TOP204YAI

AC DC Converters, Offline Switchers Overview

The TOP204YAI is a high-voltage power switch from the TOPSwitch-II family, integrating a 700 V MOSFET with a current-mode controller. It operates at selectable frequencies of 132 kHz or 66 kHz and includes programmable line regulation. Key integrated features include soft-start, under-voltage lockout, cycle-by-cycle current limiting, over-temperature protection, and an on/off control pin for remote shutdown.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with a high-voltage current-mode controller in a single package
• Provides programmable line regulation and adjustable current limit via external components
• Includes comprehensive protection mechanisms such as thermal shutdown and under-voltage lockout

AC DC Converters, Offline Switchers Applications

• LCD monitors
• Personal computer standby power supplies
• Set-top boxes
• DVD players and recorders
• Digital televisions

AC DC Converters, Offline Switchers Procurement Notes

Verify the suffix 'AI' corresponds to the specific tape-and-reel packaging variant rather than tube packaging. Confirm the device meets RoHS compliance requirements for your region. Ensure the ordering part number matches the exact frequency selection and package type required by your schematic design.

AC DC Converters, Offline Switchers Selection Notes

Select this component for isolated flyback converters requiring up to approximately 30 W output power. The TOP204YAI is suitable for designs needing fixed frequency operation without jitter. Consider alternative models if digital control interfaces or higher power densities are required for the application.

AC DC Converters, Offline Switchers Part Context

This device belongs to the TOPSwitch-II family, which was designed to simplify offline power supply design. It combines the power MOSFET and controller into one monolithic IC, reducing component count and board space compared to discrete solutions. This family is widely used in consumer electronics due to its reliability and ease of implementation.

AC DC Converters, Offline Switchers Replacement Considerations

Direct replacements within the same family include TOP204YN or TOP204YA. Verify that any substitute maintains the same 700 V rating and TO-220-5C package dimensions to ensure mechanical compatibility.