Typical Application Circuit (Lighting) (Continued)
Application
LED Lighting
Device
FAN7346
Input Voltage Range
380V
LED String
4-String
C123
TM2
D201
C201
C202 C203
V LED
V AUX
R129
Q104
RS8
R128
R131 R123 R132
C115
R133
D202
CS6
RS10
Q103
U102
D109
R201
R130
LV CC
VDL
HV CC
D203
U201
Q1
Q2
Q3
Q4
D107
RT
C124
C204
R203
C206
C205
R136
R135
R134
C126
AR
VCTR
R202
D204
IC1
PC101
C127
C125
C114
R127
CS
SG
PG
C116
RS13
CS9
CS8
Fault
CMP
RS12
RS19
RS27
RS20
RS28
RS21
RS24
V DD
CS17
R126
PC101
CS14
CS15
CS12
CS16
Figure 33. LED Lighting Driver
? 2011 Fairchild Semiconductor Corporation
FAN7346 ? 1.0.0
16
www.fairchildsemi.com
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