VIPER114XSTR

Overview

The VIPER114XSTR is an energy-saving off-line high voltage converter from STMicroelectronics, designed for AC/DC conversion. It integrates a rugged 800 V avalanche power MOSFET with a PWM current mode controller. The device supports flyback, buck, and buck-boost topologies. Key electrical parameters include a maximum drain current of 480 mA, a switching frequency of 30 kHz ±7%, and a supply voltage range of 4.5 V to 30 V. It features integrated high-voltage startup, current sensing, and thermal shutdown.

Feature Summary

• Integrates an 800 V avalanche rugged power MOSFET with a PWM current mode controller
• Features frequency jittering to spread EMI and reduce filter costs
• Includes burst mode operation for low input power consumption at light loads
• Embeds high voltage startup and current sense circuitry to minimize external components

Applications

• Flyback converter designs
• Buck converter designs
• Buck-boost converter designs

Procurement Notes

Verify the specific suffix 'XSTR' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the component meets all relevant environmental compliance standards applicable to your region before finalizing procurement orders.

Selection Notes

Select this component for applications requiring ultra-low no-load power consumption, specifically less than 10 mW at 230 VAC. It is suitable for systems needing wide input voltage ranges supported by the 800 V breakdown voltage. Ensure the design accommodates the 30 kHz switching frequency and 480 mA current limit constraints.

Part Context

This part belongs to the VIPER family of high voltage converters. It shares architectural similarities with other members like the VIPER115 but differs in specific current ratings and switching frequencies. The XSTR suffix indicates a specific packaging variant within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.