FAN4803CS1

Overview

The FAN4803CS1 is a PFC/PWM controller combination integrated circuit manufactured by onsemi. It operates in average current mode with a fixed switching frequency of 67 kHz. The device supports a supply voltage range of 10V to 15V and features a startup current of 200 µA. It is housed in an 8-SOIC package (0.154" width) designed for surface mount installation. The component functions within a temperature range of 0°C to +70°C.

Feature Summary

• Combines power factor correction and PWM control functions in a single IC
• Operates in average current mode for improved performance
• Fixed 67 kHz switching frequency simplifies design

Applications

• Power supplies requiring combined PFC and PWM control
• Average current mode power factor correction circuits

Procurement Notes

Verify the obsolete status of this component before procurement planning, as it is listed as discontinued. Confirm availability through authorized distributors or secondary markets if immediate sourcing is required. Ensure that any replacement strategy accounts for the end-of-life notification timeline provided by the manufacturer.

Selection Notes

Select this component for designs utilizing average current mode PFC with a fixed 67 kHz frequency. The 8-SOIC package suits surface mount applications. Verify that the operating environment stays within the 0°C to +70°C range. Consider the 10V to 15V supply requirement when designing the bias circuitry.

Part Context

This part belongs to the FAN4803 series of power management ICs from onsemi. It is categorized under PMIC - Power Factor Correction products. The device integrates both PFC and PWM controllers to reduce component count in power supply designs.

Replacement Considerations

Check for official obsolescence notices. Evaluate alternative PFC/PWM combo ICs from onsemi or other manufacturers that offer similar average current mode operation and compatible packaging.