AOZ9210DI

Overview

The AOZ9210DI is a battery protection integrated circuit manufactured by Alpha & Omega Semiconductor Inc. It is designed for single-cell lithium-ion and lithium-polymer battery packs, providing comprehensive protection against over-voltage, under-voltage, over-current, and short-circuit conditions. The device integrates high-side and low-side MOSFETs to control the charging and discharging paths. It features a compact DFN package suitable for space-constrained portable electronics applications.

Feature Summary

• Integrates dual MOSFETs for independent charge and discharge path control
• Provides hardware-based protection against over-voltage, under-voltage, and over-current events
• Supports single-cell lithium-ion and lithium-polymer battery chemistries
• Features low on-resistance switches to minimize power loss during operation

Applications

• Single-cell lithium-ion battery pack protection in mobile phones
• Battery management systems for portable digital cameras
• Protection circuits for handheld gaming devices
• Power banks and portable chargers with single-cell configurations

Procurement Notes

Verify the specific suffix 'DI' indicates the correct package type and tape/reel configuration as per the official datasheet. Confirm RoHS compliance status and check for any recent product change notices or obsolescence alerts from Alpha & Omega Semiconductor before finalizing procurement plans.

Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring integrated switch control. Ensure the application voltage range aligns with the device's operating specifications. Consider the thermal performance of the DFN package relative to the expected current loads in the target design.

Part Context

This part belongs to Alpha & Omega Semiconductor's battery protection IC family. These components are engineered to replace discrete protection solutions by integrating sensing logic and power switches into a single small-footprint package, simplifying PCB layout and reducing overall system cost for consumer electronics manufacturers.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same manufacturer's portfolio that offer updated packaging or enhanced feature sets. Verify electrical parameter compatibility, particularly threshold voltages and current ratings, before substituting with parts from other vendors.