PFS7326H

Overview

The PFS7326H is a Power Integrations HiperPFS-3 power factor correction controller designed for continuous conduction mode (CCM) boost applications. It integrates the PFC controller, gate driver, and a high-voltage power MOSFET into a single eSIP package. The device operates with an input voltage range of 90 VAC to 265 VAC and supports a maximum output voltage of 385 VDC. It features a switching frequency range of 22 kHz to 123 kHz and includes an internal current limit of 8.8 A. The component is rated for operation within a temperature range of -40 °C to +150 °C.

Feature Summary

• Integrates CCM boost PFC controller, gate driver, and power MOSFET in a low-profile package
• Eliminates external current sense resistors using innovative control techniques
• Features spread spectrum modulation to minimize EMI filtering requirements
• Includes comprehensive protection mechanisms such as UV, OV, thermal shutdown, and SOA protection

Applications

• Power supplies for desktop computers and monitors
• Telecommunications equipment power systems
• Office automation devices
• LED lighting drivers requiring high power factor

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and electrical ratings. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure the ordering quantity matches standard tube packaging constraints defined by the manufacturer. Validate that the selected variant meets the required thermal management specifications for the target enclosure.

Selection Notes

Select this component for designs requiring integrated PFC and MOSFET functionality to reduce bill of materials count. The wide switching frequency range allows optimization for efficiency or EMI performance. Verify that the 8.8 A current limit aligns with the peak inductor current requirements of the application. Consider the eSIP package dimensions when designing the PCB footprint and thermal dissipation strategy.

Part Context

The PFS7326H belongs to the HiperPFS-3 family from Power Integrations. This series combines power factor correction with high-efficiency switching in a compact form factor. The family targets medium-power applications where size reduction and component count minimization are critical design priorities.

Replacement Considerations

Cross-reference with other HiperPFS-3 variants such as PFS7327H for different current limits. Verify pin-to-pin compatibility before substituting. Check if alternative packages like eSIP-16G are suitable for the mechanical constraints.