AAT3685IWP-4.2-T1

Overview

The AAT3685IWP-4.2-T1 is a single-cell Li-Ion/Polymer battery charger manufactured by Skyworks Solutions Inc. It operates within a supply voltage range of 4 V to 7.5 V and delivers a regulated output voltage of 4.2 V. The device supports a maximum charge current of 1.6 A and features a low quiescent current of 500 uA. It is housed in an SC70JW-8 surface-mount package with an operating temperature range from -40 C to +85 C.

Feature Summary

• Integrated circuit designed for charging single-cell lithium-ion or lithium-polymer batteries
• Supports USB port and AC adapter power sources
• Operates with low quiescent current consumption

Applications

• USB-powered portable electronic devices
• AC adapter powered consumer electronics
• Single-cell lithium-ion battery management systems
• Lithium-polymer battery charging applications

Procurement Notes

Verify component authenticity through authorized distributors due to End-of-Life status. Confirm package integrity and marking codes (RNXYY) against official datasheets. Check RoHS compliance documentation prior to integration. Validate replacement availability as this specific part number may be discontinued.

Selection Notes

Select this component for applications requiring compact single-cell charging solutions. The SC70JW-8 package suits space-constrained designs. Ensure input voltage aligns with the 4 V to 7.5 V operational range. Consider thermal dissipation requirements given the 687 mW power dissipation rating in the specified package.

Part Context

This part belongs to the Skyworks BatteryManager series, categorized under PMIC - Power Management ICs. It functions specifically as a charge management device for lithium-based chemistries. The manufacturer identifies it as a dedicated solution for portable device power regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.