VIPERGAN50TR

Overview

The VIPERGAN50TR is an offline high-voltage converter from the VIPerPlus family, integrating a 650 V Power GaN HEMT transistor with embedded senseFET and high-voltage startup. It is designed for quasi-resonant flyback converters capable of delivering up to 50 W output power across a wide input range. The device features QR operation with dynamic blanking time and adjustable valley synchronization delay to maximize efficiency under varying line and load conditions. Additional technical capabilities include valley-lock for constant valley skipping, input voltage feedforward compensation, adaptive burst mode for light-load management, and frequency jittering for EMI suppression.

Feature Summary

• Integrates a 650 V Power GaN HEMT transistor with embedded senseFET and high-voltage startup within a single package.
• Supports quasi-resonant flyback topology with dynamic blanking time and adjustable valley synchronization delay functions.
• Includes built-in soft-start function and comprehensive protection mechanisms such as thermal shutdown and overcurrent protection.

Applications

• General purpose isolated flyback converters
• Smartphone and tablet adapters
• Laptop power supplies

Procurement Notes

Verify that the specific suffix 'TR' corresponds to the tape-and-reel packaging configuration required for automated surface-mount assembly processes. Confirm that the component status aligns with current production availability, as lifecycle changes may affect long-term supply continuity. Ensure that the ordering information matches the exact part number designation provided by the manufacturer to avoid compatibility issues with existing design files.

Selection Notes

Select this component when designing systems requiring high power density and efficient energy conversion in compact form factors. The integration of GaN technology allows for reduced passive component sizes compared to traditional silicon solutions. Consider the device's ability to maintain high efficiency across wide input voltage ranges and its support for advanced power management modes suitable for strict standby power regulations.

Part Context

This component belongs to the VIPerGaN series, representing STMicroelectronics' initial entry into GaN-based power conversion within the VIPerPlus portfolio. It combines a high-performance low-voltage quasi-resonant PWM controller chip with a 650 V E-mode GaN HEMT. This integration targets applications demanding smaller physical footprints while maintaining robust performance and reliability standards typical of modern consumer electronics power supplies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.