VIPER15LDTR

Overview

The VIPER15LDTR is an AC/DC converter from the VIPerPlus family, designed as a high-performance offline switch. It integrates an 800 V avalanche-rugged power MOSFET with a PWM current mode controller in a single package. The device utilizes a flyback topology and operates at a switching frequency of 136 kHz. It supports a supply voltage range from 8.5 V to 23.5 V and delivers up to 10 W of output power. The component functions within a temperature range of -40°C to +150°C TJ and features low operating supply current of 2 mA.

Feature Summary

• Integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control for compact design
• Includes embedded high-voltage startup circuitry and sense-FET to minimize external components
• Provides comprehensive protection mechanisms including drain current limit, thermal shutdown, and overload protection

Applications

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

Procurement Notes

Verify the specific ordering suffix LDTR to confirm the tape and reel packaging configuration. Ensure compatibility with surface mount assembly processes given the 16-SOIC narrow package. Confirm RoHS compliance status through official documentation before integration. Check for any recent product change notifications that may affect long-term availability or specifications.

Selection Notes

Select this component for applications requiring a complete off-line solution with minimal external parts. The integrated high-voltage startup reduces bill of materials complexity. Consider the 136 kHz switching frequency for EMI management and transformer sizing. Evaluate the 10 W power capability against load requirements to ensure adequate headroom under all operating conditions.

Part Context

This part belongs to the VIPerPlus family of high-voltage converters from STMicroelectronics. These devices are designed to simplify power supply design by integrating the power switch and controller. The VIPer15 variant specifically targets applications needing moderate power levels with high reliability and efficiency standards.

Replacement Considerations

VIPER16LDTR is listed as a direct replacement option.