Product Summary

The VIPER12A is a low power off line smps primary switcher. It combines a dedicated current mode PWM controller with a high voltage Power MOSFET on the same silicon chip. Typical applications of the VIPER12A include battery charger adapters, standby power supplies for TV or monitors, auxiliary supplies for motor control, etc.

Parametrics

VIPER12A absolute maximum ratings: (1)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)Continuous Drain Current: Internally limited A; (4)Supply Voltage: 0 to 50 V; (5)Feedback Current: 3 mA; (6)Electrostatic Discharge: Machine Model (R=0W; C=200pF): 200 V, Charged Device Model: 1.5 kV; (7)Junction Operating Temperature: Internally limited ℃; (8)Case Operating Temperature: -40 to 150 ℃; (9)Storage Temperature: -55 to 150 ℃.

Features

VIPER12A 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

VIPER12A pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
VIPER12ADIP
VIPER12ADIP

STMicroelectronics

Current Mode PWM Controllers 700V 0.36A SMPS

Data Sheet

Negotiable 
VIPer12ADIP - E
VIPer12ADIP - E

Other


Data Sheet

Negotiable 
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
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
VIPER12ADIP-E
VIPER12ADIP-E

STMicroelectronics

Current Mode PWM Controllers Low Power OFF-Line SMPS Primary

Data Sheet

0-1: $0.51
1-10: $0.46
10-100: $0.41
100-250: $0.38
VIPER12AS
VIPER12AS

STMicroelectronics

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

Data Sheet

Negotiable