viper50b STMicroelectronics, viper50b Datasheet - Page 11

• Manufacturer Part Number: viper50b
• 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
R9
F1
R9
C1
R2
C5
C1
R2
C5
TR2
TR2
OSC
OSC
13V
VDD
13V
VDD
BR1
-
+
BR1
-
+
C2
C4
C11
C2
C4
C11
D3
D3
COMP SOURCE
COMP SOURCE
D1
D1
R7
R1
R3
R7
C6
R1
R3
C6
DRAIN
DRAIN
C3
C3
VIPer50B
VIPer50B
TR1
TR1
U2
ISO1
D2
C7
D2
C7
C10
R6
C10
C8
FC00301
R4
R5
L2
C9
L2
VIPER50B/BSP
C9
+Vcc
GND
+Vcc
GND
FC00311
11/20