FAN7529M データシートの表示（PDF） - Fairchild Semiconductor
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FAN7529M Datasheet PDF : 20 Pages
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Typical Application Diagrams
AC
IN
L
D
VO
VAUX
NAUX
RZCD
R2 ZCD
CO
VCC
FAN7529
INV
MOT
CS
COMP
R1
GND
FAN7529 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
Timer
S
Q
R
VCC
Drive
Output
7 OUT
OVP
2.675V 2.5V
CS 4
40k
8pF
0.8V
Current Protection
Comparator
Ramp
Signal
MOT 3
Saw Tooth
Generator
2.9V
1V Offset
Disable
0.45V 0.35V
Error
Vref1
Amplifier
Gm
1V~5V
Range
1 INV
6
GND
2
COMP
Figure 2. Functional Block Diagram of FAN7529
FAN7529 Rev. 00
© 2006 Fairchild Semiconductor Corporation
FAN7529 Rev. 1.0.2
2
www.fairchildsemi.com
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