TOP250YN

AC DC Converters, Offline Switchers Overview

The TOP250YN is an offline switch from the TOPSwitch-GX family, integrating a 700 V power MOSFET with high-voltage switching current source, PWM controller, oscillator, and thermal shutdown. It operates in flyback topology at a fixed 132 kHz frequency. The device supports universal AC input (85 V to 265 VAC) and delivers up to 290 W output power at 230 VAC. Key electrical parameters include a maximum duty cycle of 83%, a quiescent supply current of 2.4 mA, and operation within a temperature range of -40 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Multi-mode operation maximizes efficiency across all load conditions
• Integrated fault protection including overvoltage, overcurrent, and thermal shutdown
• Optimized line feed-forward for ripple rejection and jittering for EMI reduction

AC DC Converters, Offline Switchers Applications

• Universal input AC-DC adapters
• Consumer electronics power supplies
• Industrial equipment power systems

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific package variants such as TO-220-7C. Review datasheet revisions for any updates regarding assembly sites or marking changes before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated high-voltage switching without external gate drivers. The fixed 132 kHz frequency reduces transformer size compared to lower-frequency alternatives. Ensure adequate thermal management is planned if operating near the upper limits of the specified power range.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TOPSwitch-GX series by Power Integrations. It represents a monolithic solution combining power and control functions. The series is designed for cost-effective, high-performance offline power conversion applications requiring compact form factors and robust protection features.

AC DC Converters, Offline Switchers Replacement Considerations

TOP261YN is listed as a similar replacement option.