AUR9811DUGD

Overview

The AUR9811DUGD is a single-cell lithium-ion/polymer battery charger IC manufactured by Diodes Incorporated. It operates within an input supply voltage range of 4.6 V to 5.5 V and delivers a maximum output current of 800 mA. The device supports charging voltages of 2.9 V and 4.2 V. It utilizes a 10-WDFN (3x3) package with an exposed pad for thermal management.

Feature Summary

• Integrated power pass device with current sensing capabilities
• Capable of charging from either AC adapter or USB port sources

Applications

• Single-cell lithium-ion battery charging systems
• Lithium-polymer battery charging applications
• USB-powered portable electronic devices

Procurement Notes

Verify the specific suffix 'UGD' against the manufacturer's official datasheet to confirm pinout, thermal characteristics, and packaging details. Ensure compatibility with system input voltage ranges between 4.6 V and 5.5 V. Confirm that the 800 mA output current meets the target battery charging requirements.

Selection Notes

Select this component for designs requiring a compact solution for single-cell Li-Ion or Li-Po batteries. The integrated power pass simplifies external circuitry. Verify that the 10-WDFN footprint fits the PCB layout constraints. Ensure the application environment does not exceed the specified operating limits.

Part Context

This part belongs to Diodes Incorporated's battery management portfolio under the PMIC category. It is designed as a complete charger solution, eliminating the need for external MOSFETs or diodes typically required in basic charging circuits. The device integrates necessary protection features for safe battery operation.

Replacement Considerations

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