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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 14TDFN
- Series：BatteryManager™
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：6.5V
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：14-WFDFN Exposed Pad
- Supplier Device Package：14-TDFN (3x3)
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：Current, Timer
- Fault Protection：Over Current, Over Temperature, Over Voltage
- Charge Current - Max：1.6A
- Battery Pack Voltage：4.2V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The AAT3672IWO-4.2-3-T1 is a single-cell lithium-ion and lithium-polymer battery charger manufactured by Skyworks Solutions Inc. It operates within a supply voltage range of 4.3 V to 6.5 V and delivers a maximum charge current of 1.6 A with a fixed output voltage of 4.2 V. The device utilizes a USB interface for power input and is housed in a compact 14-WFDFN exposed pad package (3x3 mm). It supports surface mount installation and functions reliably across an operating temperature range of -25°C to +85°C.
Feature Summary
- Ultra-compact integrated charger IC designed for space-constrained portable applications
- Supports both USB port and AC adapter power sources for flexible charging options
- Includes programmable charge current and timer features for customized battery management
Applications
- Portable electronic devices requiring single-cell Li-ion or Li-Po battery charging
- USB-powered consumer electronics and mobile accessories
- Compact handheld gadgets utilizing AC adapter charging solutions
Procurement Notes
This component is officially listed as End-of-Life (EOL) by the manufacturer. Verification of availability through authorized distributors is essential, as stock may be limited or discontinued. Buyers should confirm RoHS compliance status and review official discontinuation notifications before procurement to ensure long-term supply chain stability.
Selection Notes
Select this part for designs requiring a small footprint single-cell charger with USB compatibility. Ensure the input power source aligns with the 4.3 V to 6.5 V operating range. Verify that the 14-WFDFN package dimensions fit the PCB layout constraints and that thermal dissipation requirements are met within the specified temperature range.
Part Context
The AAT3672 series belongs to Skyworks' Battery Manager™ line of power management ICs. This specific model integrates charging logic and power path management into a minimal package size. It is categorized under PMIC-Battery Management components, targeting modern portable electronics where board space is at a premium.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Skyworks Solutions directly for recommended alternatives or cross-reference compatible single-cell chargers from other manufacturers if this EOL part is required.
