FAN7530MX 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN7530MX Datasheet PDF : 20 Pages
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Typical Application Diagrams
L
D
VO
AC
IN
VAUX
NAUX
RZCD
I2 R2 ZCD
CO
VCC
FAN7530
INV
MOT
CS
I1 COMP
R1
GND
FAN7530 Rev. 00
Figure 1. Typical Boost PFC Application
Internal Block Diagram
VCC 8
UVLO
12V 8.5V Disable
ZCD 5
6.7V 1.4V 1.5V
Zero Current
Detector
2.5V
Ref
Vref1
Internal
Bias
150ms
Timer
S
Q
R
VCC
Drive
Output
7 OUT
13V
OVP
2.675V 2.5V
CS 4
MOT 2
40k
8pF
0.8V
Current Protection
Comparator
Ramp
Signal
Saw Tooth
Generator
1V Offset
Disable
0.45V 0.35V
Error
Vref1
Amplifier
Gm
1V~5V
Range
1 INV
6
GND
3
COMP
Figure 2. Functional Block Diagram of FAN7530
FAN7530 Rev. 00
© 2006 Fairchild Semiconductor Corporation
FAN7530 Rev. 1.0.2
2
www.fairchildsemi.com
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