PFS725EG

Overview

The PFS725EG is an obsolete high-efficiency power factor correction IC from the HiperPFS series by Power Integrations. It integrates a 600V MOSFET and optimized control circuitry for boost PFC applications. The device operates in continuous conduction mode with a switching frequency range of 24 kHz to 95 kHz. It maintains high light-load efficiency at 10% and 20% load levels. The component supports a minimum operating temperature of -40°C and a maximum of +150°C.

Feature Summary

• Single-chip solution for boost power factor correction
• Integrated 600V MOSFET for high component density
• Optimized for high efficiency across the entire load range

Applications

• Appliances
• Computers & Servers
• Generic PFC circuits

Procurement Notes

This component is officially marked as obsolete and no longer supplied by the manufacturer. Verify current availability through authorized distributors or secondary markets. Ensure compatibility with existing designs before sourcing, as replacement parts may require design adjustments. Confirm RoHS compliance status if required for specific regulatory environments.

Selection Notes

Select this part only for legacy system maintenance or repair where original specifications are mandatory. Consider modern alternatives from the same manufacturer for new designs due to its discontinued status. Evaluate thermal management requirements given the wide operating temperature range. Verify that the integrated 600V rating meets the input voltage requirements of the target application.

Part Context

Part of the HiperPFS series designed for high-performance power factor correction. Combines controller and MOSFET on a single chip to reduce bill of materials and PCB space. Targeted at mid-power applications requiring high efficiency and low component count.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult manufacturer resources for current product line replacements.