VIPER50ASP-E

Overview

The VIPER50ASP-E is an offline converter utilizing VIPower M0 Technology, integrating a high-performance PWM circuit with a 700V/1.5A Vertical Power MOSFET on a single silicon chip. It supports flyback topologies for secondary power capabilities of 25W in wide-range conditions and 50W in single-range or doubler configurations. The device operates with an adjustable switching frequency up to 200 kHz and features current mode control. Key electrical parameters include a 700V breakdown voltage, 1.5A internal switch capability, and a maximum duty cycle of 50%. It incorporates an internally trimmed Zener reference and requires minimal external components compared to discrete solutions.

Feature Summary

• Integrates a state-of-the-art PWM controller and optimized high-voltage Vertical Power MOSFET on one chip
• Supports both primary and secondary regulation loops while reducing component count significantly
• Features automatic burst mode operation for efficient standby performance without extra components
• Includes comprehensive protection mechanisms such as over-temperature shutdown and soft-start

Applications

• Offline power supplies requiring 25W in wide-range input conditions
• Single-range AC mains powered applications delivering up to 50W
• Power supplies utilizing voltage doubler configurations
• Designs prioritizing reduced bill of materials through integrated control and power stages

Procurement Notes

Verify the specific suffix ASP against official STMicroelectronics documentation to confirm package type and pinout compatibility. Confirm availability status as distribution channels may list this part as obsolete or end-of-life. Ensure design-in requirements match the 700V rating and 200kHz frequency limits specified in the datasheet. Cross-reference thermal management needs for the PowerSO-10 package under intended load conditions.

Selection Notes

Select this component when designing flyback converters that require integration of control logic and power switching to minimize board space. It is suitable for applications needing adjustable current limiting and precise timing via external components. Consider the 700V MOSFET rating for standard universal input ranges. Evaluate the need for secondary regulation if higher accuracy is required beyond primary loop control.

Part Context

This device belongs to the VIPer50 family from STMicroelectronics, designed using VIPower M0 technology. It represents a consolidated solution for offline power conversion, replacing discrete MOSFET and controller combinations. The series is characterized by high integration levels, allowing for simplified designs in consumer and industrial power adapters while maintaining robust protection features.

Replacement Considerations

Official substitutes within the same family include the VIPER50A-E. Verify pin compatibility and electrical specifications before substitution. No other cross-family replacements are confirmed in public documentation.