FAN4822IM

Overview

The FAN4822IM is a Power Factor Correction (PFC) controller manufactured by Fairchild Semiconductor, now part of onsemi. It operates in average current mode for continuous boost topology with leading-edge modulation to achieve low total harmonic distortion. The device supports Zero Voltage Switching (ZVS) and functions within a supply voltage range of 12.8V to 14.2V. It has a startup current of 700 µA and a fixed switching frequency of 87 kHz. The component is rated for an operating temperature range from -40°C to +85°C and is housed in a 16-pin SOIC package.

Feature Summary

• Implements average current sensing for continuous boost PFC applications
• Supports Zero Voltage Switching (ZVS) for reduced switching losses
• Utilizes leading-edge modulation to minimize total harmonic distortion

Applications

• Low total harmonic distortion power factor correction circuits
• Continuous boost converter topologies
• Zero Voltage Switching (ZVS) power supply designs

Procurement Notes

Verify the manufacturer status carefully as Fairchild Semiconductor was acquired by onsemi. Confirm that the specific revision matches your design requirements. Check for obsolescence notices or lifecycle changes. Ensure the 16-pin SOIC footprint aligns with your PCB layout. Validate compatibility with your target input voltage and thermal management strategy before finalizing procurement.

Selection Notes

Select this component for designs requiring average current mode control with ZVS capabilities. It is suitable for applications prioritizing low harmonic distortion. Consider the 87 kHz fixed frequency when designing magnetic components. Evaluate the 700 µA startup current against your system's power-up constraints. Ensure the SOIC-16 package fits within the available board space and thermal limits.

Part Context

The FAN4822IM belongs to the family of PFC controllers designed for high-efficiency power conversion. Originally produced by Fairchild Semiconductor, it is now managed under the onsemi portfolio. This controller integrates features necessary for compliant power factor correction in standard AC-DC conversion stages, focusing on performance metrics like THD and switching efficiency.

Replacement Considerations

Check for direct cross-reference part numbers from onsemi or other manufacturers offering equivalent average current mode PFC controllers with ZVS support. Verify pinout compatibility and electrical specifications such as supply voltage range and switching frequency before substitution.