viper20sp STMicroelectronics, viper20sp Datasheet - Page 11

• Manufacturer Part Number: viper20sp
• Description: Smps Primary I.c.
• Manufacturer: STMicroelectronics

Figure 13: Off Line Power Supply With Auxiliary Supply Feedback
Figure 14: Off Line Power Supply With Optocoupler Feedback
AC IN
AC IN
F1
F1
R 9
R9
C 1
C1
R2
R2
C 5
C5
TR 2
TR2
O S C
OSC
13V
V DD
13V
VDD
BR 1
-
+
BR1
-
+
C 2
C 4
C11
C2
D3
C4
C11
C OM P
D3
COMP SOURCE
D 1
SO UR CE
R 7
R1
R 3
C 6
DR AIN
D1
C 3
R7
R1
R3
C6
DRAIN
C3
V IP er20
VIPer20/SP/DIP - VIPer20A/ASP/ADIP
VIPer20
T R1
U2
IS O 1
TR1
D 2
C 7
R6
C10
D2
C 8
C7
C10
R 4
R 5
L2
FC00401
C 9
L2
C9
+V cc
G ND
F C00411
+Vcc
GND
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