VIPER27 STMicroelectronics, VIPER27 Datasheet - Page 13

• Manufacturer Part Number: VIPER27
• Description: VIPerPlus family: fixed frequency high performance off line high voltage converter
• Manufacturer: STMicroelectronics

VIPER27
6
Typical circuit
Figure 20. Min-features flyback application
Figure 21. Full-features flyback application
AC IN
AC IN
AC IN
AC IN
C3
BR
BR
C3
BR
CONT
C1
Rlim
V
CONTROL
Vcc
DD
C1
BR
CONT
Doc ID 15133 Rev 5
FB
Rh
Rl
C4
R2
V
Rov p
CONTROL
Vcc
DD
SOURCE
C2
DRAIN
D2
FB
GND
C4
R2
Daux
SOURCE
R1
D1
C2
DRAIN
D2
GND
R1
D1
D3
D3
OPTO
C5
U2
OPTO
C5
U2
R3
R4
Typical circuit
R3
R4
C6
C6
Vout
GND
Vout
GND
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R5
R6
R5
R6