TOP254EG

AC DC Converters, Offline Switchers Overview

The TOP254EG is an AC-DC converter from the TopSwitch-HX family, integrating a 700V power MOSFET, high-voltage switching current source, PWM controller, oscillator, and thermal shutdown circuit. It operates with frequency dithering to reduce EMI and features low standby/empty load power consumption. The device includes output overvoltage protection and line under-voltage lockout.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with high-voltage switching current source and PWM controller on a single monolithic chip.
• Incorporates frequency dithering mechanisms to minimize electromagnetic interference (EMI).
• Features built-in thermal shutdown circuits and fault protection for enhanced reliability.

AC DC Converters, Offline Switchers Applications

• General purpose offline switcher applications
• AC-DC converters with low standby power requirements

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'EG' against official Power Integrations documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperature ranges and pin configurations before procurement. Cross-reference datasheet revisions for any updates to electrical characteristics or mechanical dimensions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated high-voltage MOSFETs and comprehensive protection features in a compact form factor. Consider the TopSwitch-HX family benefits such as low no-load power and reduced EMI when designing offline power supplies. Evaluate thermal management requirements based on the integrated thermal shutdown capabilities.

AC DC Converters, Offline Switchers Part Context

The TOP254EG belongs to the TopSwitch-HX series by Power Integrations, designed for cost-effective and reliable AC-DC conversion. This series combines power switching and control logic into a single package, simplifying design and reducing component count for various offline power supply applications.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution lists for compatible TopSwitch-HX variants. Verify pin-to-pin compatibility and electrical parameter alignment with original design requirements before replacing.