AAT3693IDH-AA-T1

Overview

The AAT3693IDH-AA-T1 is a single-cell lithium-ion/polymer battery charger IC manufactured by Skyworks Solutions Inc. It features constant current and constant voltage charging profiles with programmable charge current. The device operates within an input voltage range of 4.2 V to 6 V, delivering a regulated output voltage of 4.2 V. It supports a maximum charge current of 1 A and includes thermal regulation to manage power dissipation up to 2 W. The component functions across a temperature range of -40 °C to +85 °C and is housed in a WFDFN-10 surface-mount package.

Feature Summary

• Supports constant current and constant voltage charging for single-cell lithium-ion and polymer batteries
• Features programmable charge current capability
• Includes thermal regulation functionality

Applications

• Portable electronic devices requiring single-cell battery management
• Lithium-ion battery charging systems
• Lithium-polymer battery charging applications

Procurement Notes

Verify the specific suffix AA against official Skyworks documentation to confirm pinout and electrical characteristics, as suffixes often denote package or variant differences. Confirm end-of-life status through manufacturer notifications, as discontinuation affects long-term supply chain stability. Ensure compatibility with system input voltage ranges and thermal requirements before integration.

Selection Notes

Select this component for applications requiring a compact solution for single-cell Li-ion or Li-polymer batteries. Evaluate the WFDFN-10 package size against board space constraints. Consider the programmable current feature for optimizing charge time versus thermal performance. Verify that the 4.2 V output matches the target battery cell chemistry specifications.

Part Context

This part belongs to the Skyworks AAT3693 series of battery chargers. It is designed for portable applications where space efficiency and reliable charging profiles are critical. The device integrates necessary control logic for safe lithium-based battery charging within a small footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Skyworks Solutions documentation for direct replacements or cross-reference guides.