Phenomenon
Standard
Supply related
surge
RIA 12
Direct transients
RIA 12
EN 50155:
1995
Level
Coupling
mode1
Value
applied
Waveform
Source
imped.
Test
procedure
In
oper.
Perf.
crit. 2
B
+i/– i
1.5 • Vbatt
0.1/1/0.1 s
0.2 Ω
1 positive
surge
yes
A
5 pos. and 5 neg.
impulses
yes
A
EN 50155
Indirect coupled
transients
1Ω
1.4 • Vbatt
D4
–i/c, +i/–i
G5
H
±1800 Vp
5/50 µs
5Ω
±8400 Vp
0.05/ 0.1 µs
100 Ω
1800 Vp
5/50 µs
8400 Vp
0.05/0.1 µs
contact discharge
8000 Vp
1/50 ns
330 Ω
A
15000 Vp
10 positive and
10 negative
discharges
yes
air discharge
80 – 1000 MHz
yes
A
800 – 1000 MHz
yes
A
60 s positive
60 s negative
transients per
coupling mode
yes
A
yes
B
yes
B
yes
B
2Ω
5 pos. and 5 neg.
surges per
coupling mode
–o/c, +o/–o, –o/–i
L
Electrostatic
discharge
(to case)
IEC/EN
61000-4-2
46
Electromagnetic
field
IEC/ EN
61000-4-3
x7
antenna
20 V/m
80% AM, 1 kHz
n.a.
8
antenna
20 V/m
80% AM, 1 kHz
n.a.
10 Vm
1400 – 2100 MHz
5 V/m
2100 – 2500 MHz
3 V/m
Electrical fast
transients/burst
IEC/EN
61000-4-4
Surges
IEC/EN
61000-4-5
39
4
3
FTZ 19 Pfl 1
Conducted
disturbances
IEC/EN
61000-4-6
Power frequency
magnetic field
IEC/EN
61000-4-8
1
2
3
4
5
6
7
8
9
10
11
12
13
33
50 Ω
+i/c, – i/c
±2000 Vp3
12 Ω
+i/– i
1000 Vp3
capacit. (fig. 10), o/c
10
5100 – 6000 MHz
±2000 Vp9 bursts of 5/50 ns,
5 kHz over 15 ms,
±4000 Vp
burst period: 300
±2000 Vp
ms
direct coupl. (fig. 9)
+i/c, –i/c,+i/– i
1.2/50 µs
13
+i/–i
150 Vp
0.1/0.3 ms
<100 A
3 pos. 5 repetitions
yes
A
3 11
i, o, signal wires
10 VAC
(140 dBµV)
AM 80%
1 kHz
150 Ω
0.15 – 80 MHz
yes
A
60 s in all 3 axis
yes
A
12
100 A / m
i = input, o = output, c = case.
A = normal operation, no deviation from specs; B = temporary loss of function or deviation from specs possible
Measured with an external input cap specified in table 4. Complies with EN 50121-3-2:2006 table 7.3 and EN 50121-4:2006 table 2.3.
Corresponds to EN 50155:2001, waveform A, and EN 50121-3-2:2000 table 7.2.
Corresponds to EN 50155:2001, waveform B.
Exceeds EN 50121-3-2:2015 table 6.3 and EN 50121-4:2006 table 1.4.
Corresponds to EN 50121-3-2:2015 table 6.1 and exceeds EN 50121-4:2006 table 1.1.
Corresponds to EN 50121-3-2:2015 table 6.2 and EN 50121-4:2006 table 1.2 (compliance with digital mobile phones).
Corresponds to EN 50121-3-2:2015 table 5.2 and EN 50121-4:2006 table 2.2.
Covers or exceeds EN 50121-3-2:2015 table 4.3 and EN 50121-4:2006 table 2.3.
Corresponds to EN 50121-3-2:2015 table 5.1 and EN 50121-4:2006 table 3.1 (radio frequency common mode).
Corresponds to EN 50121-4:2006 table 1.3.
Valid for 48Q and CQ only.
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Electromagnetic Emissions
dBµV
80
Table 14: Emissions at Vi nom and Io nom
Model
Class accord. to EN 55011 and EN 55022
Conducted 0.15 – 30 MHz Radiated 30 – 1000 MHz
BQ
B
A
48Q /CQ
B
A
DQ
A
A
EQ
A
A
GQ
B
A
EN 55011 B
60
20
0
All conducted emissions (fig. 23) have been tested according
to IEC/EN 55022 (similar to EN 55011, much better values than
requested by EN 50121-3-2, table 3.1). The limits in fig. 23
apply to quasipeak values, which are always lower then peak
values.
In addition, the values for average must keep a limit 10 dBµV
below the limits in fig. 23 (not shown).
PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-07, 14:46 h
BQ1001-7R V104, Ui=24 V, Uo=5.1 V, Io= 16 A, decoupled load
JM021
40
Note: Outputs lines decoupled with ferrite cores allow compliance
with class B for radiated emissions.
dBµV
80
PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-05, 15:15 h
EQ2660-7R V102, Ui=110 V, Uo=24 V Io= 4 A, decoupled load
0.2
1
2
5
10
Radiated emissions have been tested according to IEC/EN
55011 (similar to EN 55022), as requested in EN 50121-3-2,
table 6.1. The test is executed with horizontal and vertical
polarization. The worse result is shown in fig. 24.
TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2009-04-21
Testdistance 10 m, BQ2660-7R V104, Ui=24 V, Uo=24 V Io= 4.4 A
50
EN 55022 B
60
20 MHz
Fig. 23c
Conducted peak disturbances at the input: EQ2660-7R V102,
Vi nom , Io nom, outputs parallel connected, decoupled load lines
dBµV/m
JM019
0.5
EN 55011 A
40
JM022a
< 30 dB(µV/m)
30
40
20
20
10
0
,
0.2
0.5
1
2
5
10
20 MHz
Fig. 23a
Conducted peak disturbances at the input: BQ1001-7R V104,
Vi nom, Io nom, decoupled load lines
dBµV
80
PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-07, 15:38 h
CQ2320-7R V104, Ui=48 V, Uo=12 V Io= 8 A, decoupled load
0
30
100
200
60
1000 MHz
TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2009-04-17
Testdistance 10 m, EQ2660-7R V104, Ui=110 V, Uo=24 V Io= 4.4 A
50
EN 55022 B
500
Fig. 24a
Radiated disturbances in 10 m distance: BQ2660-7R V104,
Vi nom, Io nom
dBµV/m
JM020
50
EN 55011 A
40
JM023b
< 30 dB(µV/m)
30
40
20
20
10
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 23b
Conducted peak disturbances at the input: CQ2320-7R V104,
Vi nom, Io nom, outputs parallel connected, decoupled load lines
0
30
50
100
200
500
1000 MHz
Fig. 24b
Radiated disturbances in 10 m distance: EQ2660-7R V104,
Vi nom, Io nom
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Immunity to Environmental Conditions
Table 15: Mechanical and climatic stress
Test method
Standard
Test conditions
Cab
Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
Temperature:
Relative humidity:
Duration:
40 ±2 °C
93 +2/-3 %
56 days
Converter
not
operating
Status
Db
Damp heat test,
cyclic
EN 50155:2007, clause 12.2.5
IEC/EN 60068-2-30
Temperature:
Cycles (respiration effect):
Duration:
55 °C and 25 °C
2
2× 24 h
Converter
not
operating
Bd
Dry heat test
steady state
EN 50155:2007, clause 12.2.4
IEC/EN 60068-2-2
Temperature:
Duration:
70 °C
6h
Converter
operating
Ad
Cooling test
steady state
EN 50155:2007, clause 12.2.3
IEC/EN 60068-2-1
Temperature, duration
Performance test
–40 °C, 2 h
+25 °C
Conv. not
operating
--
Salt mist test
sodium chloride
(NaCl) solution
EN 50155:2007
sect. 12.2.10
class ST2
Temperature:
Duration:
35 ±2 °C
16 h
Converter
not
operating
Fc
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
Converter
operating
Frequency (1 Oct/min):
Test duration:
0.35 mm (10 – 60 Hz)
5 gn = 49 m/s2 (60 - 2000 Hz)
10 – 2000 Hz
7.5 h (2.5 h in each axis)
Fh
Random vibration
broad band
(digital control) and
guidance
IEC/EN 60068-2-64
Acceleration spectral density:
Frequency band:
Acceleration magnitude:
Test duration:
0.05 gn2 /Hz
8 – 500 Hz
4.9 gn rms
1.5 h (0.5 h in each axis)
Converter
operating
Eb
Bump
(half-sinusoidal)
IEC/EN 60068-2-29
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
25 gn = 245 m/s2
6 ms
6000 (1000 in each direction)
Converter
operating
Ea
Shock
(half-sinusoidal)
IEC/EN 60068-2-27
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
50 gn = 490 m/s2
11 ms
18 (3 in each direction)
Converter
operating
--
Shock
EN 50155:2007 sect. 12.2.11,
EN 61373 sect. 10,
class B, body mounted 1
Acceleration amplitude:
Bump duration:
Number of bumps:
5.1 gn
30 ms
18 (3 in each direction)
Converter
operating
--
Simulated long life
testing at
increased random
vibration levels
EN 50155:2007 sect. 12.2.11,
EN 61373 sect. 8 and 9,
class B, body mounted 1
Acceleration spectral density:
Frequency band:
Acceleration magnitude:
Test duration:
0.02 g n2 /Hz
5 – 150 Hz
0.8 gn r ms
15 h (5 h in each axis)
Converter
operating
1
Body mounted = chassis of a railway coach
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Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Temperatures
Table 16: Temperature specifications, valid for an air pressure of 800 - 1200 hPa (800 - 1200 mbar)
Temperature range
-2
Characteristics
TA
Ambient temperature
TC
Case temperature
TS
Storage temperature
1
2
Conditions
min
Converter operating
Non operational
typ
-7 (Option)
max
min
–10
50
–10
80
–25
100
typ
-9
typ
Unit
max
min
max
–25
711
–40
711
–25
951 2
–40
951 2
–40
100
–55
100
°C
See Thermal Considerations. Operation with Po max requires a reduction to TA max = 50 °C and TC max = 85 °C.
Overtemperature lockout at TC >95 °C (PTC).
Reliability
Table 17: MTBF and device hours
Ratings at specified
Models
Ground
benign
40 °C
40 °C
70 °C
Ground
mobile
50 °C
CQ1000
588 000
196 000
96 000
74 000
BQ1001-9R
EQ2660-9R
908 000
913 000
243 000
237 000
160 000
155 000
98 000
97 000
Case Temperature
MTBF according to
MIL-HDBK-217F
MTBF according to
MIL-HDBK-217F, notice 2
1
Ground fixed
Naval,
sheltered
40 °C
Device
hours 1
Unit
6 400 000
h
192 000
188 000
Statistical values, based on an average of 4300 working hours per year and in general field use over 5 years; upgrades and customerinduced errors are excluded.
MELCHER
BCD20011-G Rev AI, 13-Apr-2016
The Power Partners.
Page 22 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Mechanical Data
The converters are designed to be
inserted into a 19" rack according to
IEC 60297-3. Dimensions are in mm.
20.3
H
A
G
F
B
E
C
European
Projection
Key Code System
D
(5.5)
pin 4
Front plate
Front plate
104
20
20
09066h
Mainface
60
104
100
59.23
LED "In-OK" green1
Potentiometer (option P)
Test sockets1
LED "Out-OK" green
1
Standard
Opt. B1
**) 231.0 ...231.9 mm
for long case
(add 5000 to the
part number)
*) 32.3 mm for opt. B
= ∅ 4.2
= ∅ 3.4
=∅3
19.8
72.87
65.35
84.3
77.95
95
6.4
38.8 *)
19.8
111
8.14
11.44
Rearface
Back plate
13.43
20.32 (4 TE)
Fig. 25
Case Q 01,
weight approx. 500 g;
aluminum, fully
enclosed,
black finish, and self
cooling
Rearface
160.3
AIRFLOW
171.0 ... 171.9 **)
Measuring point of
case temperature TC
127
(164)
105
M3; 4 deep
Not fitted to 48Q models
Notes:
Long case, elongated by 60 mm for 220 mm rack depth is
available on request. Add 5000 to the standard part number.
An additional heat sink (option B1) is available; it reduces the case
temperature TC, and allows more output power at higher ambient
temperature TA.
MELCHER
BCD20011-G Rev AI, 13-Apr-2016
The Power Partners.
Page 23 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Safety and Installation Instructions
Connector Pin Allocation
The connector pin allocation table defines the electrical
potentials and the physical pin positions on the H15 connector.
Pin no. 26, the protective earth pin, is a leading pin, ensuring
that it makes contact with the female connector first.
Table 18: Pin allocation of the H15 connector
Electrical determination
Q1000
Q2000
4
Output voltage (positive)
Vo+
Vo1+
6
Output voltage (positive)
Vo+
Vo2+
8
Output voltage (negative)
Vo–
Vo1–
10
Output voltage (negative)
Vo–
Vo2–
1
2
3
12
Sense line (positive)
S+
S+
14
Sense line (negative) 2
S–
S–
16
Output voltage adjust
1
R1
R1
18
Current sharing control
T
T
20
Do not connect (internal Gnd.)
--
--
22
Output good signal (positive)
Out-OK+
Out-OK +
24
Output good signal (negative)
Out-OK–
Out-OK –
i
i
2
26
Protective earth PE
28
Inhibit control input 3
30
Input voltage (positive)
Vi+
Vi+
32
Input voltage (negative)
Vi–
Vi–
26
22
18
14
10
• If the inhibit function is not used, pin 28 (i) must be connected
with pin 32 (Vi–) to enable the output(s).
• Long input, output and auxiliary lines, or lines with inductors,
filters or coupling/decoupling networks may cause instabilities.
See Input Stability with Long Supply Lines.
Due to high output currents, the Q1001/1101 models offer two
internally parallel-connected contacts for both, the positive and
the negative output path (pins 4/6 and pins 8/10). It is
recommended to connect the load to both female connector
pins of each path in order to keep the voltage drop to a
minimum.
Make sure that there is sufficient air flow available for
convection cooling. This should be verified by measuring the
case temperature when the converter is installed and operated
in the end-user application. The maximum specified case
temperature TC max shall not be exceeded. See also Thermal
Considerations.
Ensure that a converter failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also Safety of
Operator-Accessible Output Circuits.
Cleaning Liquids and Protection Degree
Do not connect pin 16 for models with 3.3 V output or with opt. P !
Leading pin (pre-connecting).
If not actively used, connect with pin 32.
30
Important:
• Do not open the converters, or warranty will be invalidated.
Pin
2
option F). This fuse is designed to protect in case of
overcurrent and may not be able to satisfy all customer
requirements. External fuses in the wiring to one or both input
pins (no. 30 and/or no. 32) may be necessary to ensure
compliance with local requirements.
In order to avoid possible damage, any penetration of cleaning
fluids must be prevented, since the power supplies are not
hermetically sealed.
Protection degree (female connector fitted to the converter):
6
• IP 30: All models, except those with option P (potentiometer)
• IP 20: All models with option P.
32
28
24
20
16
12
8
4
Standards and Approvals
10025a
Fig. 26
View of male H15 connector
The Q Series converters correspond to class I equipment.
They are safety-approved to UL/CSA 60950-1 and IEC/EN
60950-1 2nd Edition.
Installation Instructions
The converters have been evaluated for:
The Q Series converters are components, intended exclusively
for inclusion within other equipment by an industrial assembly
operation or by professional installers. Installation must strictly
follow the national safety regulations in compliance to
enclosure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Connection to the system shall be made via the female
connector H15 (see Accessories). Other installation methods
may not meet the safety requirements.
The Q Series converters are provided with pin 26 ( ), which is
reliably connected to the case. For safety reasons it is essential
to connect this pin to protective earth; see Safety of OperatorAccessible Output Circuits.
The Vi– input (pin 32) is internally fused (except converters with
• Building in
• Basic insulation between input and case and double or
reinforced insulation between input and output, based on
their maximum rated input voltage
• Basic insulation between Out-OK and case, and double or
reinforced insulation between Out-OK and input and
between Out-OK and output, based on their maximum rated
input voltage
• Functional insulation between outputs and output to case
• Use in a pollution degree 2 environment
• Connecting the input to a circuit, which is subject to a
maximum transient rating of 1500 V.
CB Scheme is available.
MELCHER
BCD20011-G Rev AI, 13-Apr-2016
The Power Partners.
Page 24 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 19: Isolation
Characteristic
Electric
strength
tests
Input to
case + output(s)
Output(s) to
case
Output
to output
Out-OK to
case + input
Out-OK
to output(s)
Unit
Factory test ≥1 s
2.1 1
2.1
0.5*
2.1 1
2.1 1
kVDC
AC test voltage equivalent
to factory test
1.5 1
1.5
0.35*
1.5 1
1.5 1
kVAC
>300 2
>300 2
>100
>300 2
>300 2
1.4 3
1.4
Insulation resistance
Minimum creepage distances
MΩ
mm
* Models with version V104 or higher. Older converters have only been tested with 0.3 kVDC.
1 In accordance with EN 50116 and IEC/EN 60950, subassemblies connecting input to output are pre-tested with 4.2 kVDC.
2 Tested at 500 VDC.
3 2.8 mm between input and output.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards and with ISO
9001:2008.
test according to EN 50514 and IEC/EN 60950. The company
will not honor warranty claims resulting from incorrectly
executed electric strength field tests. The resistance of the
earth connection to the case (<0.1 Ω) is tested as well.
Railway Applications
The converters have been designed observing the railway
standards EN 50155:2007 and EN 50121-3-2:2006. All boards
are coated with a protective lacquer.
The Q Series converters have been certified to the fire
protection class S1 according to DIN 5510-2:2007.
All models with version V106 (or later) comply with EN 45545,
HL1 to HL3. They also comply with NF-F-16, Class I3/F2.
Isolation
The electric strength test is performed in the factory as routine
Safety of Operator-Accessible Output Circuits
If the output circuit of a DC-DC converter is operatoraccessible, it shall be an SELV circuit according to IEC 60950.
Table 21 shows some possible installation configurations,
compliance with which causes the output circuit of the DC-DC
converter to be SELV up to a configured output voltage (sum of
nominal voltages, if in series configuration) of 35 V.
However, it is the sole responsibility of the installer to ensure
the compliance with the relevant and applicable safety
regulations.
Description of Options
Option -7: Temperature Range
Option P: Output Voltage Adjustment
Option -7 designates converters with an operational ambient
temperature range of – 25 to 71 °C. Not for new designs.
Option P provides a built-in multi-turn potentiometer, which
allows an output voltage adjustment of ±10% of Vo nom. The
potentiometer is accessible through a hole in the front cover.
Option B, B1: Additional Heat Sink
With double-output models, both outputs are affected by the
potentiometer. If converters are parallel-connected, their individual output voltage should be set within a tolerance of ±1%.
If Vo is set higher than Vo nom, the output currents should be
reduced accordingly, so that the maximum specified output
power is not exceeded.
~
Mains
~
10026
Fuse
AC-DC
front
end
+
Battery
Fuse
Earth
connection
DC-DC
converter
Earth
connection
Thickness: 12.5 mm (opt. B) or 20 mm (opt. B1)
Table 20:Thermal resistance case to ambient (approx. values)
Case
Standard (160 mm long)
Case 220 mm long 1 2
Option B
Option B1
+
1
Suppressor
diode
SELV
2
–
Thermal resistance
1.6 K/W
1.4 K/W
1.45 K/W
1.4 K/W
Thickness of case
<
<
<
<
20
20
33
40
mm
mm
mm
mm
As well available with an additional heat sink
Customer-specific models. Add 5000 to the part number!
Option F:
No internal fuse. The installer must use an appropriate external
fuse of circuit breaker.
Earth
connection
Fig. 27
Schematic safety concept
Fuse, suppressor diode and earth connections as per table 21.
Option non-G:
Leaded solder used (not RoHS-compliant for all 6 substances).
MELCHER
BCD20011-G Rev AI, 13-Apr-2016
The Power Partners.
Page 25 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Table 21: Safety concept leading to an SELV output circuit
Conditions Front end
DC-DC converter
Result
Nominal
supply
voltage
Minimum required grade
of insolation, to be provided by the AC-DC front
end, including mainssupplied battery charger
Maximum DC
output voltage
from the front
end 1
Minimum required
safety status of the
front end output
circuit
Types
Measures required to achieve
the specified safety status of
the output circuit
Safety status
of the DC-DC
converter
output
circuit
Mains
≤150 VAC
Functional (i.e. there is
no need for electrical isolation between the mains
supply circuit and the
DC-DC converter input
circuit)
≤150 V 2
Primary circuit
DQ
EQ
Double or reinforced insulation, based on 150 VAC and
DC (provided by the converter) and earthed case 3
SELV circuit
Basic
≤60 V
ELV circuit
BQ, GQ
48Q
CQ
Supplementary insulation,
based on 150 VAC (provided
by the DC-DC converter)
and earthed case 3
≤75 V
Hazardous voltage
secondary circuit
48Q
CQ
Supplementary insulation,
based on 150 VAC and
double or reinforced insulation 4 (both provided by the
DC-DC converter) and
earthed case 3
≤ 60 V
Earthed SELV
circuit 3
BQ, GQ Functional insulation (provided
48Q, CQ by the converter)
Mains
≤ 250 VAC
ELV circuit
Double or reinforced
3
4
5
6
7
SELV circuit
Unearthed
hazardous voltage
secondary circuit
48Q
CQ
≤150 V 2
Earthed hazardous
voltage secondary
circuit 3 or earthed
ELV circuit 3
BQ, GQ
48Q, CQ
DQ
EQ
Double or reinforced
insulation 4 (provided by
the converter)
and earthed case 3
Unearthed
hazardous voltage
secondary circuit
DQ
EQ
Supplementary insulation, based on 250 VAC and double
or reinforced insulation 4 (both
provided by the converter)
and earthed case 3
SELV circuit
BQ, 48Q Functional insulation (proviCQ, GQ ded by the converter)
TNV-2 circuit
48Q, CQ Basic insulation 4 (provided
DQ
by the converter)
EQ
≤ 60 V
≤150 V
2
Earthed
SELV circuit
≤ 75 V
≤120 V
1
Input fuse 5, output suppressor
diodes 6, earthed output
circuit 3 and earthed 3 or non
user-accessible case
2
Double or re-inforced insulated unearthed hazardous
voltage secondary
circuit 7
The front end output voltage should match the specified input voltage range of the DC-DC converter.
The maximum rated input voltage of EQ models acc. to IEC/EN 60950 is 150 V. Power-One specifies the tolerance as +12% (max. 168 V)
The earth connection has to be provided by the installer according to IEC/EN 60950.
Based on the maximum rated output voltage provided by the front end.
The installer shall provide an approved fuse with the lowest rating suitable for the application in a non-earthed input conductor directly at the
input of the DC-DC converter (see fig. Schematic safety concept). For UL’s purposes, the fuse needs to be UL-listed.
Each suppressor diode should be dimensioned such that in the case of an insulation fault the diode is able to limit the output voltage to
SELV (<60 V), until the input fuse blows (see fig. Schematic safety concept).
Has to be insulated from earth according to IEC/EN 60950, by at least supplementary insulation, based on the maximum nominal output
voltage from the front end.
MELCHER
BCD20011-G Rev AI, 13-Apr-2016
The Power Partners.
Page 26 of 27
Q Series Data Sheet
66 – 132 Watt DC-DC Converters
Accessories
A wide variety of electrical and mechanical accessories are
available:
• Various mating connectors including fast-on, screw,
solder, or press-fit terminals, code key system
• Connector retention brackets HZZ01217-G (CRB-Q)
• Cable connector housings (cable hoods) HZZ00141-G,
also available with fixation HZZ00142-G, and metallic
cable hood HZZ00143-G.
• Front panels system Schroff, for 19" rack 3 U configuration
4 TE (G04-Q01), 5 TE (G05-Q01), or 6 TE (G06-Q01)
• Front panels system Schroff, for 19" rack 6 U configuration
width 5 TE, including a support angel, Kit G05-6HE-Q01
(HZZ00838)
• Mounting plate Q for wall mounting HZZ01215-G, with
optional connector retention clips HZZ01209-G
• Brackets for DIN-rail mounting UMB-LHMQ (HZZ00610-G)
• Additional external input and output filters
System kit for
19" rack, 6U
HZZ00838
• Battery sensor [S-KSMH...] for using the converter as
battery charger. Different cell characteristics can be
selected.
For additional accessory product information, see the
accessory data sheets listed with each product series or
individual model at our website.
H15 female connector,
code key system
Connector
retention
bracket
CRB-Q
Mounting plate Q
for wall mounting
HZZ01215-G with
fitted connector
retention clips
HZZ01209-G
Brackets for DINrail and chassis
mounting
Mounting plate HZZ01227-G
with fitted metallic cable hood
with fastening screws
NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
Copyright © 2015, Bel Power Solutions Inc. All rights reserved.
www.belpowersolutions.com/power
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Page 27 of 27
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