VIPER22ADIP

Overview

The VIPER22ADIP-E is a high-voltage power switch integrating a current mode PWM controller and a 730V rugged power MOSFET on a single silicon chip. It operates with a fixed switching frequency of 60 kHz and supports a wide VDD supply voltage range from 9V to 38V. The device utilizes an 8-pin PDIP package for through-hole mounting, featuring an operating temperature range from -40°C to 150°C. Key electrical parameters include a maximum output voltage capability of 730V, a startup voltage of 14.5V, and a maximum duty cycle of 16%. It incorporates automatic burst mode for low-load conditions and offers overtemperature, overcurrent, and overvoltage protection with auto-restart functionality.

Feature Summary

• Integrates a dedicated current mode PWM controller with a high-voltage power MOSFET on one chip
• Features automatic burst mode operation to minimize input power consumption under light load conditions
• Includes comprehensive protection mechanisms such as overtemperature, overcurrent, and overvoltage protection with auto-restart
• Provides a wide VDD supply voltage range accommodating auxiliary supply variations

Applications

• Offline power supplies for battery charger adapters
• Standby power supplies for televisions or monitors
• Auxiliary supplies for motor control systems

Procurement Notes

Verify the specific suffix 'DIP' confirms the through-hole package variant required for your design. Ensure the '-E' suffix is included if RoHS compliance is mandatory for your project specifications. Cross-reference the manufacturer part number with official STMicroelectronics documentation to confirm active status and availability before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a compact, integrated solution for low-power offline applications. The fixed 60 kHz frequency simplifies EMI filter design compared to jittering variants. Consider the 8-pin DIP package constraints for PCB layout and thermal management requirements in enclosed environments.

Part Context

This device belongs to the VIPerPlus family of highly integrated power switches designed for cost-sensitive, low-power AC-DC conversion. It replaces discrete controller and MOSFET solutions, reducing bill of materials and assembly complexity. The integration allows for smaller form factors while maintaining robust performance in standalone offline converter topologies.

Replacement Considerations

Direct substitutes within the same series include the SOIC-8 packaged versions such as VIPER22AS-E or VIPER22ASTR-E. Verify pin compatibility and thermal dissipation characteristics when transitioning between DIP and surface-mount packages.