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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
- Voltage - Supply (Max)：6V
- 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：-
- Fault Protection：Over Current, Over Temperature, Over Voltage
- Charge Current - Max：2A
- Battery Pack Voltage：4.2V
- Interface：-
- Grade：-
- Qualification：-
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Overview
The AAT3620IWO-4.2-T1 is a switch-mode battery charger from Skyworks Solutions, designed for lithium-ion cells with a fixed 4.2 V output voltage. It operates within a supply voltage range of 4.3 V to 6.0 V and supports a maximum charging current of 2000 mA. The device features a TDFN-14 surface-mount package and functions across an industrial temperature range of -25 °C to +85 °C. Key electrical specifications include a quiescent current of 5 mA and a power dissipation rating of 2.5 W.
Feature Summary
- Implements switch-mode topology for efficient lithium-ion battery charging
- Integrates thermal regulation to manage heat during high-current operation
- Supports standard charge termination protocols for single-cell lithium-ion batteries
Applications
- Portable electronic devices requiring compact power management
- Battery-powered consumer electronics utilizing lithium-ion cells
- Industrial equipment operating in moderate temperature environments
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance documentation matches specific manufacturing lots. Validate part markings against official datasheet specifications to prevent counterfeit substitution. Request traceability records for critical applications.
Selection Notes
Select this component when space-constrained designs require high-efficiency switching regulation for single-cell lithium-ion batteries. Ensure input voltage sources remain stable between 4.3 V and 6.0 V. Verify that system thermal design accommodates the specified power dissipation limits under maximum load conditions.
Part Context
This device belongs to the AAT3620 series of battery chargers manufactured by Skyworks Solutions. It serves as a specialized power management integrated circuit (PMIC) within the broader portfolio of solutions for portable electronics. The series focuses on delivering reliable charging profiles in minimal footprint packages.
Replacement Considerations
The product is discontinued. Identify equivalent switch-mode lithium-ion chargers from Skyworks or other manufacturers offering similar TDFN-14 packaging and 2 A current capabilities. Verify pin compatibility and electrical parameter alignment before integration.
