VIPER53ESP-E

Overview

The VIPER53ESP-E is an offline switch integrating a high-voltage MDMesh power MOSFET and current mode PWM controller in a PowerSO-10 package. It supports flyback topologies with switching frequencies up to 300kHz. The device provides 40W output capability for wide-range inputs or 65W for single European voltage ranges. Key electrical parameters include a 620V breakdown voltage, 9mA supply current, and operation within -40°C to +150°C junction temperature.

Feature Summary

• Integrates enhanced current mode PWM controller with high voltage MDMesh power MOSFET
• Includes automatic burst mode for efficient standby conditions compliant with Blue Angel standards
• Features integrated high voltage start-up current source and undervoltage lockout with hysteresis
• Provides comprehensive protection including overtemperature shutdown, overload, and short-circuit control

Applications

• Offline power supplies requiring secondary regulation
• Industrial tools and motor drives
• General purpose equipment power conversion

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm package type and pinout compatibility. Ensure the component matches the required thermal performance for the intended application. Cross-reference the ordering code with the manufacturer's active status to avoid obsolete variants. Confirm RoHS compliance requirements align with project specifications before finalizing procurement.

Selection Notes

Select this component when designing flyback converters needing primary-side regulation flexibility or secondary loop failure protection. The extended VDD range offers transformer design advantages over standard versions. Consider the PowerSO-10 package for surface-mount assembly needs. Evaluate thermal dissipation requirements based on the target output power level and ambient operating conditions.

Part Context

This part belongs to the VIPer53-E family of offline primary switches from STMicroelectronics. It combines advanced power management features with robust protection mechanisms. The series is designed for cost-effective AC/DC converter implementations. It serves as a monolithic solution for medium-power applications requiring high reliability and efficiency.

Replacement Considerations

Official substitutes include the VIPER53SP-E and VIPER53ESPTR-E. Verify package compatibility and electrical parameter alignment before substitution. Consult the manufacturer's cross-reference guide for confirmed alternatives.