VIPER50A

Overview

The VIPER50A is a fixed-frequency offline converter from the VIPerPlus family, integrating a PWM controller and a high-voltage Vertical Power MOSFET (700V/1.5A) on a single silicon chip using VIPower M0 Technology. It supports flyback topologies with switching frequencies up to 200kHz. The device provides secondary power capabilities of 25W in wide-range conditions or 50W in single-range configurations. Key electrical parameters include an 8V to 15V Vcc supply range, 11V startup voltage, and 700V breakdown voltage.

Feature Summary

• Integrates a state-of-the-art PWM circuit with an optimized high-voltage Vertical Power MOSFET on a single chip.
• Features automatic burst mode operation for low standby power consumption without additional components.
• Includes comprehensive protection mechanisms such as over-temperature protection, current limiting, and under-voltage lock-out.

Applications

• Offline power supplies with secondary power capability up to 50W
• Adapters for consumer electronics
• Battery chargers

Procurement Notes

Verify component status carefully as this part may be obsolete or not recommended for new designs. Confirm availability through authorized distributors only. Ensure compatibility with existing PCB layouts and thermal management requirements before procurement. Check for end-of-life notifications from STMicroelectronics.

Selection Notes

Select this component for cost-effective offline power supply designs requiring integrated control and power switching. It is suitable for applications needing reduced component count compared to discrete solutions. Consider its fixed-frequency operation and specific power ratings when designing for 25W or 50W outputs.

Part Context

The VIPER50A belongs to the VIPerPlus family of high-voltage switchers. It utilizes VIPower M0 technology to combine control logic and power MOSFETs. This integration simplifies design by reducing the number of external components required for offline converter implementations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult STMicroelectronics for current alternatives if this part is obsolete.