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FAN7530 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. FAN7530
Description  Critical Conduction Mode PFC Controller
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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 2 page
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© 2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN7530 Rev. 1.0.0
2
Typical Application Diagrams
Figure 1. Typical Boost PFC Application
Internal Block Diagram
Figure 2. Functional Block Diagram of FAN7530
GND
ZCD
INV
V
CC
AC
IN
V
O
COMP
FAN7530
CS
MOT
R1
R2
LD
N
AUX
V
AUX
R
ZCD
I2
I1
C
O
FAN7530 Rev. 00
INV
Error
Amplifier
Vref
OVP
COMP
8pF
40k
2.5V
Ref
Internal
Bias
150ms
Timer
V
CC
ZCD
CS
UVLO
6.5V
12V 8.5V
2.675V
2.5V
Current Protection
Comparator
1V Offset
MOT
GND
Sawtooth
Generator
Zero Current
Detector
R
S
Q
2
6
4
5
3
1
8
Vref
Gm
0.8V
Disable
0.45V 0.35V
Disable
1.5V
1.4V
7
V
CC
OUT
Drive
Output
Ramp
Signal
1V~5V
Range
13V
FAN7530 Rev. 00



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