TOP223GN

AC DC Converters, Offline Switchers Overview

The TOP223GN is a three-terminal off-line PWM switch from the second-generation TOPSwitch-II family by Power Integrations. It integrates a high-voltage switching transistor, PWM controller, and protection circuits into a single package. The device supports flyback, forward, boost, or buck topologies with primary or opto feedback. It operates at a switching frequency of 100 kHz and features built-in auto-restart and current limiting. The component offers thermal shutdown for system-level protection and maintains stability in both discontinuous and continuous conduction modes.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage switching transistor, PWM controller, and protection circuits
• Supports multiple converter topologies including flyback, forward, boost, and buck
• Features built-in auto-restart and current limiting mechanisms
• Includes latching thermal shutdown for enhanced system safety

AC DC Converters, Offline Switchers Applications

• Televisions
• Computer monitors
• Audio amplifiers

AC DC Converters, Offline Switchers Procurement Notes

Verify that the ordering suffix corresponds to the required packaging configuration. Confirm the specific pinout and thermal characteristics match the target PCB layout requirements. Ensure compatibility with the intended feedback method, whether primary side regulation or optocoupler-based secondary sensing, before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring cost-effective solutions with low component counts. It is suitable for applications where efficiency targets exceed 90% AC/DC losses. Consider its suitability for universal input voltage ranges and its ability to reduce sensitivity to board layout variations compared to first-generation counterparts.

AC DC Converters, Offline Switchers Part Context

As part of the TOPSwitch-II family, the TOP223GN extends the power range capabilities of previous generations. It provides significant circuit enhancements that simplify design processes. The integration allows for reduced time to market through simplified circuitry and available design tools.

AC DC Converters, Offline Switchers Replacement Considerations

First-generation TOPSwitch devices may serve as functional predecessors but lack the specific enhancements of the TOPSwitch-II family. Cross-reference pinouts and electrical parameters carefully when substituting.