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VIPER319 Key Features

  • 800 V avalanche-rugged power MOSFET to cover ultra-wide VAC input range
  • Embedded HV startup and sense FET
  • Current mode PWM controller
  • Drain current limit protection (OCP)
  • 850 mA (VIPER318)
  • 990 mA (VIPER319)
  • Wide supply voltage range: 4.5 V to 30 V
  • < 20 mW @ 230 VAC in no-load
  • < 430 mW @ 230 VAC, 25 0mW output load
  • Jittered switching frequency reduces the EMI filter cost

Related STMicroelectronics Datasheets

Part Number Description
VIPER31 Energy saving offline high voltage converter
VIPER318 Energy saving offline high voltage converter
VIPer31SP BATTERY CHARGER
VIPer32 OFF LINE SMPS PRIMARY SWITCHER
VIPer32DIP OFF LINE SMPS PRIMARY SWITCHER

VIPER319 Description

The VIPER31 device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control.. The 800 V breakdown allows extended input voltage range to be applied, as well as to reduce the size of the DRAIN snubber circuit. The IC can meet the most stringent energy-saving standards as it has very low consumption and operates in pulse frequency modulation at light load.