PFS5275F-TL

Overview

The PFS5275F-TL is an advanced power factor correction (PFC) controller IC from the HiperPFS-5 series, manufactured by Power Integrations. It integrates a 750V PowiGaN switch to achieve high efficiency and power density in AC/DC conversion applications. The device supports peak output powers up to 240W for LLC topologies and up to 110W for flyback topologies when paired with compatible primary-side control ICs like InnoSwitch4-CZ. It operates within a wide input voltage range of 90VAC to 305VAC, ensuring robust performance under varying line conditions.

Feature Summary

• Integrates a 750V PowiGaN switch to minimize switching losses and eliminate the need for external current sense resistors.
• Features internal X-capacitor discharge and high-voltage self-biasing startup to reduce component count and system size.
• Employs digital input voltage peak detection and power factor enhancement circuits to maintain performance during voltage distortion.
• Utilizes an InSOP-T28F package with a backside source for efficient PCB heat dissipation without requiring heatsinks.

Applications

• High-power adapters and USB PD 3.1 fast chargers
• Personal computers, printers, and LCD televisions
• Video game consoles
• High-power LED lighting systems
• Industrial controls and home appliances

Procurement Notes

Verify the specific suffix TL indicates tape and reel packaging configuration. Confirm RoHS compliance status through official datasheets or manufacturer declarations. Check for any recent Product Change Notices (PCN) regarding manufacturing site changes or material updates. Ensure compatibility with design software tools like PI Expert for accurate reference design implementation.

Selection Notes

Select this component for designs requiring high power density and efficiency without external heatsinks. It is suitable for LLC topologies up to 240W or flyback configurations up to 110W when combined with appropriate secondary controllers. Consider the InSOP-T28F package constraints for thermal management and PCB layout. Evaluate the need for programmable power limiting features for rapid prototyping across different power levels.

Part Context

The PFS5275F-TL belongs to the HiperPFS-5 family, which utilizes Gallium Nitride (GaN) technology for superior performance compared to traditional silicon-based PFC controllers. This series emphasizes compact form factors and high reliability, targeting modern high-density power supply requirements in consumer electronics and industrial markets.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Power Integrations application notes for potential cross-references within the HiperPFS family based on specific power and voltage requirements.

FAQ

What is the maximum output power supported by the PFS5275F-TL?

The PFS5275F-TL supports peak output powers up to 240W for LLC topologies and up to 110W for flyback topologies when used with compatible primary-side active-clamp ICs.

Does the PFS5275F-TL require an external heatsink?

No, the device is designed to operate without a heatsink in universal input voltage applications due to its efficient thermal management via the InSOP-T28F package backside source.

How does the PFS5275F-TL handle input voltage distortion?

It incorporates digital input voltage peak detection and power factor enhancement circuits to compensate for distortion caused by EMI filters and rectifier bridges, ensuring reliable performance even with UPS or generator power sources.