ST’s high-voltage AC-DC converters combine an advanced pulse width modulation (PWM) controller with a high-voltage power MOSFET in a single package.
This makes them ideally suited for offline switch mode power supplies (SMPS) with output power spanning from a few to a few tens of watts. The portfolio offers a wide choice of products so you can find the best fit for the most popular topologies, including quasi-resonant, flyback and buck configurations with either isolated or non-isolated implementations, backed up by an extremely large palette of protection features to make sure that even the most stringent reliability targets are met. External component count is also kept at a minimum to help you get the most out of your design at least cost.
The VIPer® high-voltage converter series is composed of monolithic ICs integrating a PWM controller and a 700 V HV vertical power MOSFET.
The VIPerPlus series features an 800 V avalanche-rugged power MOSFET and leading-edge PWM controller and consumes less than 30 mW (at 265 VAC) in standby. It also comes with the largest choice of protection schemes and supports different topologies.
The Altair series has a built-in 900 V avalanche-rugged power MOSFET and a PWM controller specifically designed for opto-less implementation, thus significantly reducing component count.
The VIPerGaN series of high voltage power converter is enriched by the introduction of GaN HEMT (high-electron-mobility transistor) technology. The use of a GaN transistor leads to higher power density, higher efficiency, higher switching frequency with consequent smaller and lighter PCB, simplifying the design of SMPS and improving the overall performances.
Featured Videos
Recommended for you
New VIPer0P with unique zero-power mode
Introducing the VIPer0P high-voltage converter with jittered fixed-frequency current-mode PWM control for simplified EMI compliance and zero-power mode (ZPM) with an astounding < 4 mW (at 230 VAC) consumption. VIPer0P can enter and exit ZPM when the low voltage input/output pins (OFF or ON) are pulled to ground so a small and inexpensive safety extreme low voltage (SELV) switch can replace the bulky mains switch. The VIPer0P embeds a set of protections – including over-current protection (OCP), VCC clamp, maximum duty cycle and flux runaway – to enable a more robust and safer SMPS design.
The VIPer0p is ideal for all SMPS up to 7 W having a wide input voltage range including:
- Home appliances compliant with EuP Lot6 energy regulation
- Industrial equipment or digital consumer goods
Explore all the key benefits of the VIPer0P high-voltage converter with unique zero-power mode with the STEVAL-ISA174V1 non-isolated, flyback 6 W SMPS evaluation board.
- VIPER26 Fixed frequency VIPer plus family
- VIPER31 Energy Saving Off-line High Voltage Converter
- VIPER12A-E Fixed frequency off line converter
- VIPER26K 1050 V High voltage converter
- VIPER53-E Fixed frequency off line converter
- VIPER35 VIPerPlus family: Quasi-resonant high performance off line high voltage converter
- VIPER17 VIPerPlus family: Fixed frequency 6W high performance off line high voltage converter
- VIPER122 High voltage converter
- VIPERGAN100 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- ALTAIR05T-800 Off-line all-primary-sensing switching regulator
- VIPER22AS-E Low power off-line SMPS primary switcher
- VIPER22ADIP-E Fixed frequency off line converter
- VIPERGAN65 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- VIPER27 VIPerPlus family: Fixed frequency 12W high performance off line high voltage converter
- VIPER11 Energy saving off-line high voltage converter
- VIPER0P VIPerPlus family: Zero-power off-line high voltage converter
- VIPER01 VIPerPlus family: Low voltage energy saving fixed frequency high voltage converter
- VIPER25 VIPerPlus family: Quasi-resonant high performance off line high voltage converter
- VIPER28 VIPerPlus family: Peak power fixed frequency off line high voltage converter
- VIPER22A-E Fixed frequency off line converter
- VIPER53E-E Fixed frequency off line converter
- VIPER01B Energy saving off-line high voltage converter
- VIPER50A-E Fixed frequency off line converter
- VIPER222 High voltage converter
- VIPER06 VIPerPlus family: Energy saving high voltage converter for direct feedback
- VIPER38 VIPerPlus family: Peak power fixed frequency high voltage converter
- ALTAIR04-900 Off-line all-primary-sensing switching regulator
- VIPERGAN50 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- VIPER37 VIPerPlus family: Fixed frequency 15W high performance off line high voltage converter
- VIPER16 VIPerPlus family: Energy saving 6W high voltage converter with direct feedback
- VIPERGAN100 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- VIPERGAN50 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- VIPERGAN65 Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT
- ALTAIR05T-800 Off-line all-primary-sensing switching regulator
- ALTAIR04-900 Off-line all-primary-sensing switching regulator
- VIPER12A-E Fixed frequency off line converter
- VIPER22A-E Fixed frequency off line converter
- VIPER22AS-E Low power off-line SMPS primary switcher
- VIPER22ADIP-E Fixed frequency off line converter
- VIPER53E-E Fixed frequency off line converter
- VIPER50A-E Fixed frequency off line converter
- VIPER53-E Fixed frequency off line converter
- VIPER11 Energy saving off-line high voltage converter
- VIPER0P VIPerPlus family: Zero-power off-line high voltage converter
- VIPER01 VIPerPlus family: Low voltage energy saving fixed frequency high voltage converter
- VIPER26 Fixed frequency VIPer plus family
- VIPER31 Energy Saving Off-line High Voltage Converter
- VIPER25 VIPerPlus family: Quasi-resonant high performance off line high voltage converter
- VIPER28 VIPerPlus family: Peak power fixed frequency off line high voltage converter
- VIPER26K 1050 V High voltage converter
- VIPER01B Energy saving off-line high voltage converter
- VIPER222 High voltage converter
- VIPER06 VIPerPlus family: Energy saving high voltage converter for direct feedback
- VIPER35 VIPerPlus family: Quasi-resonant high performance off line high voltage converter
- VIPER17 VIPerPlus family: Fixed frequency 6W high performance off line high voltage converter
- VIPER122 High voltage converter
- VIPER38 VIPerPlus family: Peak power fixed frequency high voltage converter
- VIPER37 VIPerPlus family: Fixed frequency 15W high performance off line high voltage converter
- VIPER16 VIPerPlus family: Energy saving 6W high voltage converter with direct feedback
- VIPER27 VIPerPlus family: Fixed frequency 12W high performance off line high voltage converter
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Power Supply Design Tool
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations 
LED Lighting Design Tool
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data 
Digital Power Workbench
Provides a step-by-step optimized design of power section and control loop Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs 
Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node