Product Summary

The VIPER12AS is a low power off line smps primary switcher.

Parametrics

VIPER12AS absolute maximum ratings: (1)VDS(sw) Switching Drain Source Voltage (Tj=25 to 125℃): -0.3 to 730 V; (2)VDS(st) Start Up Drain Source Voltage (Tj=25 to 125℃): -0.3 to 400 V; (3)ID Continuous Drain Current: Internally limited; (4)VDD Supply Voltage: 0 to 50 V; (5)IFB Feedback Current: 3 mA; (6)VESD Electrostatic Discharge: Machine Model (R=0W; C=200pF): 200V. Charged Device Model: 1.5kV; (7)Tj Junction Operating Temperature: Internally limited; (8)Tc Case Operating Temperature: -40 to 150 ℃; (9)Tstg Storage Temperature: -55 to 150℃.

Features

VIPER12AS features: (1)Fixed 60 khz switching frequency; (2)9V TO 38V wide range vdd voltage; (3)Current mode control; (4)Auxiliary undervoltage lockout with hysteresis; (5)High voltage start up current source; (6)Overtemperature, overcurrent and overvoltage protection with autorestart.

Diagrams

VIPER12AS block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
VIPER12AS
VIPER12AS

STMicroelectronics

Current Mode PWM Controllers 700V 0.36A SMPS DISC-BY-STM-12/04

Data Sheet

Negotiable 
VIPER12AS-E
VIPER12AS-E

STMicroelectronics

Current Mode PWM Controllers 700V 0.36A SMPS

Data Sheet

0-1: $0.51
1-10: $0.48
10-100: $0.43
100-250: $0.41
VIPER12ASTR-E
VIPER12ASTR-E

STMicroelectronics

Current Mode PWM Controllers Low Power OFF-Line SMPS Primary Switch

Data Sheet

0-1: $0.51
1-25: $0.48
25-100: $0.46
100-250: $0.41