VIPER15HD

Overview

The VIPER15HD is a high-voltage integrated circuit from the VIPerPlus family, designed for offline flyback converters. It integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control. Key electrical parameters include a switching frequency of 225 kHz and a startup voltage of 14 V. The device supports a supply voltage range of 8.5 V to 23.5 V and delivers up to 10 W of output power. It features comprehensive protection mechanisms including current limiting, overtemperature shutdown, and overvoltage protection. The component is housed in a 16-SOIC package with a junction temperature operating range of -40°C to 150°C.

Feature Summary

• Integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control for efficient energy conversion.
• Includes embedded high-voltage startup and sense-FET to minimize external component count.
• Provides robust protection against overload, short-circuit, overvoltage, and thermal runaway conditions.

Applications

• Offline flyback converter designs
• AC/DC power supply systems
• General-purpose isolated power conversion

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors due to end-of-life status. Confirm replacement part numbers such as VIPER16HD or VIPER17HD for active production availability. Ensure compliance with RoHS3 specifications and check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component for applications requiring high input voltage ranges and compact form factors. The integrated HV startup reduces bill of materials complexity. Consider the 225 kHz fixed frequency for EMI filter design. Evaluate thermal management capabilities given the 150°C maximum junction temperature rating for reliable operation in constrained environments.

Part Context

The VIPER15HD belongs to the VIPerPlus series, which serves as a benchmark for low standby consumption in AC/DC converters. This family integrates high-voltage MOSFETs with advanced control logic to support minimal external component counts. The series is optimized for cost-effective and space-constrained power supply designs across various industrial and consumer electronics sectors.

Replacement Considerations

Direct substitutes include VIPER16HD and VIPER17HD. Verify pin compatibility and electrical parameter alignment before implementation.