TOP250F

AC DC Converters, Offline Switchers Overview

The TOP250F is an integrated offline switcher belonging to the TOPSwitch-GX family, manufactured by Power Integrations. It combines a high-voltage power MOSFET with a current-mode controller into a single TO-262-7C package. The device operates at switching frequencies between 66 kHz and 132 kHz using frequency control. It supports flyback topology with internal switching capabilities and provides a breakdown voltage of 700V. The unit features a maximum duty cycle of 66.8% and is designed for universal AC input ranges.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET with a current-mode controller in a single compact package
• Provides comprehensive fault protection including current limiting, overtemperature shutdown, and overvoltage protection
• Utilizes frequency control techniques for stable operation across varying load conditions

AC DC Converters, Offline Switchers Applications

• Offline flyback converter designs
• Universal AC input power supplies
• General-purpose isolated DC-DC conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as specific batches may vary. Check manufacturing date codes against project requirements. Ensure storage conditions meet moisture sensitivity level specifications prior to soldering. Validate package integrity upon receipt to prevent handling damage.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring integrated high-voltage switching with built-in protection mechanisms. Consider the TO-262-7C package for through-hole mounting requirements. Evaluate thermal management needs based on the specified junction temperature range. Ensure the target application aligns with the supported flyback topology and frequency range constraints.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TOPSwitch-GX family, which offers enhanced feature sets for offline power conversion. The series is known for combining power and control functions to reduce system component count. It targets designs needing reliable performance in universal input environments while maintaining compact form factors.

AC DC Converters, Offline Switchers Replacement Considerations

TOP250F is listed as obsolete. Verify availability of alternative TOPSwitch-GX variants or newer generation integrated switches from the same manufacturer that maintain compatible pinouts and electrical characteristics.