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FAN501MPX 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN501MPX
Offline DCM / CCM Flyback PWM Controller for Charger Applications
Fairchild Semiconductor
FAN501MPX Datasheet PDF : 17 Pages
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Application Diagram
AC IN
Fuse
R
SNS
C
SNS
Bridge
Choke
Photo
coupler
C
FB
C
BLK1
L
F
C
BLK2
R
HV
R
SNP
C
SNP
D
SNP
TX
D
R
N
P
N
S
C
O
D
G
R
Bias1
R
Bias2
R
COMP
R
SD
NTC
FAN501
HV
FB
GATE
COMP
CS
SD
VDD
SGND
VS
PGND
R
G2
R
G1
R
CSF
D
VDD
R
CS
Photo
coupler
Shunt
regulator
R
VS1
N
A
C
Comp2
R
Comp1
C
Comp1
+
V
o
-
R
F1
R
F2
C
VDD
C
VS
R
VS2
Figure 2.
Typical Application
Internal Block Diagram
VDD
HV 8
VDD 2
SD Fault
OTP Fault
VSOVP Fault
Latch
Protection
VSUVP Fault
VDD OVP Fault
VDD UVLO
17.5V/5.8V
Latch released
Internal bias 5V
VDD OVP Fault
PWM Control Block
OCP Fault
7.5V
V
CS-LIM
Burst/Green
5V
Mode
Slope
Compensation
Z
FB
FB 6
5V
I
SD
SD 7
V
SD-TH
COMV
A
V
VSUVP Fault
V
VS-UVP
Frequency
Jumping
Σ
V
SAW
COMI
I
O
Estimator
LEB
CC Control
Correction
SD Fault
VSOVP Fault
V
SH
V
VS-OVP
S/H
Zero Current
Detector
5
SGND
S/H = Sample and Hold
3
VS
Figure 3.
Function Block Diagram
Line Voltage
Detector
1 GATE
10 PGND
9 CS
4 COMP
© 2014 Fairchild Semiconductor Corporation
FAN501
• Rev.
1.0.0
2
www.fairchildsemi.com
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