FSFR1800XC

AC DC Converters, Offline Switchers Overview

The FSFR1800XC is an integrated power switch (FPS) designed for half-bridge resonant AC/DC converter applications, supporting up to 260W output power. It combines high-voltage power MOSFETs with fast-recovery body diodes and a high-side gate-drive circuit. The device features an accurate current-controlled oscillator for precise frequency regulation. This integration simplifies design by reducing component count and improving reliability in offline power supply systems.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFETs with fast-recovery type body diodes
• Includes a dedicated high-side gate-drive circuit
• Features an accurate current-controlled oscillator for stable operation

AC DC Converters, Offline Switchers Applications

• Half-bridge resonant AC/DC converters
• Offline power supply designs
• Power management applications requiring integrated switching solutions

AC DC Converters, Offline Switchers Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm availability through authorized distributors or secondary markets as active production may have ceased. Ensure compatibility with existing bill of materials and validate replacement options if necessary for long-term supply chain stability.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a compact, integrated solution for half-bridge resonant topologies. Consider its built-in protection features and simplified external component requirements. Evaluate thermal performance and packaging constraints relative to the target application's power density needs.

AC DC Converters, Offline Switchers Part Context

This part belongs to onsemi's FPS series, which integrates power switches with control circuits to simplify AC/DC conversion designs. The series targets efficient, high-power-density offline power supplies, leveraging advanced semiconductor technology to reduce system complexity and improve overall efficiency in consumer and industrial electronics.

AC DC Converters, Offline Switchers Replacement Considerations

Check for equivalent models from onsemi or other manufacturers offering similar integrated power switch capabilities. Verify pinout compatibility and electrical specifications such as voltage ratings and current handling capabilities before substitution.