PFS708EG

Overview

The PFS708EG is a high-performance power factor correction (PFC) controller from the HiperPFS family, manufactured by Power Integrations. It integrates a continuous conduction mode (CCM) boost PFC controller, gate driver, and a high-voltage power MOSFET into a single low-profile eSIP™ power package. The device operates with an input voltage range of 90 VAC to 265 VAC and delivers up to 1 kW of peak output power. Designed for universal AC inputs, it achieves greater than 95% efficiency across the load range from 10% to full load.

Feature Summary

• Integrates CCM boost PFC controller, gate driver, and high-voltage power MOSFET in a single low-profile eSIP package
• Eliminates external current sense resistors to reduce component count and associated power losses
• Adjusts switching frequency dynamically based on output load, input line voltage, and input line cycle
• Provides wide-bandwidth spread spectrum effect to significantly minimize EMI filtering requirements

Applications

• PC power supplies
• High-power LED lighting systems
• LCD TV power adapters
• Industrial equipment power supplies
• Video game consoles

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and thermal characteristics. Ensure the selected package variant matches the required PCB footprint and mounting style. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the manufacturer's latest documentation for any design updates or recommended operating conditions.

Selection Notes

Select this component for designs requiring near-unity power factor without external sensing resistors. It is suitable for applications demanding high efficiency at light loads due to its dynamic frequency adjustment. Consider the integrated protection features, including soft-start and thermal shutdown, when designing for reliability. Evaluate the EMI reduction benefits to potentially lower filter costs in the system architecture.

Part Context

The PFS708EG belongs to the HiperPFS series, which combines power factor correction and control functions in a compact form factor. This integration simplifies the design of high-density power converters by reducing the number of discrete components required. The series is engineered to meet stringent energy efficiency standards and regulatory requirements for electronic equipment globally.

Replacement Considerations

Consult official substitution guides for compatible devices within the HiperPFS family. Verify electrical parameters and pin configurations before replacing existing components.