PFS7634H

Overview

The PFS7634H is a power factor correction controller from the HiperPFS-3 series, designed for continuous conduction mode (CCM) boost PFC applications. It operates with a switching frequency of 123 kHz and supports a maximum supply voltage of 15 V. The device is housed in a 16-pin eSIP-16D package and functions within an operating temperature range of -40 °C to 150 °C. It features zero power detection capability and includes comprehensive protection mechanisms such as output overvoltage, overtemperature, and input undervoltage.

Feature Summary

• Delivers high efficiency exceeding 95% across a load range from 10% to 100%
• Achieves ultra-low no-load consumption of less than 60 mW at 230 VAC
• Integrates multiple protection functions including output overvoltage, overtemperature, and short circuit

Applications

• Continuous Conduction Mode (CCM) Power Factor Correction circuits
• High-efficiency AC/DC power supply designs
• Consumer electronics requiring low standby power consumption

Procurement Notes

Verify the specific datasheet version and ordering suffixes directly with Power Integrations or authorized distributors. Confirm that the eSIP-16D package dimensions and pinout match your PCB layout requirements. Ensure compliance with RoHS standards and check for any regional regulatory certifications required for your target market before finalizing procurement.

Selection Notes

Select this component for designs prioritizing high efficiency and low standby power in CCM PFC topologies. The integrated protections simplify design complexity by reducing external component count. Consider the 123 kHz switching frequency when designing magnetic components and thermal management solutions to ensure optimal performance within the specified temperature range.

Part Context

The PFS7634H belongs to the HiperPFS-3 family, which integrates power factor correction and primary-side regulation capabilities. This series targets high-performance power supplies where size, efficiency, and cost are critical. The device combines advanced control algorithms with robust protection features to meet stringent energy efficiency regulations globally.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure replacement parts maintain compatible package types, pin configurations, and electrical specifications such as switching frequency and supply voltage limits.