VIPER31 Off-Line High-Voltage Converter

Product Highlights > VIPER31 Off-Line High-Voltage Converter

            VIPER31 Off-Line High-Voltage Converter
                    STMicroelectronics' energy saving off-line high-voltage converter embeds a jittered PWM controller and an avalanche rugged power section
    

Image of STMicroelectronics VIPER31 Off-Line High-Voltage Converter STMicroelectronics' VIPer31, a high-voltage converter from the rectified mains, is a newcomer in VIPerPlus family. VIPer31 embeds a jittered PWM controller (30 kHz, 60 kHz, or 132 kHz options) and an 800 V avalanche rugged power section. Its 24 V_DC drain-start voltage allows an ultra-wide line input voltage range and enhances flexibility in numerous consumer and industrial applications.

Its high versatility allows to be used in the most commonly-used HV converter topologies (isolated flyback with photocoupler or PSR, non-isolated flyback with direct feedback, buck, and buck-boost) adopting a very minimal BoM thanks to its high integration level (error amplifier, sense FET, HV startup) and wide V_CC supply voltage range.

Features

Ultra-low power supply consumption: 20 mW standby at 265 V low EMI
Low startup voltage
Jittered frequency
High-voltage start-up eliminates auxiliary winding
Easily meets all energy efficiency regulations and helps to achieve high efficiency
Able to work with a very wide input voltage range
Enables users to build buck converter with high output current capability
Reduces EMI filter cost and helps meet the EN550022 Class B specifications
Enables design without auxiliary winding in case of flyback converter, saves cost for very low-power SMPS

Applications

Low-power SMPS for home appliances
Home automation
Small industrial
Lighting
Smart home
Metering
Motion control
Low power adapters