VIPER122 - STMicroelectronics

VIPER122 High voltage converter

The device is a high performance high voltage converter that combines a 730 V rugged power MOSFET with PWM control. The device embeds high voltage startup and current sense circuitry, which helps reduce the number of components in a BoM. Frequency jittering spreads the EMI and allows the use of a smaller filter. The burst mode feature provides very low input.

Features

 730 V avalanche rugged power MOSFET
 PWM controller
 3.3 V reference voltage
 Frequency jittering
 40 mW no load input power at 230 VAC
 Short-circuit protection
 Thermal shutdown Description The device is a high performance high voltage converter that combines a 730 V rugged power MOSFET with PWM control. The device embeds high voltage startup and current sense circuitry, which helps reduce the number of components in a BoM. Frequency jittering spreads the EMI and allows the use of a smaller filter. The burst mode feature provides very low input power consumption at light loads. Fig.