UM10953 - NXP Semiconductors

UM10953 - NXP Semiconductors
UM10953
SSL5511DB1399 - 35 W, universal mains, PWM/0 V to 10 V
dimmable LED driver
Rev. 1 — 12 January 2016
User manual
Document information
Info
Content
Keywords
SSL5511DB1399, SSL5511T, SSL5101T, flyback converter, high Power
Factor (PF), high efficiency, low Total Harmonic Distortion (THD),
universal mains, analog/Pulse Width Modulation (PWM) dimmable
Abstract
This document describes the operation of the SSL5511DB1399 35 W LED
driver demo board featuring SSL5511T and using an isolated flyback
topology. The SSL5511DB1399 demo board is designed for both
dimmable and non-dimmable applications. It is intended for fixtures in
Solid State Lighting (SSL) applications.
UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Revision history
Rev
Date
Description
v.1
20160112
first issue
Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
UM10953
User manual
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Rev. 1 — 12 January 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
1. Introduction
WARNING
Lethal voltage and fire ignition hazard
The non-insulated high voltages that are present when operating this product, constitute a
risk of electric shock, personal injury, death and/or ignition of fire.
This product is intended for evaluation purposes only. It shall be operated in a designated test
area by personnel qualified according to local requirements and labor laws to work with
non-insulated mains voltages and high-voltage circuits. This product shall never be operated
unattended.
This user manual describes the operation of the SSL5511DB1399 demo board featuring
the SSL LED driver SSL5511T in a 35 W isolated application for universal mains.
The SSL5511DB1399 demo board is designed for 50 V at a 700 mA LED string load.
The single layer PCB with dimensions 110 mm 50 mm  30 mm is intended for fixtures
used in SSL applications.
The SSL5511DB1399 demo board provides a simple and effective solution for a universal
mains application. It includes a high Power Factor (PF), high efficiency, and a low Total
Harmonic Distortion (THD).
The topology uses a single stage flyback converter without Power Factor Correction
(PFC) pre-stage.
1.1 Features
•
•
•
•
•
•
•
•
•
•
•
•
SSL5511T LED driver
Single stage flyback converter without PFC pre-stage
Analog (0 V to 10 V) dimming interface or PWM dimming
High efficiencies maintained for 50 % and 25 % loads
Open LED string protection
Short circuit LED string protection
OverCurrent Protection (OCP)
OverTemperature Protection (OTP)
Power factor > 0.95
THD < 10 % for 120 V (AC) to 230 V (AC)
Efficiency ranging from 88 % to 90 % across the universal mains 90 V to 305 V (AC)
Minimal changes required in application for a non-dimmable design using the
SSL5101T
• Compliant with IEC61000-3-2 harmonics standard
• Compliant with FCC15 EMC standard
Figure 2 shows the assembled top and bottom board views.
UM10953
User manual
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Rev. 1 — 12 January 2016
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
2. Safety warning
The board must be connected to mains voltage. Avoid touching the demo board while it is
connected to the mains voltage. An isolated housing is obligatory when used in
uncontrolled, non-laboratory environments. Galvanic isolation of the mains phase using a
variable transformer is always recommended. Figure 1 shows the symbols that identify
the isolated and non-isolated devices.
019aab174
019aab173
a. Isolated
Fig 1.
b. Not isolated
Isolation symbols
3. Specifications
Table 1.
UM10953
User manual
SSL5511DB1399 demo board specifications
Symbol
Parameter
Value
Vmains
AC mains voltage supply
90 V to 305 V
Pi
input power
39 W
Po
output power
32 W to 38 W; nominal = 35 W
VLED
output voltage (LED voltage)
26 V to 55 V; nominal = 50 V
ILED
output current (LED current)
650 mA to 750 mA;
nominal = 700 mA
Iripple
output ripple current
±30 %
ILED/Vmains
line regulation
<1%
ILED/VLED
load regulation
< 1.5 mA/V

efficiency
100 % load
88 % to 91 %
50 % load
> 87 %
25 % load
> 85 %
PF
power factor
> 0.97
THD
total harmonic distortion
< 10 %
fsw
switching frequency
40 kHz to 70 kHz
PCB dimensions
LWH
110 mm  50 mm  30 mm
OVP[1]
OverVoltage Protection or
open-string protection
VLED > 55 V
OSP[2]
Output Short Protection (OSP)
VLED = 0 V
[1]
OVP is a latched protection. It is valid during start-up or during operation when no LEDs are connected.
[2]
OSP is valid if an output short event of the LEDs occurs during start-up or during operation.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 12 January 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
4 of 26
UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
4. Board photographs
a. Top view
b. Bottom view
Fig 2.
UM10953
User manual
SSL5511DB1399 35 W panel demo board
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Rev. 1 — 12 January 2016
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
5. Board connections
The SSL5511DB1399 demo board is supplied using a universal mains voltage. Figure 3
shows the board connections.
Table 2.
Input and output connections
Figure 7 (top view) shows the connectors.
Connector
Function
Comment
CN1
universal mains
live and neutral between pins 1,
2 of CN1
CN3
LED load
pin 2 of CN3 to + LED load
pin 1 of CN3 to - LED load
CN50
0 V to 10 V DIM input DC
voltage
JP1
analog/PWM dimming selection short 2, 3 for analog dim
pin 2 of CN50 is 10 V
PWM signal to 1, 2 for PWM
dim
short 1, 2 is minimum dim,
ILED = 0
do not leave pins 1, 2, and 3
open; default setting is to short
pins 2 and 3 for analog
dimming
JP2
for measurement purposes only during measurements on the
demo board using oscilloscope
probes; connect 10 V between
pins 2 and 3 of JP2; default is
to short pins 1 and 2
Remarks:
• Make all connections with the input mains supply switched off.
• Use a protective shield over the application. Never touch the board when measuring
or testing.
Connections and testing:
• Connect a 17-LED string load and a power meter at both inputs and outputs.
• Connect the universal mains to the input connection points of the flyback converter
using an isolating transformer (initially set to 0 V). Alternatively, use an AC power
supply with limited output current capability (for example, 500 mA).
• Set Vmains to the voltages as indicated in Table 3.
UM10953
User manual
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Rev. 1 — 12 January 2016
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Fig 3.
UM10953
User manual
SSL5511DB1399 demo board connections with 17-string LED load
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
6. Functional description
6.1 Input filtering
Common-mode and differential mode filters are implemented to reduce common-mode or
differential mode noise (see Figure 6). This noise originates from the HF switching
currents/voltages in the primary side of the converter from returning to the mains. The
common-mode filter is L1 (or L2), CY1, CY2, and CY3. The differential mode filter is L3
(including leakage of L1 or L2), C2, C3, CX1, and CX2. The noise is also kept to a
minimum by:
• Small primary current loop from C3 to pin 1 of T1, pin 3 of T1 to the drain of external
MOSFET Q1. Ground return from sense resistors R12, R13 back to ground of C3
• Snubber components D2, R6, R7, and C4 closely parallel to pins 1 and 3 of T1
• Track length from pin 3 of T1 to drain of external MOSFET to be small in order to
reduce capacitance to surroundings.
• Small secondary current loop from pin 10 of T1 to D8 and C10 and return to pin 9 of
T1
For this 35 W application, the value of capacitor C3 must be high enough to act as a buffer
for the HF currents flowing in the primary side through Lp of T1. It must be small enough to
maintain a high PF. A value of 330 nF gives good results.
6.2 Rmains detection (RMAINS pin)
For mains zero crossing detection, the SSL5511T uses a detection level of 22.5 A,
where the input current from the mains is derived from the mains input voltage via
resistors R1, R2, R3, R4 and R5.
The current into the RMAINS pin at the peak of the 230 V (AC) mains (325 V) is 330 A
typical when R1 + R3 = 510 k + 470 k and with resistor R5 = 0  and resistor
R8 = 0 .
The minimum mains voltage where zero crossing detection occurs every half-mains cycle
is:  510 k + 470 k   18 A .
To remove unwanted noise at low input voltage levels, extra external filtering on the
RMAINS pin is realized with C7 = 220 pF.
To prevent non-detection of the zero crossing, an additional circuit on the mains input is
included. However, this circuit is only required if measurements are carried out on the
demo board using oscilloscope probes. The circuit includes diodes D7 and D12, resistors
R22, R23, R24, and R25, capacitor C15, and transistor Q3. It is operational if 10 V is
supplied externally to header JP2.
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
6.3 Supply voltage
The SSL5511Tsupply voltage (VCC) is generated using an auxiliary winding and a
regulator circuit consisting of transistor Q2, resistor R21, diode D9, and capacitors C14
and C6. VCC is set to 26 V.
OverVoltage Protection (OVP) is triggered for an output LED voltage which exceeds 55 V
corresponding to VCC > 28 V. Zener diode 4 in the application determines the trigger level.
It is a latched protection.
During low-analog/PWM dimming, VCC remains above VCC(low), preventing that the
internal JFET is enabled. The advantage is that there is no flicker artifacts at low dimming.
UnderVoltage LockOut (UVLO) is reached when VCC < VCC(stop) (maximum 10 V).
6.4 Dimming interface
For analog dimming, a voltage of 0 V to10 V can be supplied to the CN50 connector on
the secondary side. The DC voltage is transferred to the primary side via an isolated
coupled inductor (L50). An AC current source, derived from the auxiliary winding and
coupled to pin 1 of L50 via resistor R51 and capacitor C51, is required. Capacitor C52
gives extra high-frequency filtering due to leakage of transformer. The result is the
reduction of any rest DC voltage on capacitor C53 for low dimming voltage at CN50. The
DC voltage on C53 is buffered with Q50 and attenuated to reach dimming levels < 5 %.
A 10 k potentiometer can be connected between pins 1 and 2 of CN50 for analog
dimming.
For analog dimming, pins 2 and 3 of JP1 are shorted.
For PWM dimming, a PWM signal is supplied between pins 1 and 2 of JP1. For example,
the PWM signal can be a 0 V to 5 V, 1 kHz signal with a duty cycle variation between
1 % and 99 %. This input has no galvanic isolation regarding the mains line voltage.
6.5 Output capacitor and filtering
A provision for RC snubber across the secondary diode has been made on Printed-Circuit
Board (PCB).
The RC snubber is not mounted on the SSL5511DB1399 demo board, because it is not
required for this board. If necessary, it can improve the high-frequency EMI performance.
However, depending on the values chosen for R18, R19 and C9, the overall system
efficiency decreases.
The output capacitors C10 and C11 (470 F) have been chosen to have Iripple < 30 %. The
ripple can be decreased to < 15 % when capacitors C10 and C11 are 2  1000 F.
When the demo board is not operational, resistor R20 discharges capacitors C10 and
C11.
Extra differential and common-mode filtering at the LED output is realized using inductor
L5 and capacitors C12 and C13.
UM10953
User manual
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Rev. 1 — 12 January 2016
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
7. Performance
7.1 SSL5511DB1399 demo board performance
Table 3.
SSL5511DB1399 demo board performance
Vmains (V)
Imains (mA)
Pi (W)
VLED (V)
ILED (mA)
PLED (W)
PF
THD (%)
 (%)
100
420
40
51
679
35
0.95
10
88
120
340
39
51
681
35
0.97
9.5
89
230
175
39
51
687
35
0.97
7.5
91
277
145
39
51
689
35
0.95
9.5
91
7.2 HD, PF, and efficiency performance
ILED = 700 mA for 100 % load.
Table 4.
Performance for universal mains
ILED
THD (%)
PF
Efficiency (%)
700 mA (100 %)
10
0.97
> 88
350 mA (50 %)
15
0.92
> 88
175 mA (25 %)
20
0.85
> 85
7.3 ElectroMagnetic Interference (EMI)
a. Vmains = 120 V
Fig 4.
b. Vmains = 230 V
EMI performance
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
7.4 Dim curve
DDD
,/('
P$
9',09
a. Analog
DDD
,/('
P$
3:0GXW\F\FOH
b. PWM
Fig 5.
Dimming curves
8. Schematic
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User manual
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NXP Semiconductors
UM10953
User manual
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SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Rev. 1 — 12 January 2016
All information provided in this document is subject to legal disclaimers.
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
9. Bill of Materials (BOM)
Table 5.
SSL5511DB1399 demo board bill of materials
Reference
Description and values
Part number
Manufacturer
BD1
bridge rectifier; 600 V; 800 mA
B6S-G
Comchip Tech
C1
capacitor; 150 nF; 5 %; 450 V; PET;
THT
ECWF2W154JAQ
Panasonic
C2
capacitor; 47 nF; 10 %; 630 V; PET;
THT
ECQE6473JF
Panasonic
C3
capacitor; 330 nF; 10 %; 450 V; PET;
THT
ECWFD2W334KQ
Panasonic
C4
capacitor; 22 nF; 10 %; 250 V; PET;
THT
ECQE2223JF
Panasonic
C5
capacitor; 100 nF; 10 %; 50 V; X7R;
0603
C0603C104K5RAC
KEMET
C6
capacitor; 22 F; 20 %; 50 V; ALU; THT ECA1HAK220X
Panasonic
C7
capacitor; 220 pF; 10 %; 50 V; X7R;
0805
-
-
C9
capacitor; not mounted; 220 nF; 10 %;
50 V (AC); X7R; 0805X2
ECQE2103JF
Panasonic
C10; C11
capacitor; 470 F; 20 %; 63 V; ALU;
THT
ECA1JAM471X
Panasonic
C12; C13
capacitor; 100 nF; 10 %; 100 V; X7R;
0603
GRM188R72A104KA35D
Murata
C14
capacitor; 1 F; 20 %; 100 V; ALU; THT
ECA2AM010
Panasonic
C15
capacitor; 100 nF; 10 %; 50 V; X7R;
0603
C0603C104K5RACTU
KEMET
C50; C54
capacitor; 100 nF; 10 %; 50 V; X7R;
0603
C0603C104K5RAC
KEMET
C51
capacitor; 100 nF; 10 %; 200 V; X7R;
1206
C1206C104K2RAC
KEMET
C52
capacitor; 100 pF; 10 %; 50 V; X7R;
0603
-
-
C53
capacitor; 220 nF; 10 %; 50 V; X7R;
0603
-
-
CN1
connector; mains inlet
CTB2202/2
Camdenboss
CN3
connector; terminal block; 5.08 mm
PM5.08/2/90 BLK
Weidmüller
CN50
connector; terminal block; not mounted; PM5.08/2/90 BLK
5.08 mm
Weidmüller
CX1: CX2
capacitor; 100 nF; 20 %; 310 V (AC);
PET; THT
BFC233820104
Vishay
CY1; CY2
capacitor; not mounted; 100 pF; 10 %;
300 V (AC); Y5S; THT
VY2101K29Y5SG63V7
Vishay
CY3
capacitor; 2.2 nF; 20 %; 300 V (AC);
VY2; THT
VY2222M35Y5US6TV7
Vishay
D1
diode; TVS; unidirectional; 440 V;
600 mA
SMAJ440A
Littelfuse
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UM10953
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SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Table 5.
SSL5511DB1399 demo board bill of materials
Reference
Description and values
Part number
Manufacturer
D2
diode; 600 V; 1 A
ES1J
Fairchild
D3
diode; 300 V; 200 mA
BAS21J
NXP Semiconductors
D4
diode; Zener; 27 V; 250 mA
BZX384-C27
NXP Semiconductors
D5
diode; 100 V; 250 mA
BAS316
NXP Semiconductors
D6
diode; TV5; not mounted; 44 V; 5 A
PESD15VL1BA
NXP Semiconductors
D7
diode; 420 V; 1 A
S1JL
Taiwan Semiconductor
D8
diode; 200 V; 8 A
BYW29EX-200
NXP Semiconductors
D9
diode; Zener; 27 V; 250 mA
BZX384-C27
NXP Semiconductors
D10; D11
diode; Zener; not mounted; 220 V;
3.25 W
BZT03C220
NXP Semiconductors
D12
diode; 420 V; 1 A
S1JL
Taiwan Semiconductor
D50
diode; Zener; 12 V; 250 mA
BZX384-C12
NXP Semiconductors
D51; D52
diode; 100 V; 250 mA
BAS316
NXP Semiconductors
D53
diode; Zener; 5.6 V; 300 mA
BZX384-C5V6
NXP Semiconductors
F1
fuse; 2 A; slow-blow
SS-5H-2A-APH
Cooper Bussmann
JP1; JP2
header; straight; 1  3-way; 2.54 mm
22-28-4030
Molex
L1
inductor; common-mode; not mounted;
47 mH; 450 mA
B82731T2451A020
EPCOS
L2
inductor; common-mode; 47 mH;
700 mA
B82732F2701B001
EPCOS
L3
inductor; 696 H; 2 A
750312186
Würth Elektronik
L4
fbead; 70 mO (DC); 1.5 A
BLM21PG331SN1D
Murata
L5
inductor; common-mode; 47 H; 2 A
744841247
Würth Elektronik
L50
transformer; 10 mH; 1:1
750311081
Würth Elektronik
MCL1
jumper; P = 2.54 mm; with handle
CAB 9 GS
Fischer
MCL2
jumper; P = 2.54 mm; with handle
CAB 9 GS
Fischer
Q1
MOSFET-N; 710 V; 7 A
STP8N65M5
ST Micro Electronics
Q2
transistor; NPN; 160 V; 300 mA;
TO-126
PMBT5551
NXP Semiconductors
Q3
transistor; NPN; 400 V; 500 mA;
SOT-23
KSC2752OSTU
Fairchild
Q50
transistor; NPN; 65 V; 100 mA
BC846
NXP Semiconductors
R1; R2
resistor; 510 k; 1 %; 250 mW; 1206
-
-
R3; R4
resistor; 470 k; 1 %; 250 mW; 0603
-
-
R5; R8
resistor; jumper; 0 ; 250 mW; 1206
-
-
R6; R7
resistor; 180 k; 1 %; 500 mW; 1206
CRGH1206F180K
TE Connectivity
R9
resistor; 39 ; 1 %; 63 mW; 0603
-
-
R10
resistor; 5.6 k; 1 %; 63 mW; 0603
-
-
R11
resistor; 15 k; 1 %; 100 mW; 0603
RC0603FR-0715KL
Yageo
R12; R13
resistor; 0.91 ; 1 %; 250 mW; 1206
-
-
R14
resistor; 27 ; 1 %; 250 mW; 1206
-
-
R15
resistor; 33 k; 1 %; 250 mW; 1206
-
-
UM10953
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 12 January 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Table 5.
SSL5511DB1399 demo board bill of materials
Reference
Description and values
Part number
Manufacturer
R16
resistor; 100 ; 1 %; 3 W; 1225
SC3-100RFI
Welwyn Components
R17
resistor; not mounted; 4.7 k; 1 %;
250 mW; 500 V; 1206
KTR18EZPF4701
ROHM
R18; R19
resistor; not mounted; 10 ; 1 %;
500 mW; 1206
CRCW120610R0FKEAHP
Vishay
R20
resistor; 120 k; 1 %; 250 mW; 1206
-
-
R21
resistor; 6.8 k; 1 %; 63 mW; 0603
-
-
R22
resistor; 3.9 k; 1 %; 250 mW; 1206
-
-
R23
resistor; 47 k; 1 %; 63 mW; 0603
-
-
R24
resistor; 47 k; 1 %; 100 mW; 0603
RC0603FR-0747KL
Yageo
R25
resistor; 300 k; 1 %; 250 mW; 1206
-
-
R26
resistor; 33 ; 1 %; 250 mW; 1206
-
-
R50
resistor; 33 ; 1 %; 250 mW; 1206
MFP2-4R7 JI
Welwyn Components
R51
resistor; 27 k; 1 %; 250 mW; 1206
-
-
R52
resistor; 680 k; 1 %; 63 mW; 0603
-
-
R53
resistor; 47 k; 1 %; 63 mW; 0603
-
-
R54
resistor; 27 k; 1 %; 63 mW; 0603
-
-
R55
resistor; 3.3 k; 1 %; 63 mW; 0603
-
-
R56
resistor; 68 k; 1 %; 63 mW; 0603
-
-
RF1
resistor; fusible; 4.7 ; 10 %; 2 W;
EMC2
EMC2-4R7K
Welwyn Components
RV1
varistor; 275 V; 75 J
V275LA20AP
Littelfuse
T1
transformer; PQ2620
750315716
Würth Elektronik
U1
SSL5511T
SSL5511T
NXP Semiconductors
WB1
wire bridge; 0.8 mm; pitch = 10.16 mm
923345-04-C
3M
UM10953
User manual
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Rev. 1 — 12 January 2016
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
10. PCB layout
10.1 Component assembly
a. Top view
b. Bottom view
Fig 7.
UM10953
User manual
PCB component assembly
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
10.2 Signal layout
Fig 8.
UM10953
User manual
PCB signal layout
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
11. Transformer specifications
11.1 Flyback transformer specification
A PQ2620 core/bobbin is used for the flyback converter.
$
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Fig 9.
Flyback transformer specification
Table 6.
Specifications
All values are specified at 25 C unless otherwise specified.
Parameter
Value
Conditions
DC resistance (3-1)
0.575 ; ±10 %
at 20 °C
DC resistance (6-4)
0.125 ; ±10 %
at 20 °C
DC resistance (10-9)
0.110 ; ±10 %
at 20 °C
saturation current
2.5 A
20 % roll-off from initial
Electrical specifications
UM10953
User manual
inductance
680 H; ±10 %
100 mV; 10 kHz; Ls
leakage inductance (3-1)
3.2 H (typical); 6.4 H
(maximum)
tie(3+4, 9+10); 100 kHz;
100 mV; Ls
dielectric (1-10)
2200 V (AC); 1 m
tie(3+4); 4000 V (AC); 1 s
dielectric (1-4)
-
625 V (AC); 1 s
dielectric (1-core)
2000 V (AC); 1 m
tie(3+4+10)
turns ratio
1:1; ±1 %
(3-2):(2-1)1:1; ±1 %
turns ratio
2.8:1; ±1 %
(3-1):(10-9)
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Table 6.
Specifications …continued
All values are specified at 25 C unless otherwise specified.
Parameter
Value
Conditions
turns ratio
2.8:1; ±1 %
(3-1):(6-4)
-40 °C to +125 °C
including temperature increase
General specifications
operating temperature
Table 7.
Flyback transformer construction
Wire
Description
1st
21 turns of bifilar wire;  = 0.2 mm copper
primary
secondary
15 turns of TIW;  = 0.4 mm copper
2nd
21 turns of bifilar wire;  = 0.2 mm copper
primary
auxiliary
12 turns;  = 0.4 mm copper
The secondary windings are sandwiched between the 1st and 2nd primary windings for low
primary leakage inductance.
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User manual
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
11.2 Dim transformer specification
The dim transformer gives isolation between the primary and secondary sides. It is a part
of the dimming interface
SDUWPXVWLQVHUWIXOO\WR
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64[
GLPHQVLRQPD\EHH[FHHGHGZLWKVROGHURQO\
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PD[
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PD[
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GRWORFDWHVWHUP
WHUPQXPEHUVIRUUHIHUHQFHRQO\
ORWFRGHDQGGDWHFRGH
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[
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UHFRPPHQGHG
3&SDWWHUQFRPSRQHQWVLGH
DDD
Fig 10. Dim transformer specification
Table 8.
Electrical specification
All values are specified at 25 C unless otherwise specified.
UM10953
User manual
Parameter
Value
DC resistance (1-2)
2.3 ; ±10 %
DC resistance (6-4)
2.7 ; ±10 %
primary inductance (1-2)
9.75 mH minimum; ±10 %
Conditions
100 mV; 10 kHz
leakage inductance (3-1)
8 H nominal; 12 H maximum short 6-4; 100 mV; 100 kHz
turns ratio 1-2: 6-4
1: 1; ±1 %
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
12. Appendix: Non-dimmable derivative with SSL5101T
The non-dimmable derivative is realized from the SSL5511DB1399 analog/PWM
dimmable demo board by not mounting the following components and using the
SSL5101T instead of the SSL5511T.
12.1 SSL5101T pinning information
50$,16
9&&
'5$,1
*1'
,&
767
3:5'59
767
,616
DDD
Fig 11. UM10953 pinning diagram
Table 9.
UM10953
User manual
SSL5101T pin description
Symbol
Pin
Description
RMAINS
1
mains detection input
VCC
2
IC supply input/output
TST2
3
IC test pin, to be connected to ground in
application
TST
4
IC test pin, to be connected to ground in
application
ISNS
5
peak current sense input
PWRDRV
6
external MOSFET gate driver output
GND
7
ground
DRAIN
8
external MOSFET drain sense input
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UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
12.2 BOM differences
Table 10.
BOM differences
Reference
Description and values
Part number
Manufacturer
C50; C54
capacitor; not mounted; 100 nF;
10 %; 50 V; X7R; 0603
C0603C104K5RAC
KEMET
C51
capacitor; not mounted; 100 nF;
10 %; 200 V; X7R; 1206
C1206C104K2RAC
KEMET
C52
capacitor; not mounted; 100 pF;
10 %; 50 V; X7R; 0603
-
-
C53
capacitor; not mounted; 220 nF;
10 %; 50 V; X7R; 0603
-
-
CN50
connector; terminal block; not
mounted; 5.08 mm
PM5.08/2/90 BLK
Weidmüller
D50
diode; Zener; not mounted; 12 V;
250 mA
BZX384-C12
NXP Semiconductors
D51; D52
diode; not mounted; 100 V; 250 mA
BAS316
NXP Semiconductors
D53
diode; Zener; not mounted; 5.6 V;
300 mA
BZX384-C5V6
NXP Semiconductors
L50
transformer; not mounted; 10 mH;
1:1
750311081
Würth Elektronik
MCL1
jumper; P = 2.54 mm; with handle
CAB 9 GS
Fischer
Q50
transistor; NPN; not mounted; 65 V;
100 mA
BC846
NXP Semiconductors
R50
resistor; not mounted; 33 ; 1 %;
250 mW; 1206
-
-
R51
resistor; not mounted; 27 k; 1 %;
250 mW; 1206
-
-
R52
resistor; not mounted; 680 k; 1 %;
63 mW; 0603
-
-
R53
resistor; not mounted; 47 k; 1 %;
63 mW; 0603
-
-
R54
resistor; not mounted; 27 k; 1 %;
63 mW; 0603
-
-
R55
resistor; not mounted; 3.3 k; 1 %;
63 mW; 0603
-
-
R56
resistor; not mounted; 68 k; 1 %;
63 mW; 0603
-
-
UM10953
User manual
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Rev. 1 — 12 January 2016
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Fig 12. Schematic non-dimmable derivative with SSL5101T
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DDD
UM10953
23 of 26
© NXP Semiconductors N.V. 2016. All rights reserved.
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SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
Rev. 1 — 12 January 2016
All information provided in this document is subject to legal disclaimers.
&<
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UM10953
User manual
12.3 Schematic non-dimmable derivative with SSL5101T
UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
13. Abbreviations
Table 11.
Abbreviations
Acronym
Description
EMI
ElectroMagnetic Interference
HF
High-Frequency
LED
Light-Emitting Diode
OCP
OverCurrent Protection
OSP
Output Short Protection
OTP
OverTemperature Protection
PE
Protective Earth
PF
Power Factor
PCB
Printed-Circuit Board
PFC
Power Factor Correction
PWM
Pulse Width Modulation
SSL
Solid-State Lighting
THD
Total Harmonic Distortion
14. References
UM10953
User manual
[1]
SSL5511T data sheet — GreenChip controller for LED lighting with DIM pin;
2015, NXP Semiconductors
[2]
SSL5101T data sheet — GreenChip controller for LED lighting;
2015, NXP Semiconductors
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NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
15. Legal information
15.1 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications and
the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
15.2 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, NXP Semiconductors does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. NXP Semiconductors takes no
responsibility for the content in this document if provided by an information
source outside of NXP Semiconductors.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors and its suppliers accept no liability for
inclusion and/or use of NXP Semiconductors products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using NXP Semiconductors products, and NXP Semiconductors
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP
Semiconductors product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
Evaluation products — This product is provided on an “as is” and “with all
faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates
and their suppliers expressly disclaim all warranties, whether express, implied
or statutory, including but not limited to the implied warranties of
non-infringement, merchantability and fitness for a particular purpose. The
entire risk as to the quality, or arising out of the use or performance, of this
product remains with customer.
In no event shall NXP Semiconductors, its affiliates or their suppliers be liable
to customer for any special, indirect, consequential, punitive or incidental
damages (including without limitation damages for loss of business, business
interruption, loss of use, loss of data or information, and the like) arising out
the use of or inability to use the product, whether or not based on tort
(including negligence), strict liability, breach of contract, breach of warranty or
any other theory, even if advised of the possibility of such damages.
Notwithstanding any damages that customer might incur for any reason
whatsoever (including without limitation, all damages referenced above and
all direct or general damages), the entire liability of NXP Semiconductors, its
affiliates and their suppliers and customer’s exclusive remedy for all of the
foregoing shall be limited to actual damages incurred by customer based on
reasonable reliance up to the greater of the amount actually paid by customer
for the product or five dollars (US$5.00). The foregoing limitations, exclusions
and disclaimers shall apply to the maximum extent permitted by applicable
law, even if any remedy fails of its essential purpose.
Safety of high-voltage evaluation products — The non-insulated high
voltages that are present when operating this product, constitute a risk of
electric shock, personal injury, death and/or ignition of fire. This product is
intended for evaluation purposes only. It shall be operated in a designated
test area by personnel that is qualified according to local requirements and
labor laws to work with non-insulated mains voltages and high-voltage
circuits.
The product does not comply with IEC 60950 based national or regional
safety standards. NXP Semiconductors does not accept any liability for
damages incurred due to inappropriate use of this product or related to
non-insulated high voltages. Any use of this product is at customer’s own risk
and liability. The customer shall fully indemnify and hold harmless NXP
Semiconductors from any liability, damages and claims resulting from the use
of the product.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
15.3 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
GreenChip — is a trademark of NXP B.V.
UM10953
User manual
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25 of 26
UM10953
NXP Semiconductors
SSL5511DB1399 - 35 W, PWM/0 V to 10 V dimmable LED driver
16. Contents
1
1.1
2
3
4
5
6
6.1
6.2
6.3
6.4
6.5
7
7.1
7.2
7.3
7.4
8
9
10
10.1
10.2
11
11.1
11.2
12
12.1
12.2
12.3
13
14
15
15.1
15.2
15.3
16
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety warning . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Board photographs . . . . . . . . . . . . . . . . . . . . . . 5
Board connections . . . . . . . . . . . . . . . . . . . . . . 6
Functional description . . . . . . . . . . . . . . . . . . . 8
Input filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rmains detection (RMAINS pin) . . . . . . . . . . . . . 8
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dimming interface. . . . . . . . . . . . . . . . . . . . . . . 9
Output capacitor and filtering . . . . . . . . . . . . . . 9
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SSL5511DB1399 demo board performance. . 10
HD, PF, and efficiency performance . . . . . . . . 10
ElectroMagnetic Interference (EMI) . . . . . . . . 10
Dim curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Bill of Materials (BOM). . . . . . . . . . . . . . . . . . . 13
PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Component assembly . . . . . . . . . . . . . . . . . . . 16
Signal layout . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Transformer specifications . . . . . . . . . . . . . . . 18
Flyback transformer specification . . . . . . . . . . 18
Dim transformer specification . . . . . . . . . . . . . 20
Appendix: Non-dimmable derivative with
SSL5101T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SSL5101T pinning information . . . . . . . . . . . . 21
BOM differences . . . . . . . . . . . . . . . . . . . . . . . 22
Schematic non-dimmable derivative with
SSL5101T. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 24
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Legal information. . . . . . . . . . . . . . . . . . . . . . . 25
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP Semiconductors N.V. 2016.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 12 January 2016
Document identifier: UM10953
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