AOZ7111AI

Overview

The AOZ7111AI is a Critical Conduction Mode (CRM) Power Factor Correction controller manufactured by Alpha & Omega Semiconductor. It operates with a fixed switching frequency of 350kHz and utilizes an 8-SOIC package. The device integrates high-voltage startup circuitry and supports input voltages between 10.5V and 18VDC. Designed for boost topology applications, it provides efficient power factor correction for AC-DC conversion systems.

Feature Summary

• Supports Critical Conduction Mode (CRM) operation for optimized efficiency
• Integrates high-voltage startup circuitry to reduce external component count
• Fixed 350kHz switching frequency simplifies magnetics design

Applications

• AC-DC power supplies
• LED lighting drivers
• Adapters and chargers

Procurement Notes

Verify the specific suffix 'AI' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the source document explicitly lists this part number as active or obsolete before procurement planning. Cross-reference the 8-SOIC package dimensions with your PCB footprint requirements.

Selection Notes

Select this component for applications requiring CRM PFC control with a fixed 350kHz frequency. It is suitable for designs needing integrated high-voltage startup to minimize bill of materials. Verify that the operating voltage range of 10.5V to 18VDC aligns with your system's supply constraints.

Part Context

Alpha & Omega Semiconductor specializes in power management solutions, including MOSFETs and ICs. The AOZ7111AI belongs to their portfolio of power factor correction controllers designed for consumer electronics and computing applications. This series focuses on improving energy efficiency through advanced control modes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide for verified alternatives.