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FAN7535M 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN7535M
PFC & Ballast Control IC
Fairchild Semiconductor
FAN7535M Datasheet PDF : 12 Pages
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Internal Block Diagram
VDDB
1
RT
3
CPH
5
10V REG
15V SHUNT
REGULATOR
IPH
=0.6*IRT
BIAS & SYSTEM LATCH
PRE-HEAT
CTRL
IPH
4V
CPH
0A
CPH
3V 5V
BGR UVLO
BIAS TSD
UVLO
RQ
SQ
SYSHALT
SDH
SDL
CPH<3V
Yes
1.6uA
9.6uA
No
OSCILLATOR
DEAD-TIME CTRL
VDDH/VDD
LSH
VDDH/VDD
LSH
SDL
SDH
HIGH-SIDE DRIVER
VB
UVLO
Noise
Canceller
SQ
RQ
VS
SET
RESET
LOW-SIDE GATE DRIVER
DELAY
5V/3V
SDL
ADAPTIVE ZVS ENABLE LOGIC
SQ
SDH
R Q
RESET
SYSHALT
ADAPTIVE
ZVS CONTROLLER
TRANSITION
SENSING
24
VB
22
HO
20
VS
18
LO
6
GND
VDDP
17
-
+
12V
8.5V
Disable
ZCD
13
6.7V
-
+
Zero Current Detector
CS
12
1.4V
1.5V
40k
8pF
2.9V
MOT
10
Saw Tooth
Generator
Ramp signal
Zero Current
0.8V
Comparator
1V offset
Timer
S
Q
R
2.5V Ref
Internal Bial
VDDP
Driver
Output
16
OUT
OVP
-
+
2.675V
2.5V
Disable
Vref
-
0.45V
+
0.35V
Error
Amplifier
Gm
7
1V~5V
Range
INV
8
Comp
Figure 2. Functional Block Diagram (2chips-1PKG)
© 2007 Fairchild Semiconductor Corporation
FAN7535 Rev. 1.0.0
3
www.fairchildsemi.com
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