VIPER222 – high voltage MOSFET with a PWM control

VIPER222 – high voltage MOSFET with a PWM control


The VIPER222 device is a high performance high voltage converter that combines a 730 V rugged power MOSFET with a PWM control. The device embeds the high voltage startup and the current sense circuit, avoiding the use of extra components in the BoM. Frequency jittering spreads the EMI and allows the use of a small filter. The burst mode technique allows to obtain a very low input power consumption at light load.

Key features

  • 730 V avalanche rugged power MOSFET
  • PWM controller
  • 1.2 V reference voltage
  • Frequency jittering
  • 40 mW no load input power at 230 VAC
  • Short-circuit protection
  • Thermal shutdown

more information:

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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