VIPER50-E

Overview

The VIPER50-E is a fixed frequency offline converter utilizing VIPower M0 Technology. It integrates a high-performance PWM circuit with an optimized 700V/1.5A Vertical Power MOSFET on a single silicon chip. The device supports offline power supplies with secondary power capabilities of 25W in wide-range conditions and 50W in single-range or doubler configurations. Key electrical parameters include an adjustable switching frequency up to 200 kHz, current mode control, and an internally trimmed Zener reference.

Feature Summary

• Integrates state-of-the-art PWM circuitry with a high-voltage Vertical Power MOSFET
• Supports both primary and secondary regulation loops with reduced component count
• Features automatic burst mode operation for low standby consumption
• Includes over-temperature protection and soft-start/shutdown control

Applications

• Offline power supplies with secondary power capability up to 25W (wide range)
• Offline power supplies with secondary power capability up to 50W (single range)
• Power supplies using doubler configuration

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm exact voltage ratings and package variations. Confirm end-of-life status as product lifecycle information may vary by region. Ensure compatibility with existing PCB footprints and thermal management requirements before integration into new designs.

Selection Notes

Select this component for applications requiring integrated high-voltage switching with minimal external components. Consider the 700V rating and 1.5A current limit when designing transformer specifications. Evaluate the need for primary versus secondary regulation based on efficiency and cost constraints relative to discrete solutions.

Part Context

This part belongs to the VIPer100 family of fixed frequency offline converters manufactured by STMicroelectronics. It shares architectural similarities with other members like the VIPER50A-E and VIPER100-E, differing primarily in power handling capabilities and internal MOSFET specifications within the same technology node.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer cross-reference guides for verified alternatives.