VIPER20-E

Overview

The VIPER20DIP-E is an offline switch from the VIPER™ series, manufactured by STMicroelectronics. It implements a flyback topology with an internal high-voltage power MOSFET rated for a breakdown voltage of 620V. The device operates at switching frequencies up to 200kHz and supports output isolation. It provides fault protection mechanisms including current limiting and over-temperature shutdown. The unit is housed in an 8-DIP package (0.300 inch / 7.62mm) designed for through-hole mounting. Electrical specifications include a startup voltage of 11V and a supply voltage range of 8V to 15V.

Feature Summary

• Integrates a high-voltage power MOSFET within a single monolithic IC
• Includes built-in current limiting and thermal shutdown protections
• Supports flyback converter topologies for isolated power conversion

Applications

• Offline AC-DC power supplies
• Flyback converter designs
• General-purpose isolated power conversion

Procurement Notes

Verify component status carefully as this part number is listed as obsolete or discontinued. Confirm availability through authorized distributors or secondary markets. Ensure the specific DIP-8 package variant matches design requirements. Cross-reference datasheets for electrical parameters before integration into new hardware designs.

Selection Notes

Select this component for applications requiring integrated flyback control and power switching in a through-hole package. Consider the 620V breakdown rating and 200kHz frequency limits when designing transformer circuits. Evaluate the 8V to 15V Vcc range against available bias supplies. Verify that the internal MOSFET current handling meets load requirements.

Part Context

This device belongs to the VIPER™ family of high-voltage switched-mode power supply ICs. These components combine a high-voltage startup circuit, oscillator, PWM controller, and power MOSFET into a single package. The VIPER20 variant specifically targets low-power offline applications using the flyback architecture.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.