VIPER15HN

Overview

The VIPER15HN is an offline switch from the VIPerPlus family, integrating a 800 V avalanche-rugged power MOSFET with PWM current-mode control. It supports flyback topology with a fixed switching frequency of 136 kHz and a maximum duty cycle of 80%. The device delivers up to 10 W output power with an output current of 420 mA. Operating within a supply voltage range of 8.5 V to 23.5 V, it features low quiescent current and operates across a temperature range of -40 °C to +150 °C. Packaged in a 7-DIP through-hole format.

Feature Summary

• Integrates an 800 V avalanche-rugged power MOSFET for extended input voltage coverage.
• Includes embedded high-voltage startup and sense-FET to minimize external components.
• Features comprehensive protection mechanisms including overload, short-circuit, overvoltage, and thermal shutdown.

Applications

• Offline AC/DC converters
• Flyback converter designs
• Low power switchers

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm package type and pinout configuration. Ensure compatibility with required isolation standards and thermal management requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring integrated high-voltage switching with minimal external circuitry. Consider the fixed 136 kHz frequency and 10 W power limit when designing transformer specifications. Evaluate thermal performance within the specified operating temperature range to ensure system reliability.

Part Context

The VIPER15HN belongs to the VIPerPlus series, designed for energy-saving offline converters. It combines high-voltage CMOS technology with a rugged power MOSFET, enabling compact designs with reduced bill-of-materials. This series targets cost-sensitive applications requiring reliable power conversion with built-in safety features.

Replacement Considerations

Official direct substitutes include the VIPER16LN and VIPER17LN. Verify electrical parameters and pin compatibility before substitution.