Fairchild FEBFAN7631_L17U120A LED Driver User Guide
FEBFAN7631_L17U120A is a 120 W LED driver designed for universal line applications, featuring a flyback bias regulation, a boost converter for Power-Factor-Correction (PFC), and an LLC resonant converter for a single LED channel with constant current and voltage or individual boost converters for two LED channels with constant current and dimming control. It utilizes Fairchild Power Switch (FPS™) FSL117MRIN, CRM PFC Controller FL7930B, Half-Bridge LLC Controller FAN7631, and Single-Channel Boost Controller (for each controller) FAN73402. The power supply operates on an input voltage range of 85 VRMS – 300 VRMS and provides DC outputs with a constant current of 2.4 A at 50 VMAX for a single LED channel or with constant current and dimming of 1.2 V at 100 V for two LED channels.
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User Guide for
FEBFAN7631_L17U120A
120 W LED Driver at Universal Line
Featured Fairchild Products:
FSL117MRIN
FL7930C
FAN7631
FAN73402
Direct questions or comments about this evaluation board to:
“Worldwide Direct Support”
Fairchild Semiconductor.com
© 2013 Fairchild Semiconductor Corporation 1 FEBFAN7631_L17U120A • Rev. 1.0.0
Table of Contents
Power Factor and Total Harmonic Discharge (THD) ........................................... 27
Key Waveforms for Single-Channel Boost Stage ................................................ 39
LED Short/Open Protection at Multi CH Output ................................................. 42
© 2013 Fairchild Semiconductor Corporation 2 FEBFAN7631_L17U120A • Rev. 1.0.0
This user guide supports the evaluation kit for the FSL117MRIN, FL7930C, FAN7631, and FAN73402; orderable as FEB-L017U120B. It should be used in conjunction with the product datasheets as well as Fairchild’s application notes and technical support team.
Please visit Fairchild’s website at www.fairchildsemi.com
.
1. Introduction
This document describes a proposed solution for a 120 W LED driver consisting of an
AC-DC converter for flyback bias regulation, a boost converter for Power-Factor-
Correction (PFC), an LLC resonant converter for a single LED channel with constant current and voltage or individual boost converters for two LED channels with constant current and dimming control. The input voltage range is 85 V
RMS
– 300 V
RMS
and there are DC outputs with a constant current of 2.4 A at 50 V
MAX
for a single LED channel or with constant current and dimming of 1.2 V at 100 V for two LED channels.
The power supply mainly utilizes:
FSL117MRIN – Green Mode Fairchild Power Switch (FPS™)
FL7930B – CRM PFC Controller
FAN7631 – Half-Bridge LLC Controller
FAN73402 – Single-Channel Boost Controller (for each controller)
FCPF190N60E and FCPF600N60Z – Fairchild SuperFET® Technology
FDPF14N30 – Fairchild UniFET® Technology N-Channel MOSFET
FFPF08H60S – Fairchild Hyperfast Rectifier
MBR20200CT – Fairchild Schottky Rectifier
RURD620CCS9A – Fairchild Ultra-Fast Recovery Rectifier (for discrete)
This document contains important information (e.g. schematic, bill of materials, printed circuit board layout, transformer design documentation), and the typical operating characteristics supporting this evaluation board.
1.1. General Description of FSL117MRIN
The FSL117MRIN is an integrated Pulse Width Modulation (PWM) controller and 700 V
SenseFET specifically designed for offline Switched-Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixedfrequency oscillator, Line Over-Voltage Protection (LOVP), Under-Voltage Lockout
(UVLO), Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and selfprotection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL117MRIN can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective design of a flyback converter.
© 2013 Fairchild Semiconductor Corporation 3 FEBFAN7631_L17U120A • Rev. 1.0.0
1.1.1. Features
Advanced Soft Burst Mode for Low Standby Power and Low Audible Noise
Random Frequency Fluctuation (RFF) for Low Electromagnetic Interference (EMI)
Pulse-by-Pulse Current Limit
Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current
Protection (AOCP), Internal Thermal Shutdown (TSD) with Hysteresis, Output-Short
Protection (OSP), Line Over-Voltage Protection (LOVP), and Under-Voltage
Lockout (UVLO) with Hysteresis
Low Operating Current (0.4 mA) in Burst Mode
Internal Startup Circuit
Internal Avalanche-Rugged 700 V SenseFET
Built-in Soft-Start: 15 ms
Auto-Restart Mode
1.1.2. Internal Block Diagram
V
STR
5
V
CC
2
Drain
6,7,8
V burst
0.35V / 0.50V
Soft Burst
I
CH
V
REF
V
CC
Good
7.5V / 12V
V
CC
2.0µA
I
DELAY
V
REF
90µA
I
FB
Soft-Start
Random
OSC
PWM
FB
3
3R
R
S Q
R Q
LEB (300ns)
Gate
Driver t
ON
<t
OSP
(1.0
μs)
LPF
V
AOCP
1 GND
V
OSP
V
SD
7.0V
V
CC
V
OVP
24.5V
V
INH
/ V
INL
TSD
V
CC
Good
S Q
R Q
4
V
IN
FSL1117MRIN
Figure 1. Block Diagram of FSL117MRIN
© 2013 Fairchild Semiconductor Corporation 4 FEBFAN7631_L17U120A • Rev. 1.0.0
1.2. General Description of FL7930C
The FL7930C is an active Power Factor Correction (PFC) controller for low- to highpower lumens applications that operate in Critical Conduction Mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage-sensing network. FL7930B provides over-voltage, open-feedback, over-current, input-voltage-absent detection, and under-voltage lockout protections. The FL7930B can be disabled if the INV pin voltage is lower than 0.45 V and the operating current decreases to a very low level. Using a new variable on-time control method, Total
Harmonic Discharge (THD) is lower than conventional CRM boost PFC ICs. The
FL7930C provides a PFC Ready pin that can be used to shutdown the boost power stage when PFC output voltage reaches the proper level (with hysteresis).
1.2.1. Features
Additional PFC-Ready Function
Input-Voltage-Absent-Detection Circuit
Maximum Switching Frequency Limitation.
Internal Soft-Start with Overshoot Prevention
Internal Total harmonic Distortion (THD) Optimizer
Precise Adjustable Output Over-Voltage Protection (OVP)
Open-Feedback Protection and Disable Function
Zero Current Detector (ZDC)
150 μs Internal Startup Timer
MOSFET Over-Current Protection (OCP)
Under-Voltage Lockout with 3.5 V Hysteresis (UVLO)
Low Startup (40 μA) and Operating Current (1.5 mA)
Totem-Pole Output with High State Clamp
+500 / -800 mA Peak Gate Drive Current
SOP-8 Package
© 2013 Fairchild Semiconductor Corporation 5 FEBFAN7631_L17U120A • Rev. 1.0.0
1.2.2. Internal Block Diagram
V
CC
V
REF
V
BIAS
2.5V
REF internal bias
V
CC
H:open reset
-
+
V
Z
V
TH(S/S)
8 V
CC
8.5
12
ZCD 5
INV 1
-
+
V
TH(ZCD)
V
REF
6.5V
THD optimized sawtooth generator
1V
+
Startup without
Overshoot
-
V
REF stair step
-
+ reset clamp circuit
COMP 3 disable
RDY 2
-
INV_open
OVP
UVLO
+
0.35
0.45
V
BIAS restart timer
V
IN
-Absent
Detection
S Q
R Q disable f
MAX limit
2.5
2.675
1.60
2.24
Figure 2.
Block Diagram of FL7930C
+
-
V
CS_LIM thermal shutdown
40k
W
8pF
V
CC gate driver
V
O(MAX)
7
OUT
4
CS
6 GND
1.3. General Description of FAN7631
The FAN7631 is a pulse-frequency modulation controller for high-efficiency half-bridge resonant converters that includes a high-side gate drive circuit, an accurate currentcontrolled oscillator, and various protection functions. The FAN7631 features include variable dead time, high operating frequency up to 600 kHz, protections such as LUVLO, and a selectable latch or A/R protection using the LS pin for user convenience. The Zero-
Voltage-Switching (ZVS) technique reduces the switching losses and improves the efficiency significantly. ZVS also reduces the switching noise noticeably, which allows a small Electromagnetic Interference (EMI) filter. Offering everything necessary to build a reliable and robust resonant converter, the FAN7631 simplifies designs and improves productivity and performance. The FAN7631 can be applied to resonant converter topologies such as series resonant, parallel resonant, and LLC resonant converters.
© 2013 Fairchild Semiconductor Corporation 6 FEBFAN7631_L17U120A • Rev. 1.0.0
RT 2
SS
3
1.3.1. Features
Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant
Converter Topologies
High Efficiency through Zero-Voltage-Switching (ZVS)
Up to 600 kHz Operating Frequency
High Gate-Driving Current +500 mA/-1000 mA
Precise Adjustable Output Over-Voltage Protection (OVP)
Programmable Dead Time using a Resistor
Pulse Skipping and Burst Operation for Frequency Limit (programmable) at Light-
Load Condition
Simple Remote on/off Control with Selectable Latch or A/R using FI or LS pin
Protection Function; Over-Voltage Protection (OVP), Overload Protection (OLP),
Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal
Thermal Shutdown (TSD) and High Precise Line Under-Voltage Lockout (LUVLO)
Level-Change OCP Function during Startup.
SOP-16 Package
1.3.2. Internal Block Diagram
LV
CC
12
Current Controlled Oscillator
+
LVcc Good 16
HV
CC
2V
+
V
RT
2I
CTC
-
I
CTC
V
TH
+
V
TL
+
-
S Q
R Q
-
10 / 12.5 V
+
V
OVP
-
OVP
V
REF
Internal Bias
DT
HV
CC
Good
High-Side
Gate Driver
+
-
8.7 / 9.2 V
15
HO
V
SS_ATART
/ V
SS_END
+
V
SS_END
-
I
SS1
Current
Steering
Block
30µA
I
SS2
-
CS
V
SS_START
+
OLP
Block
-
OVP
OLP
50% Duty Cycle
Frequency
Divider < 600kHz
OCP
A/R
Protection
S Q
R Q
DT
OCP
Low-Side
Gate Driver
AOCP
-
+
V
OCP
-0.56V
CS
14
CTR
4
DT
11
LO
9 CS
I
OLP
30µA
+
-
V
AOCP
-1.1V
PG
10
SG 7
LINE Good
LVcc Good
SKIP
Latch
Protection
+
10µA
I
LINE 0.6 V/ 0.4 V +
Q S
-
Q R
V
RT
3V
-
LV
CC
< 5V
8 1
LS CON
Figure 3. Block Diagram of FAN7631
TSD
+
-
4V
V
FI
6
FI
© 2013 Fairchild Semiconductor Corporation 7 FEBFAN7631_L17U120A • Rev. 1.0.0
1.4. General Description of FAN73402
The FAN73402 is a single-channel boost controller that integrates an N-channel power
MOSFET for PWM dimming using Fairchild’s proprietary planar Double-diffused
MOSFET (DMOS) technology. The IC operates as a constant-current source for driving high-current LEDs. It uses Current Mode control with programmable slope compensation to prevent sub-harmonic oscillation. The IC provides protections including: open-LED protection, over-voltage protection, and direct-short protection for high system reliability. The IC internally generates a FAULT signal with delay if an abnormal LED string condition occurs. PWM dimming and analog dimming functions can be implemented independently. Internal soft-start prevents inrush current flowing into output capacitor at startup.
1.4.1. Features
Single-Channel Boost LED Switch
Internal Power MOSFET for PWM Dimming:
R
DS(ON)
=1.0 Ω at V
GS
=10 V, BV
DSS
=200 V
Current-Mode PWM Control
Internal Programmable Slope Compensation
Wide Supply Voltage Range: 10 V to 35 V
LED Current Regulation: ±1%
Programmable Switching Frequency
Analog and PWM Dimming
Wide Dimming Ratio: On Time=10 µs to DC
Cycle-by-Cycle Current Limiting
Thermal Shutdown: 150°C
Open-LED Protection (OLP)
Over-Voltage Protection (OVP)
Over-Current Protection (OCP)
Error Flag Generation (for External Load Switch)
Internal Soft-Start
16-Lead SOIC Package
© 2013 Fairchild Semiconductor Corporation 8 FEBFAN7631_L17U120A • Rev. 1.0.0
1.4.2. Internal Block Diagram
OVP
3V
20μs Delay
-
OVP
+
100mV
OLP
ADIM
TSD
ADIM*4
1.4~4V
Current
Sense
-
+ gm
+
-
1μs
Delay
OCP
POR
640µs at 200kHz
Auto-Restart
PWM
0.3~3V
S Q
R
1/4 -
+
CMP
0.5V
-
100mV
+
Burst
Operation
4V
16 Steps
Internal Soft-Start
3ms at 200kHz
GND
Switch Off
+
-
0.5V
45µA
R
S
Q
Dim off
5k
PWM
Gate
Driver
Slope
Compensation
CLK+LEB
Oscillator
VCC
ENA
REF
UVLO 9V
-
+
Hys. 1.0V
OLPi Dim off
PWM
1.22V
-
+
Hys. 70mV
5V, max. 3mA
BDIM
OLP
Voltage Reference
& Internal Bias
5μs Delay
40.96ms
at 200kHz
Debounce
Time
OLPi
BDIM
Figure 4. Block Diagram of FAN73402
Current
Sense
+ 0.2V
-
PWM
End of Soft-Start
FAULT
DRV
CS
RT
Drain
SEN
© 2013 Fairchild Semiconductor Corporation 9 FEBFAN7631_L17U120A • Rev. 1.0.0
2. Specifications for Evaluation Board
Table 1. Specifications for LED Lighting Lamp
Input
Description
Voltage
Symbol
V
IN.MIN
V
IN.MAX
V
IN.NOMINAL
Value
85 V
AC
300 V
AC
120 V/230 V
Frequency f
IN
60 Hz/50 Hz
Output
Voltage
Current
Efficiency
[Single Channel]
Standby Power
PF/THD
V
OUT_SINGLE
V
OUT_MULTI.
I
OUT_SINGLE
I
OUT_MULTI.
Eff
85VAC
Eff
120VAC
Eff
140VAC
Eff
180VAC
Eff
230VAC
Eff
300VAC
P
85VAC
50 V
100 V
2.4 A
1.2 A
87.77%
90.06%
90.86%
91.55%
91.99%
92.33%
0.283 W
P
120VAC
P
140VAC
0.306 W
0.315 W
P
180VAC
P
230VAC
P
300VAC
0.319 W
0.341 W
PF/THD
85VAC
PF/THD
120VAC
0.397 W
0.998/4.58%
0.997/4.65%
PF/THD
140VAC
0.995/4.74%
PF/THD
180VAC
PF/THD
230VAC
0.992/5.32%
0.980/7.89%
PF/THD
300VAC
0.945/15.13%
FSL117MRIN T
FSL117MRIN
53.9°C
FAN73402
Temperature
MOSFET
T
FAN73402
T
PFC
T
LLC
T
Boost_Channel
T
LLC
T
Boost_Channel
T
_LLC
82.1°C
63.0°C
59.2°C
61,8°C
67.5°C
69.5°C
72.6°C
Comments
Minimum Input Voltage
Maximum Input Voltage
Nominal Input Voltage
Line Frequency
Output Voltage for Single Channel LED
Output Voltage for Multi Channel LED
Output Current for Single Channel LED
Output Current for Multi Channel LED
Efficiency at 85 V
AC
Line Input Voltage
Efficiency at 120 V
AC
Line Input Voltage
Efficiency at 140 V
AC
Line Input Voltage
Efficiency at 180 V
AC
Line Input Voltage
Efficiency at 230 V
AC
Line Input Voltage
Efficiency at 300 V
AC
Line Input Voltage
Standby Power at 85 V
AC
Line Input Voltage
Standby Power at 120 V
AC
Line Input Voltage
Standby Power at 140 V
AC
Line Input Voltage
Standby Power at 180 V
AC
Line Input Voltage
Standby Power at 230 V
AC
Line Input Voltage
Standby Power at 300 V
AC
Line Input Voltage
PF/THD at 85 V
AC
Line Input Voltage
PF/THD at 120 V
AC
Line Input Voltage
PF/THD at 140 V
AC
Line Input Voltage
PF/THD at 180 V
AC
Line Input Voltage
PF/THD at 230 V
AC
Line Input Voltage
PF/THD at 300 V
AC
Line Input Voltage
FSL117MRIN Temperature at 25°C
FAN73402 Temperature at 25°C
PFC MOSFET Temperature at 25°C
LLC MOSFET Temperature at 25°C
Boost Channel MOSFET Temperature at 25°C
LLC Rectifier Temperature at 25°C
Boost Channel Rectifier Temperature at 25°C
LLC Transformer Temperature at 25°C
All data of the evaluation board measured with the board enclosed in a case and external temperature around 25°C.
© 2013 Fairchild Semiconductor Corporation 10 FEBFAN7631_L17U120A • Rev. 1.0.0
3. Photographs
Figure 5.
Top View [Dimensions: 232mm (L) x 114 mm (W) x 27 mm (H)]
Figure 6.
Bottom View [Dimensions: 232mm (L) x 114 mm (W) x 27 mm (H)]
© 2013 Fairchild Semiconductor Corporation 11 FEBFAN7631_L17U120A • Rev. 1.0.0
4. Printed Circuit Board (PCB)
232 mm
Figure 7. Top Pattern
Figure 8. Bottom Pattern
© 2013 Fairchild Semiconductor Corporation 12 FEBFAN7631_L17U120A • Rev. 1.0.0
5. Schematic
RS805
100k/3216
RS804
100k/3216
VPFC
RS806
30k/3216 RS821
30k/3216
RS822
30k/3216
RS823
30k/3216
1
GND DRAIN
7
CS802
2.2n/3216
DS802
RS1M
RS807
0R/3216
DRAIN
8
3
Vf b DRAIN
6
DS804
1N4003
4
PCS801B
FOD817B
CS807
100n
3
4
Vin
RS812
0R0
Vcc
ICS802
FSL117MRIN
2
CS809
100n
CS808
10uF/50V
4
5
6
1
2
3
TS801
EPC1717
CY 806
4,7n
9
8
7
10
DS801
ES1D
20mA
PS_ON
RS856 QS853
15k KSPT2907A 3
ICS805
KA78L15
I O
1
CS813
10uF/35V
15V
RS857
15k
RS858
10k
QS854
KST2222A
RS855
10k
5.2V
CN805
2
5.2V
1
GND
CON3
CS803
47uF/35V
CS804
470uF/10V
DS803
SB560
RS808
1k
RS824
390/3216
5.2V
RS825
390/3216
RS809
5.1k
1
PCS801A
FOD817B
RS810
1.5k
CS805
NC
2
RS811
12k
CS806
82n
ICS803
KA431SMF2TF RS813
NC
RS814
4.7k
RS818
20k PS_ON
VCC
CS814
10uF/50V
1
ICS804
KA78L15
O
3
I
CS810
100n
QS801
KSPT2907A
4
RS817
20k
PCS802B
FOD817B
RS816
20k
3
1
2
PCS802A
FOD817B
RS815
1k
QS802
KST2222AMTF
RS819
20k
CS811
100n
RS820
20k
QS803
KST2222AMTF
FO
CS815
100n
CS812
100n
SW1
PS_ON
Figure 9.
Schematic for Flyback Bias Regulator Part
© 2013 Fairchild Semiconductor Corporation 13 FEBFAN7631_L17U120A • Rev. 1.0.0
RT2
3D15 t
RT1
3D15 t
FS801
ZNR801
10D561K
250VAC, T6.3AH
DX801
D15XB60
LX801
CV630055
CY 802
470p
CY 801
470p
CX801
470nF
LX802
CV630055
RX801
1M/3216
CX802
470nF
RX802
1M/3216
RX803
1M/3216
DP801
1N5408
VPFC
DP802
FFPF08H60S
LP801
PFC3819QM
CP803
680n/630V
RP801
4.3M
CP801
330uF/250V
RP815
3.3
LL4148
DP804
QP802
FCPF190N60E
RP804
4.3M
CP802
330uF/250V
VCC
DP803
ES1D
RP806
47k
ZDP801
NC
CP805
10uF/35V
RP812
10k
CP806
100n CP808
1u
RP817
NC
8
VCC
5
ZCD
OUT
CS
7
4
3
COMP
CP807
200n
6
GND
INV
1
READY
2
ICP801
FL7930C
RP803
10
RP805
10K
RP811
150
CP809
1n
RP814
0.1/5W
CP811
1n
RP807
4.3M
RP809
4.3M
RP813
91K
RP816
4.7K
PFC OK
CN801
INLET
Figure 10. Schematic for PFC Part
© 2013 Fairchild Semiconductor Corporation 14 FEBFAN7631_L17U120A • Rev. 1.0.0
FAN7631
Figure 11. Schematic for LLC Part
※ RM830 should be NC in case of 50 V/2.4 A output and use 16 k value in case of 100 V/1.2 A output.
© 2013 Fairchild Semiconductor Corporation 15 FEBFAN7631_L17U120A • Rev. 1.0.0
JPM805
15V 15V-1
VLED+
50V/1.2A
RL801
150k
15V-1
CL803
1.2n
DL806
ES1D
RL832
75k
RL834
1.8k
RV801
50k RL838
39k
LL801
68uH/SPI-SDH1360-680
DL801
RURD620
RL802
150k
RL810
9.1k
QL801
FDPF14N30
ENA
DL805
LL4148
PS_ON
RL803
3R3
LL4148
DL803
RL812
10K
RL807
0R
ICL802
FAN73402
CL819
10n
1
VCC
CL806
10uF/50V
CL807
100n
RL817
0.2R/3216
RL822
7.5K
RL816
0.2R/3216
CL817
NC
ADIM1
REF1
FO
2
3
DRV
GND
RL830
NC
4
CL811
10p
5
CS
REF
6
FAULT
7
RT
RL835
150k
8
SENSE
RL837
2R/2W
JPM803
NC
BDIM
16
ADIM
15
CMP
14
OVP
13
ENA
12
DRAIN
10
DRAIN
9
CL801
47uF/160V
CL802
47uF/160V
100V/600mA
BDIM1
RL818
10k
REF1
OVP1
CL809
1.2n
ADIM
OVP1
ENA
RTN1
RL804
150K
RL808
150K
RL813
150K
RL820
12k
CL812
6.8n
RL828
15k
CL815
100n
VLED1
RL847
1K
RL848
100K CL820
1n
BDIM1
VLED+
RTN1
CN803
2
VLED1
1
RTN1
CON3
BDIM1
DIM1+
GND
Figure 12. Schematic for Boost Channel 1.
※ JPM805 should be opened in case of 50 V/2.4 A output and shorted in case of 100 V/1.2 A output.
© 2013 Fairchild Semiconductor Corporation 16 FEBFAN7631_L17U120A • Rev. 1.0.0
VLED+
50V/1.2A
LL802
68uH/SPI-SDH1360-680
DL802
RURD620
100V/600mA
15V-1
DL807
ES1D
QL802
FDPF14N30
RL805
3R3
LL4148
DL804
RL814
10K
RL809
0R
RL823
7.5K
CL804
47uF/160V
CL805
47uF/160V
1
VCC
2
DRV
ICL801
FAN73402
BDIM
16
ADIM
15
BDIM2
RL819
10k
REF2
OVP2
CL810
1.2n
ADIM2
RL839
1.8k
RV802
50k
RL842
39k
CL821
10uF/50V
CL808
0.1u
RL841
75k
CL822
10n
RL826
0.2R/3216
CL818
NC
FO
RL825
0.2R/3216
3
GND
RL831
NC
4
CS
CL813
10p
5
REF
6
FAULT
ADIM2
RL836
150K
7
RT
8
SENSE
RL840
2R/2W
JPM804
NC
CMP
14
OVP
ENA
DRAIN
13
12
10
DRAIN
9
OVP2
ENA
RTN2
RL821
12k
CL814
6.8n
RL829
15k
CL816
100n
RL806
150k
RL811
150k
RL815
150k
VLED2
RL850
1K
RL849
100K
CL823
1n
BDIM2 VLED+
RTN1
CN804
2
VLED1
1
RTN1
CON3
BDIM2
DIM2+
GND
Figure 13. Schematic for Boost Channel 2
© 2013 Fairchild Semiconductor Corporation 17 FEBFAN7631_L17U120A • Rev. 1.0.0
6. Bill of Materials
No. Part Reference
1 BDIM1, BDIM2
2 CL801, CL802, CL804, CL805
3 CL803, CL809, CL810
4 CL806, CS808, CS814, CL821
5
CP806, CS807, CL807, CS809,
CS810, CS811, CM811, CS812,
CS815, CL815, CL816, CM818,
CL808
6 CL811, CL813, CM814
7 CL812, CL814
8 CM807, CM810, CL819, CL822
9 CP809,CP811,CL820,CL823
10 CM801, CM802, CM803, CM804
11 CM806
12 CM808
13 CM809
14 CM816
15 CM817, CM820
16 CM823
17 CM824
18 CN801
19 CN802, CN803, CN804, CN805
20 CP801, CP802
21 CP803
22 CP805, CM812, CS813
23 CP807
24 CP808
25 CS802
26 CS803
27 CS804
C0805C100J5GACTU
C0805C683J5GACTU
C0805C103J5GACTU
C0805C102J5GACTU
NHL 330 µF/250V
C0805C224J5GACTU
C0805C474J5GACTU
C0805C473J5GACTU
4.7 nF/630 V
C0805C822J5GACTU
C0805C562J5GACTU
C1206C473J1GACTU
3 Pin
2 Pin
KMG 330 µF/250 V
680 n/630 V
KMG 10 µF/35 V
C0805C204J5GACTU
C0805C105J5GACTU
C1206C202J5GACTU
KMG 47 µF/35 V
KMG 470 µF/35 V
Part Value
2 Pin
47 µF/160 V
C0805C112J5GACTU
KMG 10 µF/35 V
Qty. Description Vendor
1 2 Pin Connector Molex
4 Electrolytic Capacitor Samyoung
3
1.2 nF/50 V, SMD
MLCC
Kemet
4 Electrolytic Capacitor Samyoung
C0805C104J5GACTU 13
1.2 nF/50 V, SMD
MLCC
Kemet
3
2
4
10 pF/50 V, SMD
MLCC
6.8 nF/50 V, SMD
MLCC
10 nF/50 V, SMD
MLCC
Kemet
Kemet
Kemet
4
1 nF/50 V, SMD
MLCC
Kemet
4 Electrolytic Capacitor Samyoung
1
220 nF/50 V, SMD
MLCC
Kemet
1
1
1
2
1
1
470 nF/50 V, SMD
MLCC
47 nF/50 V, SMD
MLCC
Film Capacitor
8.2 nF/50 V, SMD
MLCC
5.6 nF/50 V, SMD
MLCC
47 nF/100 V, SMD
MLCC
Kemet
Kemet
Sungho
Kemet
Kemet
Kemet
1
4
3 Pin Connector
2 Pin Connector
Molex
Molex
2 Electrolytic Capacitor Samyoung
1 Film Capacitor Sungho
3 Electrolytic Capacitor Samyoung
1
1
200 nF/50 V, SMD
MLCC
1 µF/50 V, SMD
MLCC
Kemet
Kemet
1
2.2 nF/630 V, SMD
MLCC
Kemet
1 Electrolytic Capacitor Samyoung
1 Electrolytic Capacitor Samyoung
© 2013 Fairchild Semiconductor Corporation 18 FEBFAN7631_L17U120A • Rev. 1.0.0
No. Part Reference
28 CS806
29 CX801, CX802
30 CY801, CY802
31 CY803, CY806
32 DL801, DL802
33
34
DM803, DL803, DP804, DL804,
DM805, DL805, DM806, DM807,
DM808, DM809
DS801, DP803, DL806, DL807,
DM810
35 DM801, DM802
36 DM804
37 DP801
38 DP802
39 DS802
40 DS803
41 DS804
42 DX801
43 FS801
44 HS1
45 HS2
46 ICL801, ICL802
47 ICM801
48 ICM803
49 ICP801
50 ICS802
51 ICS803
52 ICS804, ICS805
53 JPM805
54 LL801, LL802
Part Value
C1206C823J5GACTU
MPX334
SDC471J10FS10
SDC472J10FK7
RURD620
1
2
2
1
2
Qty. Description
82 nF/50 V, SMD
MLCC
X-Capacitor
Y-Capacitor
Y-Capacitor
200 V/6 A Ultrafast
Diode
Vendor
Kemet
Carli
Samwha
Samwha
Fairchild
Semiconductor
LL4148 10 Small Signal Diode
Fairchild
Semiconductor
ES1D
MBR20200CT
UF4004
1N5408
FFPF08H60S
RS1M
5
2
1
1
1
1
200 V/1 A, Ultra-Fast
Diode
Fairchild
Semiconductor
200 V/20 A, Schottky
Rectifier
Fairchild
Semiconductor
400 V/1.0 A, Ultra-
Fast Diode
Fairchild
Semiconductor
1000 V/3 A, General
Rectifier
Fairchild
Semiconductor
8 A, 600 V, Hyper-
Fast Diode
1000 V/1 A, Ultra-
Fast Diode
Fairchild
Semiconductor
Fairchild
Semiconductor
SB560
1N4003
1
1
60 V/5 A, Schottky
Rectifier
Ultra-Fast Diode
Fairchild
Semiconductor
Fairchild
Semiconductor
D15XB60
SS-5-3.15 A
150 mm
1
1
1
600 V 15 A, Bridge
Diode
250 V/3.15 A, Fuse
Heat Sink [Primary]
Shindengen
Bussmann
50 mm
FAN73402
FAN7631
TSM103W
FL7930C
FSL117MRIN
KA431SMF2TF
1
2
1
1
1
1
1
Heat Sink
[Secondary]
LED Boost Switch
LLC Controller
Dual OP-Amp
PFC Controller
Green Mode FPS
Shunt Regulator
KA78L15 2
15 V Voltage
Regulator
JUMPER 1 Jumper
68 µH/SPI-SDH1360-680 2 68 µH, SMD Inductor
Fairchild
Semiconductor
Fairchild
Semiconductor
ST
Fairchild
Semiconductor
Fairchild
Semiconductor
Fairchild
Semiconductor
Fairchild
Semiconductor
Molex
TDK
© 2013 Fairchild Semiconductor Corporation 19 FEBFAN7631_L17U120A • Rev. 1.0.0
No. Part Reference
55 LP801
56 LX801, LX802
57 PCM801, PCS801, PCS802
58 QL801, QL802
59 QM801, QM802
60 QP802
61 QS801, QS853
62 QS802, QS803, QS854
63
RL801, RL802, RL804, RL806,
RL808, RL811, RL815, RL835,
RL836, RL813
64 RL803, RL805
65
RL807, RL809, JPM801, JPM802,
RS812
66 RL810
67
RP805, RM809, RP812, RL812,
RL814, RL818, RL819, RM823,
RM839, RS855, RS858
68 RL816, RL817, RL825, RL826
69 RS811, RL820, RL821, RM830
70 RL822 RL823
71
RM828, RL828, RL829, RS856,
RS857
72 RL832, RL841
73 RL834, RL839
74 RL837, RL840
75 RM827, RL838, RM841, RL842
76
RS808, RS815, RM826, RL847,
RL850
77 RM821, RL848, RL849
78 RM801, RM802
79 RM803
80 RM805
81 RM806
82 RM807
83 RM808, RM813
84 RM810
85 RM811, RS814
86 RM812, RM822, RP815
87 RM814
Part Value
PFC3819QM
CV630055
FOD817B
FDPF14N30
FCPF600N60Z
FCPF190N60E
KSPT2907A
KST2222AMTF
RC0805JR-07150KL
RC0805JR-073R3L
RC0805JR-070RL
RC0805JR-079k1L
RC0805JR-0710kL
RC1206JR-070R2L
RC0805JR-0712kL
RC0805JR-077k5L
RC0805JR-0715kL
RC0805JR-0775kL
RC0805JR-071k8L
2 Ω/2 W
RC0805JR-0739kL
RC0805JR-071kL
RC0805JR-07100kL
0.2
Ω/1 W
RC0805FR-0727kL
RC0805JR-071ML
RC0805JR-071k1L
RC0805FR-0724kL
RC0805JR-072M2L
RC0805FR-072k7L
RC0805JR-074k7L
RC0805JR-073R3L
RC0805JR-075k6L
Qty. Description Vendor
1
300 µH, PFC
Inductor
Line Filter
TDK
2
3 Opto-Coupler
TNC
Fairchild
Semiconductor
2 300 V/14 A MOSFET
Fairchild
Semiconductor
2
600 V/R
DSON
:0.19
Ω,
MOSFET
Fairchild
Semiconductor
1
600 V/R
DSON
:0.6
Ω,
MOSFET
Fairchild
Semiconductor
2
3
PNP Transistor
NPN Transistor
Fairchild
Semiconductor
Fairchild
Semiconductor
10 150 kΩ, 2012 SMD
2
5
1
5
2
2
2
4
5
4
4
2
1
1
2
3
2
1
1
1
2
3
1
11
3.3 Ω, 2012 SMD
0 Ω, 2012 SMD
9.1 kΩ, 2012 SMD
10 kΩ, 2012 SMD
0.2 Ω, 3216 SMD
12 kΩ, 2012 SMD
7.5 kΩ, 2012 SMD
15 kΩ, 2012 SMD
75 kΩ, 2012 SMD
1.8 kΩ, 2012 SMD
2 Ω, 2 W Resistor
39 kΩ, 2012 SMD
1 kΩ, 2012 SMD
100 kΩ, 2012 SMD
0.2
Ω, 1 W Resistor
27 kΩ/F, 2012 SMD
1 MΩ, 2012 SMD
1.1 kΩ, 2012 SMD
24 kΩ/F, 2012 SMD
2.2MΩ, 2012 SMD
2.7 kΩ/F, 2012 SMD
4.7 kΩ, 2012 SMD
3.3 Ω, 2012 SMD
5.6 kΩ, 2012 SMD
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Abel
Yageo
Yageo
Yageo
Abel
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
© 2013 Fairchild Semiconductor Corporation 20 FEBFAN7631_L17U120A • Rev. 1.0.0
No. Part Reference
88 RM817
89 RM820
90 RM825
91
RS816, RS817, RS818, RS819,
RS820, RM829
92 RS809, RM832, RM838
93 RM833, RM840
94 RM836
95 RM837
96 RM840
97 RP801, RP804, RP807, RP809
98 RP803
99 RP806
100 RP811
101 RP813
102 RP814
103 RP816
104 RS804, RS805
105 RS806, RS821, RS822, RS823
106 RS807
107 RS810
108 RS824, RS835
109 RT1, RT2
110 RV801, RV802
111 RX801, RX802, RX803
112 SW1
113 TM801
114 TS801
115 ZNR801
116 CL817, CL818, CM805, CS805
117
RS813, RP817, JPM803, JPM804,
RL830, RL831
118 ZDP801
Part Value
RC1206JR-0710RL
RC0805JR-0724kL
RC1206JR-071KL
RC0805JR-0720kL
RC0805JR-075k1L
RC1206JR-0718KL
RC0805JR-072k2L
RC0805FR-0710kL
RC0805FR-072k2L
RC0805JR-074M3L
RC0805JR-0710RL
RC0805JR-0747KL
RC0805JR-07150L
RC0805JR-0791KL
0.1 Ω/5 W
RC0805JR-074K7L
RC1206JR-07100KL
RC1206JR-0730KL
RC1206JR-070RL
RC0805JR-071k5L
RC1206JR-07120L
3D15
50 kΩ/0.5 W
RC1206JR-071ML
Toggle Switch
SRX43EM
EPC1717
10D561K
NC
NC
NC
3
1
1
1
1
4
1
2
4
1
1
1
1
1
1
4
1
3
2
1
1
1
1
2
Qty.
1
1
1
6
2
Description
10 Ω, 2012 SMD
24 kΩ, 2012 SMD
1 kΩ, 3216 SMD
20 kΩ, 2012 SMD
5.1 kΩ, 2012 SMD
18 kΩ, 2012 SMD
2.2 kΩ, 2012 SMD
10 kΩ/F, 2012 SMD
2.2 kΩ/F, 2012 SMD
4.3 MΩ, 2012 SMD
10 Ω, 2012 SMD
47 kΩ, 2012 SMD
150
Ω, 2012 SMD
91 kΩ, 2012 SMD
0.1 Ω, 5 W Resistor
4.7 kΩ, 2012 SMD
100 kΩ, 3216 SMD
30 kΩ, 3216 SMD
0
Ω, 3216 SMD
1.5 kΩ, 2012 SMD
390 Ω, 3216 SMD
NTC Thermistor
50 kΩ, Variable
Resistor
1
MΩ, 3216 SMD
3 Terminal Switch
LLC Transformer
LLC Transformer
MOV
6
1
Vendor
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Abel
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Daekwang S
Vishay
Yageo
Phonix
TDK
TDK
Samwha
© 2013 Fairchild Semiconductor Corporation 21 FEBFAN7631_L17U120A • Rev. 1.0.0
7. Transformer Design
5
N
P1
6
N
P2
N
A
7
9
10
7.1. Flyback Transformer (TS801)
Core: EPC1717 (TDK)
Bobbin: 10 Pin
ECP1717
2 N
S2
(3 à4)
N
S1
1
4
N
S2
3
2mm
Barrier
N
S1
(1 à2)
Figure 14. Transformer Pin Assignment and Configuration
N
P1
(10à9)
N
P2
(6 à7)
2mm
Barrier
N
P1
(5 à6)
No.
1
2
3
4
5
6
7
8
9
10
Table 2. Winding Specifications
Winding
N
P1
N
S1
N
P2
N
A
N
S2
Pin (S → F)
5 à 6
Wire
0.15
φ
Turns
100 Ts
Winding Method
Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
1 à 2 0.45
φ
12 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
6 à 7 0.25
φ
44 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
10 à 9 0.15
φ 37 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
3 à 4 0.25
φ 22 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
Table 3. Electrical Characteristics
Inductance [Lp]
Leakage [Ll]
Pin
5
– 7
5
– 7
Specifications
900 µH ±10%
55 µH
Remark
60 kHz, 1 V
60 kHz, 1 V at Short All Output Pins
© 2013 Fairchild Semiconductor Corporation 22 FEBFAN7631_L17U120A • Rev. 1.0.0
8
5
4
7.2. PFC Inductor (LP801)
Core: PFC3819QM(TDK)
Bobbin: PQM3819, 8 Pin
PFC3819QM
1
6
7
N
A
N
P
2
3
N
P
(1 à3)
Figure 15. Transformer Pin Assignment and Configuration
N
S
(7à6)
Table 4. Winding Specifications
No.
1
2
3
4
Winding
N
P
N
S1
Pin (S → F) Wire Turns Winding Method
1 à 3 0.1*65[Litz] 40 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
7 à 6 0.45
φ 4 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
Table 5. Electrical Characteristics
Inductance
Pin
1
– 3
Specifications
300 µH ±10%
Remark
60 kHz, 1 V
© 2013 Fairchild Semiconductor Corporation 23 FEBFAN7631_L17U120A • Rev. 1.0.0
7.3. LLC Transformer (TM801)
Core: SRX43EM (TDK)
Bobbin: EEX4333P12-1, 12 Pin
SRX43EM
2
4
N
P
7
N
S1
10
9
N
S2
12
N
P
(4à2) N
S2
(12à9)
N
S1
(10à7)
Figure 16. Transformer Pin Assignment and Configuration
Table 6. Winding Specifications
No.
1
2
3
4
Winding
N
P
N
S1
N
S2
Pin (S → F) Wire Turns Winding Method
4 à 2 0.1
φ * 60 [Litz]] 37 Ts Solenoid Winding
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
12 à9
10 à 7
0.08
φ *120[Litz]]
7 Ts
7 Ts
Insulation: Polyester Tape t = 0.025 mm, 3-Layer
Solenoid Winding
Solenoid Winding
Table 7. Electrical Characteristics
Inductance [Lp]
Leakage [Lr]
Pin
4 – 2
5 – 7
Specifications
810 µH ±10%
105 µH
Remark
100 kHz, 1 V
Short One of the Secondary Windings
© 2013 Fairchild Semiconductor Corporation 24 FEBFAN7631_L17U120A • Rev. 1.0.0
8. Performance of Evaluation Board
Table 8. Test Condition & Equipments
Ambient Temperature
Test Equipment
T
A
= 25°C
AC Power Source: PCR500L by Kikusui
Power Analyzer: PZ4000000 by Yokogawa
Electronic Load: PLZ303WH by KIKUSUI
Multi Meter: 2002 by KEITHLEY, 45 by FLUKE
Oscilloscope: 104Xi by LeCroy
Thermometer: Thermal CAM SC640 by FLIR SYSTEMS
LED: EHP-AX08EL/GT01H-P03 (3W) by Everlight
8.1. System Efficiency
System efficiency is measured in 85 ~ 140 V
AC
[low line, 60 Hz] and 180 ~ 300 V
AC
[high line, 50 Hz] input voltage ranges. The results are for PFC and LLC converters in which a single LED channel can be connected and measured in the rated load condition
[50 V/2.5 A] 30 minutes after AC power is turned on.
Figure 17. System Efficiency
Table 9. System Efficiency
Input Voltage
85 V
AC
[60 Hz]
120 V
AC
[60 Hz]
140 V
AC
[60 Hz]
180 V
AC
[50 Hz]
230 V
AC
[50 Hz]
300 V
AC
[50 Hz]
Output
Voltage[V]
49.69
49.69
49.69
49.69
49.69
49.69
© 2013 Fairchild Semiconductor Corporation
Output
Current [A]
2.503
2.503
2.507
2.502
2.503
2.501
Input
Power [W]
141.70
138.10
137.10
135.80
135.20
134.60
Output
Power [W]
Efficiency
124.37
124.37
124.57
124.32
124.37
124.27
87.77%
90.06%
90.86%
91.55%
91.99%
92.33%
25 FEBFAN7631_L17U120A • Rev. 1.0.0
System efficiency is measured in 85 ~ 140 V
AC
[low line, 60 Hz] and 180 ~ 300 V
AC
[high line, 50Hz] input voltage ranges. The results are for PFC and LLC converters in which a single LED channel can be connected and measured in the 50% load condition
[50 V/1.25 A] 30 minutes after AC power is turned on.
Figure 18. System Efficiency
Table 10. System Efficiency
Input Voltage
85 V
AC
[60 Hz]
120 V
AC
[60 Hz]
140 V
AC
[60 Hz]
180 V
AC
[50 Hz]
230 V
AC
[50 Hz]
300 V
AC
[50 Hz]
Output
Voltage[V]
49.71
49.71
49.71
49.71
49.71
49.71
Output
Current [A]
1.252
1.253
1.253
1.254
1.254
1.252
Output
Voltage [V]
70.80
69.80
69.60
69.50
69.30
69.10
Output
Power [W]
Efficiency
62.24
62.29
62.29
62.34
62.34
62.24
87.91%
89.24%
89.49%
89.69%
89.95%
90.07%
Table 11 shows stand-by power consumption of 85 V
AC
~ 140 V
AC
[low line, 60 Hz] and
180 ~ 300 V
AC
[high line, 50 Hz] input voltage ranges. The results are measured when the
PS-ON switch is turned off.
Table 11. System Efficiency
Input Voltage
85 V
AC
[60 Hz]
120 V
AC
[60 Hz]
140 V
AC
[60 Hz]
180 V
AC
[50 Hz]
230 V
AC
[50 Hz]
300 V
AC
[50 Hz]
Input Power [W]
0.283
0.306
0.315
0.319
0.341
0.397
© 2013 Fairchild Semiconductor Corporation 26 FEBFAN7631_L17U120A • Rev. 1.0.0
8.2. Power Factor and Total Harmonic Discharge (THD)
Power factor and THD were measured in 85 ~ 140 V
AC
[low line, 60 Hz] and 180 ~
300 V
AC
[high line, 50 Hz] input voltage ranges. The measured data were results for the overall system with two channel LED loads connected.
Figure 19. Power Factor & Total Harmonic Distortion
Table 12. Power Factor & Total Harmonic Distortion
Input Voltage Output Current Output Voltage
85 V
AC
[60 Hz]
120 V
AC
[60 Hz]
140 V
AC
[60 Hz]
180 V
AC
[50 Hz]
230 V
AC
[50 Hz]
300 V
AC
[50 Hz]
2.503 A
2.503 A
2.507 A
2.502 A
2.503 A
2.501 A
49.69 V
49.69 V
49.69 V
49.69 V
49.69 V
49.69 V
Power Factor
0.998
0.997
0.995
0.992
0.980
0.945
THD
4.58%
4.65%
4.74%
5.32%
7.89%
15.13%
© 2013 Fairchild Semiconductor Corporation 27 FEBFAN7631_L17U120A • Rev. 1.0.0
8.3. Constant-Current and Voltage Regulation
Table 13 and Figure 20 show the typical CC/CV performance on the board; showing very
stable CC performance over a wide input range. The results are for PFC and LLC converters with a single LED channel connected and measured with E-Load [CR Mode].
Table 13. Constant-Current Regulation by Output Voltage Change (25 V~ 50 V)
Input Voltage
85 V
AC
/ 60 Hz
120 V
AC
/ 60 Hz
230 V
AC
/ 50 Hz
300 V
AC
/ 50 Hz
Min. Max.
V
OUT
[V] I
OUT
[mA] V
OUT
[V] I
OUT
[mA]
49.60 2552 49.70 2560
49.60
49.70
49.70
2552
2552
2552
49.70
49.90
49.90
2560
2560
2560
CV CC
±0.03% ±0.04%
±0.03% ±0.04%
±0.05% ±0.04%
±0.05% ±0.04%
Figure 20. Constant-Current Regulation, Measured by E-Load [CR Mode]
© 2013 Fairchild Semiconductor Corporation 28 FEBFAN7631_L17U120A • Rev. 1.0.0
8.4. Overall Startup Performance
Figure 21 and Figure 22 show the startup performance; including flyback, boost, LLC
resonant converter, and single-channel boost converter at rated output load. The output load current starts flowing after about 469 ms and 340 ms for input voltage 85 V
AC
and
300 V
AC
condition when the AC input power switch turns on; CH1: V
DD_Flyback
(10 V / div), CH2: V
IN
(200 V / div), CH3: V
LED
(50 V / div), CH4: I
LED
(0.5 A / div),
Time Scale: 200 ms / div.
469 ms 340 ms
Figure 21. V
IN
= 85 V
AC
/ 60 Hz
Figure 22. V
IN
= 300 V
AC
/ 50 Hz
Figure 23 and Figure 24 show the startup and stop performance for the PS-ON switch
operation; including boost, LLC resonant converter, and single-channel boost converter.
The output load current starts flowing about 59 ms after the PS-ON switch was turned on and is disconnected when the PS-ON switch was turned off in standby status; CH1: V
DD-
PFC
(10 V / div), CH2: V
PS-ON
(2 V / div), CH3: V
LED
(50 V / div), CH4: I
LED
(0.5 A / div).
59 ms
Figure 23. PS-ON [100 ms/dvi]
© 2013 Fairchild Semiconductor Corporation 29
Figure 24. PS-OFF [5 ms/dvi]
FEBFAN7631_L17U120A • Rev. 1.0.0
8.5. Startup Performance in Flyback Stage
Figure 25 and Figure 26 show the startup performance of the flyback converter. The
output voltage is raised after about 395 ms and 297 ms at 85 V
AC
and 300 V
AC
input voltage, respectively, when the AC input power switch turns on; CH1: V
DD-FLYBACK
(10 V / div), CH2: V
IN
(200 V / div), CH3: V
5V
(2 V / div), CH4: V
DD- FAN73402
(10 V / div), Time Scale: 200 ms / div.
395 ms
297 ms
Figure 25. V
IN
= 85 V
AC
/ 60 Hz
Figure 26. V
IN
= 300 V
AC
/ 50 Hz
Figure 27 and Figure 28 show the startup and stop performance for the flyback converter
according to PS-ON switch operation. Each output voltage is raised at the same time when the PS-ON switch is turned on and V
DD-FAN73402
drops under UVLO after 100 ms since PS-ON switch was turned off in standby status; CH1: V
DD-PFC
(10 V / div), CH2:
V
PS-ON
(2 V / div), CH3: V
5V
(2 V / div), CH4: V
DD-FAN73402
(10 V / div), Time Scale:
200 ms / div.
Figure 27. PS-ON
© 2013 Fairchild Semiconductor Corporation 30
Figure 28. PS-OFF
FEBFAN7631_L17U120A • Rev. 1.0.0
8.6. Startup Performance in PFC Stage
Figure 29 and Figure 30 show the startup performance; including flyback and boost
converter at the rated output load. The PFC output voltage is raised after about 429 ms and 339 ms, respectively, for input voltage 85 V
AC
and 300 V
AC
condition when the AC input power switch turns on; CH1: V
DD-FLYBACK
(10 V / div), CH2: V
IN
(200 V / div),
CH3: V
OUT_PFC
(200 V / div), CH4: V
RDY
(2 V / div), Time Scale: 200 ms / div.
429 ms 339 ms
Figure 29. V
IN
= 85 V
AC
/ 60 Hz
Figure 30. V
IN
= 300V
AC
/ 50 Hz
Figure 31and Figure 32 show the startup and stop performance for the boost converter
according to PS-ON switch operation at rated output load. The PFC output voltage is raised rapidly when the PS-ON switch is turned on and V
DD-PFC
drops below UVLO and
PFC output starts discharging PFC output capacitors when PS-ON switch was turned off in standby status; CH1: V
DD-PFC
(10 V / div), CH2: V
PS-ON
(2 V / div), CH3: V
OUT-PFC
(200 V / div), CH4: V
RDY
(2 V / div) .
Figure 31. PS-ON, [200 ms/div]
© 2013 Fairchild Semiconductor Corporation 31
Figure 32. PS-OFF, [500 ms/div]
FEBFAN7631_L17U120A • Rev. 1.0.0
8.7. Startup Performance in LLC Stage
Figure 33 and Figure 34 show the startup performance; including flyback, boost, and
LLC converter. The LLC output voltage is raised after about 455 ms and 337 ms, respectively, for input voltage 85 V
AC
and 300 V
AC
condition when the AC input power switch turns on; CH1: V
DD-FLYBACK
(10 V / div), CH2: V
IN
(200 V / div), CH3: V
OUT-LLC
(20 V / div), CH4: I
OUT-LLC
(2 A / div), Time Scale: 200 ms / div.
455 ms 337 ms
Figure 33. V
IN
= 85 V
AC
/ 60 Hz
Figure 34. V
IN
= 300 V
AC
/ 50 Hz
Figure 35 and Figure 36 show the startup and stop performance for the LLC converter
according to the PS-ON switch operation at rated output load. The LLC output current is raised up to the rated voltage within 50 ms after the PS-ON switch is turned on and the output current drops to zero quickly when the PS-ON switch is turned off in standby status; CH1: V
DD-LLC
(10 V / div), CH2: V
PS-ON
(2 V / div), CH3: V
OUT_LLC
(20 V / div),
CH4: I
OUT_LLC
(2 A / div), Time Scale: 200 ms / div.
Figure 35. PS-ON
© 2013 Fairchild Semiconductor Corporation 32
Figure 36. PS-OFF
FEBFAN7631_L17U120A • Rev. 1.0.0
8.8. Key Waveforms for Input and Output
Figure 37 and Figure 38 show AC input and output waveforms at 85 V
AC
and 300 V
AC line voltage and rated output load condition, respectively; CH1: I
IN
(5 A / div), CH2: V
IN
(200 V / div), CH3: V
LED
(50 V / div), CH4: I
LED
(0.5 A / div), Time Scale: 5 ms / div.
Figure 37. V
IN
= 85 V
AC
/ 60 Hz, 100% Dim
Figure 38. V
IN
= 300 V
AC
/ 50 Hz, 100% Dim
Figure 39 and Figure 40 show AC input and output waveforms at 85 V
AC
and 300 V
AC line voltage and 50% output load condition, respectively; CH1: V
IN
(2 A / div), CH2: V
IN
(200 V / div), CH3: V
OUT
(50 V / div), CH4: I
LED
(0.5 A / div), Time Scale: 5 ms / div.
Figure 39. V
IN
= 85 V
AC
/ 60 Hz, 50% Dim
Figure 40. V
IN
= 300 V
AC
/ 50 Hz, 50% Dim
© 2013 Fairchild Semiconductor Corporation 33 FEBFAN7631_L17U120A • Rev. 1.0.0
Figure 41 and Figure 42 show AC input and output waveforms at 85 V
AC
and 300 V
AC line voltage and 10% output load condition, respectively; CH1: V
IN
(1 A / div), CH2: V
IN
(200 V / div), CH3: V
OUT
(50 V / div), CH4: I
LED
(0.5 A / div), Time Scale: 5 ms / div. In case of 300 V
AC
, PFC was operated in Burst Mode, so switching pulse were skipped.
Figure 41. V
IN
= 85 V
AC
/ 60 Hz, 10% Dim
Figure 42. V
IN
= 300 V
AC
/ 50 Hz, 10% Dim
8.9. Key Waveforms for Flyback Stage
Figure 43 and Figure 44 show key waveforms of the flyback stage according to the PS-
ON switch operation at rated output load condition; CH1: I
DS- ICS802
(0.5 A / div), CH2:
V
DS-ICS802
(200 V / div), CH3: V
PS-ON
(2 V / div) .
Time Scale: 200 ms / div.
53 kHz
Figure 43. PS-ON
© 2013 Fairchild Semiconductor Corporation 34
Figure 44. PS-OFF
FEBFAN7631_L17U120A • Rev. 1.0.0
8.10. Key Waveforms for PFC Stage
Figure 45 and Figure 46 show key waveforms of PFC stage at 85 V
AC
line voltage and rated output load condition; CH1: I
DS-QP802
(2 A / div), CH2: V
DS-QP802
(200 V / div), CH3:
V
AK-DP802
(200 V / div), CH4: I
AK-DP802
(2 A / div).
53 kHz
Figure 45. V
IN
= 85 V
AC
/ 60 Hz, [5 ms/div] Figure 46. V
IN
= 85 V
AC
/ 60 Hz, [5 µs/div]
Figure 47 and Figure 48 show key waveforms of PFC stage at 85 V
AC
line voltage and no-load condition; CH1: I
DS_QP802
(0.5 A / div), CH2: V
DS_QP802
(200 V / div), CH3:
V
AK_DP802
(200 V / div), CH4: I
AK_DP802
(0.5 A / div).
179 kHz
Figure 47. V
IN
= 85 V
AC
/ 60 Hz, [5 ms/div] Figure 48. V
IN
= 85 V
AC
/ 60 Hz, [2 µs/div]
© 2013 Fairchild Semiconductor Corporation 35 FEBFAN7631_L17U120A • Rev. 1.0.0
Figure 49 and Figure 50 show key waveforms of the PFC stage at 300 V
AC
line voltage and rated output load condition; CH1: I
DS_QP802
(2 A / div), CH2: V
DS_QP802
(200 V / div),
CH3: V
AK_DP802
(200 V / div), CH4: I
AK_DP802
(2 A / div).
62 kHz
Figure 49. V
IN
= 300 V
AC
/ 50 Hz, [2 ms/div]
Figure 50. V
IN
= 300 V
AC
/ 50 Hz, [5 µs/div]
Figure 51 and Figure 52 show key waveforms of the PFC stage at 300 V
AC
line voltage and no-load condition; CH1: I
DS_QP802
(0.5 A / div), CH2: V
DS_QP802
(200 V / div), CH3:
V
AK_DP802
(200 V / div), CH4: I
AK_DP802
(0.5 A / div).
Burst
Figure 51. V
IN
= 300 V
AC
/ 50 Hz, [5 ms/div]
Figure 52. V
IN
= 300 V
AC
/ 50 Hz, [2 µs/div]
© 2013 Fairchild Semiconductor Corporation 36 FEBFAN7631_L17U120A • Rev. 1.0.0
8.11. Key Waveforms for LLC Stage
Figure 53 and Figure 54 show key waveforms in the primary side of the LLC converter at
rated output load condition; CH1: V
GATE-QM802
(10 V / div), CH2: V
GATE-QM801
(10 V / div),
CH3: V
Cr-CM816
(200 V / div), CH4: I
Lr-TM801
(1.0 A / div).
212 kHz
Figure 53. Rated Load [5 ms/div] Figure 54. Rated Load [2 µs/div]
Figure 55 and Figure 56 show key waveforms in the secondary side of the LLC converter
at rated output load condition; CH1: I
_Secondary
(2.0 A / div), CH2: V
AK_DM802
(100 V / div),
CH3: V
AK_DM802
(100 V / div).
Figure 55. Rated Load [5 ms/div] Figure 56. Rated Load [2 µs/div]
© 2013 Fairchild Semiconductor Corporation 37 FEBFAN7631_L17U120A • Rev. 1.0.0
Figure 57 and Figure 58 show key waveforms in the primary side of the LLC converter at
no-load condition; CH1: V
GATE_QM802
(10 V / div), CH2: V
GATE_QM801
(10 V / div), CH3:
V
Cr_CM816
(200 V / div), CH4: I
Lr_TM801
(1.0 A / div) .
Figure 58. No Load [2 µs/div] Figure 57. No Load [5 ms/div]
Figure 59 and Figure 60 show key waveforms in the secondary side of the LLC converter
at no-load condition; CH1: I
_Secondary
(0.5 A / div), CH2: V
AK_DM802
(100 V / div), CH3:
V
AK_DM802
(100 V / div).
Figure 59. No Load [5 ms/div] Figure 60. No Load [2 µs/div]
© 2013 Fairchild Semiconductor Corporation 38 FEBFAN7631_L17U120A • Rev. 1.0.0
8.12. Key Waveforms for Single-Channel Boost Stage
Figure 61 and Figure 62 show key waveforms of a single-channel boost converter at rated
output load condition; CH1: I
DS_QL802
(2.0 A / div), CH2: V
DS_QL802
(100 V / div), CH3:
V
AK_DL802
(100V / div), CH4: I
AK_DL802
(2.0 A / div).
133 kHz
Figure 61. Rated Load [2 ms/div] Figure 62. Rated Load [2 us/div]
Figure 63 and Figure 64 show key waveforms of a single-channel boost converter at 10%
load condition; CH1: I
DS_QL802
(2.0
A / div), CH2: V
DS_QL802
(100 V / div), CH3: V
AK_DL802
(100 V / div), CH4: I
AK_DL802
(2.0 A / div).
132 kHz
Figure 63. 10% Load [2 ms/div] Figure 64. 10% Load [2 µs/div]
© 2013 Fairchild Semiconductor Corporation 39 FEBFAN7631_L17U120A • Rev. 1.0.0
8.13. Dimming Performance
Figure 65 and Figure 66 show key waveforms for analog dimming performance of a
single-channel boost converter at 10% ADIM (V
ADIM
: 0.12 V) and 100% BDIM; CH1:
I
LED
(0.2 A / div), CH2: V
GATE-QL802
(5.0 V / div), CH3: V
BDIM
(5.0 V / div), CH4: V
ADIM
(0.5 V / div).
Figure 65. 10% ADIM [2 ms/div] Figure 66. 10% ADIM [2 µs/div]
Figure 67 and Figure 68 show key waveforms for PWM dimming performance of a
single-channel boost converter at 100% ADIM (V
ADIM
: 1.2 V) and 1% BDIM; CH1: I
LED
(0.5 A / div),
(0.5 V / div).
CH2: V
GATE-QL802
(5.0 V / div), CH3: V
BDIM
(5.0 V / div), CH4: V
ADIM
200 Hz
Figure 67. 1% BDIM [2 ms/div] Figure 68. 1% BDIM [10 µs/div]
© 2013 Fairchild Semiconductor Corporation 40 FEBFAN7631_L17U120A • Rev. 1.0.0
700
600
500
400
300
200
100
0
0
Figure 69 and Figure 70 show the FAN73402’s analog [ADIM] and PWM [BDIM]
dimming characteristic curves.
700
600
500
400
300
200
100
0
0.1
0.3
0.5
0.7
ADIM Voltage [V]
Figure 69. Analog Dimming Characteristics
0.9
1.1
ADIM
1.3
20 40
BDIM: PWM Duty[%]
60
Figure 70. PWM Characteristics
80
BDIM
100
© 2013 Fairchild Semiconductor Corporation 41 FEBFAN7631_L17U120A • Rev. 1.0.0
8.14. LED Short / Open Protection at Multi-Channel Output
Figure 71 and Figure 72 show waveforms for output voltage and current when an LED is
shorted and recovered in one of the LED channels [100 V/0.6 A]; CH1: I
LED
(0.5 A / div),
CH2: V
LED
(50 V / div), CH3: V
GATE-QL802
(5 V / div), Time Scale: 100 ms / div.
LED Short
Figure 71. LED Short Figure 72. Recover from LED Short
Figure 73 and Figure 74 show waveforms for output voltage and current when an LED is
opened and recovered in one of the LED channels [100 V/0.6 A]; CH1: I
LED
(0.5 A / div),
CH2: V
LED
(50 V / div), CH3: V
GATE-QL802
(5 V / div), Time Scale: 100 ms / div.
LED Open
Figure 73. LED Open Figure 74. Recover from LED Open
© 2013 Fairchild Semiconductor Corporation 42 FEBFAN7631_L17U120A • Rev. 1.0.0
8.15. Operating Temperature
Figure 75 shows temperatures measured for the primary and secondary active
components in the top side at 85 V
AC
line voltage and rated output load [two LED channels: 100 V/1.2 A].
Primary Secondary
Transformer:
72.6
ºC
PFC MOSFET:
65.2
ºC
Bridge Diode:
64.2
ºC
LLC MOSFET:
59.4
ºC
Boost MOSFET:
61.8
ºC
LLC Rectifier:
67.5
ºC
Figure 75. Board Temperature - V
IN
[85 V
AC
]
Figure 76 shows temperatures measured for the primary [top] and secondary [bottom]
active components at 300 V
AC
line voltage and rated output load [two LED channels:
100 V/1.2 A].
Primary
Bridge Diode:
50.8
ºC
PFC MOSFET:
54.0
ºC
LLC MOSFET:
51.2
ºC
ICL801_FAN73402:
76.8
ºC
Bottom
ICL802_FAN73402:
82.1
ºC
FSL117MRIN:
53.9
ºC
Figure 76. Board Temperature - V
IN
[300 V
AC
]
Boost Diode DL802:
69.5
ºC
Note: The FAN 73402 temperature can be reduced by changing PCB layout.
© 2013 Fairchild Semiconductor Corporation 43 FEBFAN7631_L17U120A • Rev. 1.0.0
9. Revision History
Rev.
1.0.0
Date
July. 2013
Description
Initial Release
WARNING AND DISCLAIMER
Replace components on the Evaluation Board only with those parts shown on the parts list (or Bill of Materials) in the Users’ Guide. Contact an authorized Fairchild representative with any questions.
The Evaluation board (or kit) is for demonstration purposes only and neither the Board nor this User’s Guide constitute a sales contract or create any kind of warranty, whether express or implied, as to the applications or products involved. Fairchild warrantees that its prod ucts meet Fairchild’s published specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to any products described herein to improve reliability, function, or design. Either the applicable sales contract signed by Fairchild and Buyer or, if no contract exists, Fairchild’s standard Terms and Conditions on the back of Fairchild invoices, govern the terms of sale of the products described herein.
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR
USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR
THE RIGHTS OF OTHERS.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS
WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
ANTI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized
Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.
© 2013 Fairchild Semiconductor Corporation 44 FEBFAN7631_L17U120A • Rev. 1.0.0
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Key Features
- Universal Line Operation
- Flyback Bias Regulation
- PFC Boost Converter
- LLC Resonant Converter
- Single-Channel Boost Converters
- Constant Current & Voltage
- Dimming Control
- High Efficiency
- Low Standby Power
