FAN4803CS2X_NA3C228

Overview

The FAN4803CS2X_NA3C228 is a Power Factor Correction (PFC) controller integrated circuit manufactured by onsemi. It operates in average current mode with a fixed switching frequency of 67 kHz. The device is designed for power supply applications requiring efficient power factor correction. It functions within a supply voltage range of 10 V to 15 V and supports surface mount installation in an 8-SOIC package. The component has a specified operating temperature range from 0°C to 70°C and features a low start-up current of 200 µA.

Feature Summary

• Implements average current mode control for PFC applications
• Fixed 67 kHz switching frequency operation
• Low start-up current consumption

Applications

• Power factor correction circuits
• AC-DC power supplies
• General purpose power management systems

Procurement Notes

Verify the exact part number suffix, as the base model FAN4803CS2X is listed as obsolete or discontinued in some distributor databases. Confirm availability status directly with the manufacturer or authorized suppliers before procurement planning. Ensure the specific NA3C228 variant matches the required packaging and revision level for your design. Cross-reference datasheets to confirm pinout and electrical specifications remain consistent with legacy documentation.

Selection Notes

Select this component for designs requiring average current mode PFC control at a fixed 67 kHz frequency. It is suitable for applications operating within a 10 V to 15 V supply range and ambient temperatures up to 70°C. Consider the 8-SOIC package constraints for PCB layout. Evaluate if the fixed frequency meets system requirements compared to variable frequency alternatives.

Part Context

This IC belongs to the onsemi FAN4803 family of power factor correction controllers. The FAN4803 series is designed for high-performance AC-DC conversion. The CS2X suffix typically denotes specific packaging or tape-and-reel configurations. This component represents a specialized solution for improving power efficiency in electronic power supplies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs if considering alternative PFC controllers.