TOP223YN

AC DC Converters, Offline Switchers Overview

The TOP223YN is a monolithic high-voltage switcher from the TOPSwitch-II family, integrating a power MOSFET and PWM controller into a single TO-220-3 package. It operates with an input voltage range of 85 VAC to 265 VAC and delivers up to 30 W of output power. The device features a fixed switching frequency of 100 kHz and supports a maximum duty cycle of 67%. It includes internal high-voltage startup circuitry, current limiting, thermal shutdown, and overvoltage protection.

AC DC Converters, Offline Switchers Feature Summary

• Integrates power MOSFET and PWM controller for minimal external component count
• Includes built-in high-voltage startup circuit eliminating start-up resistors
• Provides comprehensive fault protection including thermal shutdown and cycle-by-cycle current limiting

AC DC Converters, Offline Switchers Applications

• Universal input AC-DC converters
• Battery chargers
• Standby power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'YN' corresponds to the lead-free TO-220-3 package variant. Confirm RoHS compliance status as some older revisions may differ. Ensure the sourcing channel provides valid traceability documentation for this discontinued or legacy component series.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive designs requiring integrated control and power switching. It is suitable for applications where board space is limited and low external part count is prioritized. Verify that the 30 W power capability meets the specific load requirements without exceeding thermal limits.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TOPSwitch-II family, which offers enhanced performance over the first-generation TOPSwitch devices. It extends the power range for universal input applications while maintaining the simplicity of a three-terminal IC solution. The family is designed to reduce sensitivity to board layout variations.

AC DC Converters, Offline Switchers Replacement Considerations

TOP223Y is a direct pin-compatible alternative within the same family.