Experience silent power with the advanced 700 V GaN converter

Combining high performance with silent operation for an enhanced user experience

ST introduces the new VIPerGaN flyback converter series. This device features a proprietary technique enabling silent operation across all load levels. Engineered for compact, high-efficiency USB-PD chargers, fast battery chargers, and auxiliary power supplies, these converters leverage GaN technology to offer unique advantages in performance and user experience, eliminating audible noise. The VIPerGaN50W and VIPerGaN65W converters integrate a 700 V GaN power transistor, and quasi-resonant PWM control IC in a single QFN 5x6 package to deliver efficient power levels up to 85W.

vipergan65w

VIPERGAN65W

VIPERGAN65W

65 W advanced quasi-resonant offline high-voltage converter with 700 V E-mode GaN HEMT. It supports a wide input voltage range and delivers up to 85W, while maintaining low standby power below 30mW.

vipergan50w

VIPERGAN50W

VIPERGAN50W

50 W advanced quasi-resonant offline high-voltage converter with 700 V E-mode GaN HEMT. It supports a wide input voltage range and delivers up to 75W, while maintaining low standby power below 30mW.

Designed for a wide range of applications

smart-metering

Electricity metering

fridge

Appliances

air-conditioner

Commercial HVAC

led-illumination

LED street lighting

Key features

  • Quasi-resonant fly-back controller
  • 700 V e-mode power GaN transistor
  • Multimode operation
  • Embedded sense FET and HV start-up
  • < 30mW standby power consumption
  • 240 kHz max operational frequency
  • Frequency jitter for EMI suppression
  • Valley sync adjustment
  • Feedforward compensation
  • Compact QFN 5x6 packaging

Start your design

evlvipgan65wf

EVLVIPGAN65WF evaluation board

EVLVIPGAN65WF evaluation board

24 V / 65 W reference design based on VIPERGAN65W. A comprehensive solution for designing and developing secondary-side synchronous (SSR) isolated quasi-resonant (QR) flyback converter.

evlvipgan50wf

EVLVIPGAN50WF evaluation board

EVLVIPGAN50WF evaluation board

15 V / 50 W reference design based on VIPERGAN50W. A comprehensive solution for designing and developing secondary-side synchronous (SSR) isolated flyback converter for general-purpose offline power applications. 

eDesignSuite

eDesignSuite: the smart design tool

eDesignSuite: the smart design tool

Our online Power Management Design Center enables engineers to rapidly design and optimize switch-mode power converters across multiple topologies and configurations. It supports applications including power supplies, LED lighting, and battery chargers, accelerating the engineering workflow with advanced simulation, calculation, and configuration tools.