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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CEL SC70JW-8
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Bulk
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：7.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TFSOJ (0.069", 1.75mm Width)
- Supplier Device Package：8-SC70JW
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：-
- Fault Protection：Over Temperature, Over Voltage, Short Circuit
- Charge Current - Max：500mA
- Battery Pack Voltage：4.1V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The AAT3681AIJS-4.1-5-T1 is a single-cell lithium-ion or lithium-polymer battery charger IC manufactured by Skyworks Solutions Inc. It supports charging from USB ports or AC adapters with an input voltage range of 4 V to 7.5 V. The device delivers a regulated charge voltage of 4.1 V and operates within a temperature range of -40°C to +85°C. It features a low quiescent current of 500 µA and dissipates up to 687 mW. The component is housed in an SC70JW-8 surface-mount package.
Feature Summary
- Supports charging via USB port or AC adapter sources
- Regulated output for single-cell lithium-ion and polymer batteries
- Low power consumption during operation
Applications
- Portable electronic devices requiring single-cell battery management
- USB-powered consumer electronics
- AC adapter powered portable equipment
Procurement Notes
Verify the specific suffix (4.1 vs 4.2) as it dictates the fixed output voltage. Confirm package integrity for SC70JW-8. Check RoHS compliance status. Ensure compatibility with existing thermal design given the 687 mW dissipation rating. Validate that the 4.1 V output matches the target battery chemistry requirements.
Selection Notes
Select this part when a fixed 4.1 V charge voltage is required for single-cell applications. Compare against the 4.2 V variant if higher voltage tolerance is needed. Consider the SC70JW-8 footprint constraints. Evaluate the 500 mA input current capability against source limitations. Verify operating temperature range suitability for the intended environment.
Part Context
This component belongs to the Skyworks AAT3681 series of battery chargers. It is designed for compact portable applications where space efficiency is critical. The SC70JW-8 package allows for dense PCB layouts. It integrates necessary protection features for safe lithium-ion and lithium-polymer battery charging operations.
Replacement Considerations
The AAT3681AIJS-4.2-T1 is a similar device but provides a 4.2 V output instead of 4.1 V. Verify if the system can tolerate the voltage difference. Other AAT3681 variants may exist with different current ratings or packages. Consult official substitution guides for pin-compatible alternatives.
