NDY Series www.murata-ps.com Isolated 3W Wide Input DC/DC Converters

NDY Series www.murata-ps.com Isolated 3W Wide Input DC/DC Converters
NDY Series
www.murata-ps.com
Isolated 3W Wide Input DC/DC Converters
SELECTION GUIDE
Order Code
FEATURES
„
UL 60950 recognized
„
RoHS compliant
„
Industry standard footprint
„
Efficiency to 82%
„
Power density 0.90W/cm3
„
2:1 wide input range
„
Single isolated output
„
Short circuit protection
NDY0505C
NDY0509C
NDY0512C
NDY0515C
NDY1205C
NDY1209C
NDY1212C
NDY1215C
NDY2403C
NDY2405C
NDY2409C
NDY2412C
NDY2415C
NDY4803C
NDY4805C
NDY4809C
NDY4812C
NDY4815C
Nominal
Input
Voltage
V (nom.)
Rated
Output
Voltage
V
Min. Load
mA
mA
5
5
5
5
12
12
12
12
24
24
24
24
24
48
48
48
48
48
5
9
12
15
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
100-150
55-83
42-62
33-50
150
83
62
50
227
150
83
62
50
227
150
83
62
50
400-600
222-333
166-250
133-200
600
333
250
200
909
600
333
250
200
909
600
333
250
200
Output Current 1
Full Load
Input
Efficiency 2
Isolation
Current
MTTF 3
(Min.)
Capacitance
Full load
mA
%
pF
kHrs
615
563
548
533
362
320
316
308
178
174
156
154
150
87
87
78
77
76
66
72
71
73
71
78
78
79
70
70
78
80
82
71
73
80
81
81
40
52
43
44
36
52
44
47
30
36
52
44
54
30
35
52
44
53
1939
1926
1907
1924
1928
1916
1897
1914
1671
1673
1663
1644
1657
1676
1668
1663
1648
1661
„
Low profile 24 pin case
„
UL 94V-0 package material
„
Operating temperature range -40ºC to 85ºC
„
No heatsink required
INPUT CHARACTERISTICS
Parameter
Voltage range
„
Footprint 4.73cm2
„
5V, 12V, 24V & 48V input
„
3.3V, 5V, 9V, 12V & 15V output
„
Internal SMD construction
„
Fully encapsulated
DESCRIPTION
The NDY series is a range of low profile DC/DC
converters offering a single regulated output over a
2:1 input voltage range. All parts deliver 3W output
power up to 85ºC without heatsinking, except the
4.5V to 9V input voltage range which should be
derated to 2W at the lower input voltage. A flyback
oscillator design with isolated feedback is used to
give regulation over the full operating range of 25%
to 100% of full load. It is strongly recommended
that external capacitors be used on input and
output to guarantee performance over full load and
input voltage range.
Reflected ripple current 2
Conditions
Min.
Typ.
Max.
All NDY05XX
All NDY12XX
All NDY24XX
All NDY48XX
NDY2403
NDY4803
All NDY05XX
All NDY12XX
All other NDY24XX
All other NDY48XX
4.5
9
18
36
5
12
24
48
180
140
400
150
290
100
9
18
36
72
360
290
500
170
360
127
Units
VDC
mA p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1.5mm from case for 10 seconds
Minimum load
Input voltage 05 types
Input voltage 12 types
Input voltage 24 types
Input voltage 48 types
Internal dissipation
Continuous
300°C
25% of rated load
10V
20V
40V
80V
1.7W
1. Refer to power derating graph.
2. Measured at full load with external input/output capacitors, refer to filter circuit 1.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NDY.F02 Page 1 of 4
NDY Series
Isolated 3W Wide Input DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter
Conditions
Voltage set point accuracy
With external input/output capacitors
Low line to high line, 3.3V output with external input/output capacitors
Low line to high line, all other outputs with external input/output capacitors
25% load to 100% load, 3.3V output with external input/output capacitors
25% load to 100% load, all other outputs with external input/output capacitors
BW = 20Hz to 300kHz, 3.3V output with external input/output capacitors
BW = 20Hz to 300kHz, all other outputs with external input/output capacitors
BW = DC to 100MHz, 3.3V output with external input/output capacitors
BW = DC to 20MHz, all other outputs with external input/output capacitors
Line regulation
Load regulation
Ripple1
Noise1
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching frequency
100% load VIN nominal 3.3V output
25% load VIN nominal 3.3V output
100% load VIN nominal, all other outputs
25% load VIN nominal, all other outputs
Min.
Min.
Typ.
Max.
Units
±1
0.05
0.05
0.6
0.2
80
5
%
%
%
%
%
50
±5
0.25
0.5
1.0
0.5
120
10
180
100
Typ.
Max.
Units
220
560
220
560
kHz
Max.
Units
85
130
ºC
Max.
Units
160
290
80
290
mV rms
mV p-p
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Operation
Storage
Cooling
Ambient temperature
-40
-50
Typ.
Free air convection
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Isolation test voltage
Resistance
Flash tested for 1 second
Viso=500VDC
1000
1
Typ.
VDC
GΩ
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NDY series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NDY series has been recognized by Underwriters Laboratory for functional isolation. Both input and output should normally be maintained within SELV limits i.e. less than 42.4V
peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier
must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according
to safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NDY series has an EI ferrite core, with no additional insulation between primary and secondary windings of enameled wire. While parts can be
expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane)
is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly
advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
SAFETY APPROVAL
The NDY series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation for a maximum case temperature limit of 130ºC (case temperature
measured on the face opposite the pins). File number E179522 applies.
Note: This series gained UL 60950 recognition for products manufactured on or after datecode G1123, any NDY parts manufactured before this date code should not be considered
UL 60950 recognized. Any NDY that is UL recognized will be printed with the UL logo.
1. For lower ripple refer to circuit for reduced ripple.
www.murata-ps.com/support
KDC_NDY.F02 Page 2 of 4
NDY Series
Isolated 3W Wide Input DC/DC Converters
APPLICATION NOTES
Recommended input & output capacitors
Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load
range. All parts have been tested and characterized using the following values and test circuit.
Input Voltage
5V, 12V
24V, 48V
CIN
100μF, 25V (0.25Ω at 100KHz)
10μF, 100V (1.5Ω at 100KHz)
Output Voltage
3.3V
5V, 12V, 15V
COUT
100μF, 25V (0.25Ω at 100KHz)
LOUT
MPS# - 24100C
Not required
Test circuit, 5V, 12V and 15V output
+ VOUT
+ VIN
CIN
NDY
COUT
- VOUT
- VIN
Recommended circuit for reduced ripple 3.3V output
LOUT
+ VOUT
+ VIN
CIN
NDY
COUT
- VOUT
- VIN
Output load
The minimum rated load across the whole input voltage range is 25% of the full load output. It is important to take care that the load does not fall below this as the output ripple
will greatly increase. While this condition will not harm the device the resultant increase in output ripple could cause customers’ application to malfunction.
Output Power (W)
NDY05 POWER DERATING CURVE
5
RoHS COMPLIANCE INFORMATION
4
This series is compatible with RoHS soldering
systems with a peak wave solder temperature of
300ºC for 10 seconds. The pin termination finish
on this product series is Bright Tin. The series
is backward compatible with Sn/Pb soldering
systems.
3
2
1
0
4.5 5
6
7
Input voltage (V)
8
9
For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NDY.F02 Page 3 of 4
NDY Series
Isolated 3W Wide Input DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
PIN CONNECTIONS (TOP VIEW)
32.26
(1.27)
14.66
(0.577)
7*/
7*/
NDY4815C
XYYWW
7.00
(0.276)
5.00 (0.197)
4.00 (0.157)
0.84 (0.033)
0.54 (0.021)
2.54
(0.10)
7065
7065
7065
7065
7*/
7*/
RECOMMENDED FOOTPRINT DETAILS
27.94
(1.10)
1.45 (0.057)
Ø 1.30
(0.051)
2.54 (0.10)
0.30 (0.012)
0.20 (0.008)
16.35
(0.644) MAX
2.54
(0.10)
Weight: 6.2g (3.3V: 6.7g)
Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.01).
All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within ± 0.25 (0.01) of true position.
TUBE OUTLINE DIMENSIONS
20.70±0.55 (0.815±0.022)
16.70±0.80 (0.657±0.031)
11.70±0.80 (0.461±0.031)
5.50±0.25 (0.217±0.010)
16.70±0.55 (0.657±0.022)
0.268±0.022 (6.80±0.55)
0.60±0.15 (0.024±0.006)
Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.01).
Tube length : 520mm ±2mm (20.47±0.079).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Tube Quantity : 15
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
KDC_NDY.F02 Page 4 of 4
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Murata:
NDY0505 NDY0509 NDY0512 NDY0515 NDY1205 NDY1209 NDY1212 NDY1215 NDY2403 NDY2405
NDY2409 NDY2412 NDY2415 NDY4803 NDY4805 NDY4809 NDY4812 NDY4815 NDY1209C NDY4812C
NDY0515C NDY2409C NDY4815C NDY0505C NDY2415C NDY0509C NDY4809C NDY1212C NDY2403C
NDY0512C NDY1205C NDY2412C NDY4803C NDY2405C NDY4805C NDY1215C
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