FAN102 Fairchild Semiconductor, FAN102 Datasheet - Page 2

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FAN102

Manufacturer Part Number
FAN102
Description
The primary-side PWM controller significantly simplifies power supply design that requires CV and CC regulation capabilities
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2008 Fairchild Semiconductor Corporation
FAN102 Rev. 1.0.3
Application Diagram
Internal Block Diagram
R
GND
VDD
C O MR
C
R
C O MI
C O MI
C
7
6
C O MR
Rectifier
Bridge
Diode
16V/5V
Green Mode
AC Line
Frequency
Controller
+
Hopping
-
OSC with
C
R
C O MV
C O MV
1
2
3
4
C S
C OMR
C OMI
C OMV
V
FAN102
DD
Internal Bias
C
DL
Good
COMI
3
Comparator
Figure 3.
S G ND
G ATE
V
V DD
+
PWM
-
+
28V
-
V S
DL
Figure 2.
Comparator
PWM
8
7
6
5
+
-
R
OTP
S TAR T
Functional Block Diagram
-
+
R
COMV
G ATE
Typical Application
R
Comparator
C
4
S N 1
DD
Protection Reset
D
PWM
EA_V
R
DD
C S
2
Slope Compensation
C
+
-
S N1
C
D
S
EA_I
S N
S
R
S
R
+
-
Compensation
Cable Drop
Q
Q
Q
Q
COMR
-
+
2
R
N
1.3V
R
N
S1
A
S2
P
Compensation
Temperature
2.5V
N
C
S
Soft-Driver
S N2
Leading-Edge
D
Blanking
R
R
Estimator
Estimator
Detector
S N2
t
V
I
C
DIS
O
O
O
V
DD
Brownout
Protection
I
O
8
1
5
VS
CS
V
Gate
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