FAN4810N

Overview

The FAN4810N is a Power Factor Correction (PFC) controller manufactured by onsemi, formerly Fairchild Semiconductor. It implements average current mode control to enhance power efficiency and reduce harmonic distortion in AC-DC conversion systems. The device operates within a supply voltage range of 11V to 16.5V and supports surface mount installation in a 16-SOIC package. Designed for commercial temperature environments ranging from 0°C to 70°C, it features a low startup current of 200 µA to minimize standby power consumption.

Feature Summary

• Implements average current mode control architecture for precise regulation
• Optimized for high-efficiency power factor correction applications
• Features low quiescent current to support energy-saving designs

Applications

• AC-DC power supplies
• Power factor correction circuits
• General-purpose electronic equipment power stages

Procurement Notes

Verify component authenticity through authorized distribution channels due to the part's obsolete status. Confirm that the specific suffix matches the original datasheet requirements. Review the Product Change Notification for manufacturing updates prior to integration into new designs.

Selection Notes

Select this component for legacy system maintenance or repair scenarios requiring exact functional replacement. Evaluate alternative controllers with similar pinouts and control modes if designing new hardware, as availability may be limited.

Part Context

This component belongs to the FAN4810 series of PFC controllers. It was produced by Fairchild Semiconductor before the company became onsemi. The device utilizes a 16-SOIC package and is designed for standard industrial operating temperatures.

Replacement Considerations

LT1248CS#TRPBF by Analog Devices Inc. is a documented substitute.