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Product Detailed Parameters
- Description：IC LI-ION CHARGER 16TDFN
- Series：BatteryManager™
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：7.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFDFN Exposed Pad
- Supplier Device Package：10-STDFN (2.2x2.2)
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：Current, Timer
- Fault Protection：Over Current, Over Temperature, Over Voltage
- Charge Current - Max：1A
- Battery Pack Voltage：4.2V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The AAT3683IOQ-4.2-2-T1 is a highly integrated single-cell lithium-ion/polymer battery charger manufactured by Skyworks Solutions Inc. It operates from USB ports or AC adapters with an input voltage range of 4.0V to 7.5V. The device precisely regulates charge voltage and current for 4.2V Li-Ion cells, supporting programmable charging currents up to 1A via external resistors. Key internal components include the charging device, reverse blocking diode, and current sensing circuitry.
Feature Summary
- Integrates digital thermal regulation and emergency thermal protection mechanisms
- Supports automatic trickle charge pre-conditioning and recharge sequencing
- Includes battery temperature sensing with open detection capabilities
- Features power-on reset, soft start, and over-voltage/current protection
Applications
- Bluetooth headsets and headphones
- Cellular phones
- Digital still cameras
- Portable music and media players
- Personal data assistants and handheld computers
Procurement Notes
Verify component authenticity through authorized Skyworks distributors. Confirm package integrity upon receipt. Ensure storage conditions meet manufacturer specifications to maintain reliability. Cross-reference datasheet revisions for any design-in updates before finalizing procurement orders.
Selection Notes
Select this component for applications requiring compact single-cell charging solutions. The STDFN-10 package suits space-constrained designs. Verify input source compatibility within the 4.0V to 7.5V range. Ensure external resistor values align with desired current programming limits.
Part Context
This part belongs to the AAT3683 BatteryManager family, designed for portable electronics. It replaces older linear charger designs by integrating additional safety features and thermal management. The Q suffix indicates specific package and tape/reel configuration details defined by the manufacturer.
Replacement Considerations
Check for direct pin-compatible substitutes within the same Skyworks portfolio. Verify that alternative parts support the required 1A current limit and 4.2V output. Ensure thermal performance matches in similar enclosure sizes.
