VIPER22ADIP-E

Overview

The VIPER22ADIP-E is a high-voltage power converter 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 voltage range from 9V to 38V. The device utilizes an 8-pin DIP package for through-hole mounting. It provides overtemperature, overcurrent, and overvoltage protection with auto-restart capabilities. Typical output power reaches up to 12W in SO-8 and 7W in DIP configurations.

Feature Summary

• Integrates a dedicated current mode PWM controller with a high voltage power MOSFET on the same silicon chip
• Features automatic burst mode operation to minimize input power consumption under low load conditions
• Includes auxiliary undervoltage lockout with hysteresis and a high voltage start-up current source
• Provides comprehensive protection against overtemperature, overcurrent, and overvoltage using HICCUP mode

Applications

• Off-line power supplies for battery charger adapters
• Standby power supplies for televisions or monitors
• Auxiliary supplies for motor control systems

Procurement Notes

Verify the specific package variant when ordering, as the VIPER22A-E series includes both DIP-8 and SO-8 options. Confirm that the required application falls within the specified thermal and electrical limits. Ensure compatibility with the intended PCB layout for through-hole assembly. Cross-reference the datasheet revision to confirm feature consistency regarding protection modes and operating temperatures.

Selection Notes

Select this component for designs requiring a compact primary-side solution without external driver components. The integrated high-voltage startup simplifies the auxiliary supply design compared to standard controllers. Consider the fixed 60 kHz frequency when designing magnetic components. Evaluate the thermal performance requirements given the integration of the power switch and controller on one die.

Part Context

This part belongs to the VIPER22A-E family of low-power off-line SMPS primary switchers. It shares core architecture with variants like the VIPER22AS-E but differs in physical packaging. The DIP-8 format facilitates prototyping and applications requiring through-hole technology. It serves as a cost-effective alternative to discrete controller and MOSFET combinations.

Replacement Considerations

Direct functional equivalents include the VIPER22AS-E for surface mount implementations. Other members of the VIPER22A-E family offer identical electrical characteristics with different package styles.