FAN7528 Fairchild Semiconductor, FAN7528 Datasheet - Page 2

• Manufacturer Part Number: FAN7528
• Description: Dual Output Critical Conduction Mode PFC Controller
• Manufacturer: Fairchild Semiconductor

FAN7528 Rev. 1.0.1
Typical Application Diagrams
Internal Block Diagram
MOT
ZCD
Vcc
CS
8
4
5
3
6.7V
40k
Saw Tooth
Generator
8pF
1.4V
0.8V
GND
6
1.5V
AC
12V
In
Figure 2. Functional Block Diagram of FAN7528
Comparator
1V
8.5V
Zero Current
OCP
Figure 1. Typical Boost PFC Application
Detector
UVLO
Disable
Vcc
MOT
V
AUX
R2
R1
COMP
COMP
2
FAN7528
2
ZCD
R
N
ZCD
AUX
Internal
L
Error
2.5V
Bias
Amp
Ref
160us
Timer
R
S
GND
Gm
CS
Q
INV
D
Vref
Dual Output Reference
Disable
Generator
1.5V/2.5V
OVP
Vo
Co
0.45V 0.35V
2.66V
Output
Drive
Vcc
2.55V
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7
1
OUT
INV