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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 12TDFN
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-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 AAT3697IWP-4.2-T1 is a linear battery charger IC manufactured by Skyworks Solutions Inc., designed for charging single-cell Lithium-ion and Lithium-polymer batteries. It features an integrated charge termination timer to prevent overcharging if the input power source is removed prematurely. The device supports a maximum charge current of 2A and provides a regulated 4.2V output voltage. It operates within an input voltage range of 4.5V to 6.5V and includes thermal regulation to reduce charge current during high junction temperatures. The component is housed in a compact 12-pin TDFN (3x3mm) package.
Feature Summary
- Integrated charge termination timer prevents overcharging upon input power removal
- Thermal regulation automatically reduces charge current to limit junction temperature
- Supports standard CC/CV charging profiles for Li-ion and Li-polymer cells
Applications
- Portable electronic devices requiring single-cell battery management
- Mobile communication equipment with limited board space
- Consumer electronics utilizing USB or wall adapter power sources
Procurement Notes
Verify component authenticity through authorized distributors due to end-of-life status. Confirm package integrity and marking codes (VCXYY) against official datasheets. Check for RoHS compliance documentation. Ensure supply chain stability as availability may be restricted. Validate replacement options if primary sourcing is unavailable.
Selection Notes
Select this component for applications requiring a compact, linear charging solution with built-in safety timers. Suitable for designs where input voltage remains stable between 4.5V and 6.5V. Ideal for space-constrained portable devices needing 2A charge capability without external switching components. Consider thermal performance constraints in enclosed enclosures.
Part Context
This part belongs to Skyworks' AAT369x series of linear battery chargers. It shares functional similarities with other models in the family but is distinguished by its specific 2A current rating and 12-pin TDFN packaging. The series targets portable consumer electronics requiring reliable, low-component-count charging solutions.
Replacement Considerations
Check for direct pin-compatible substitutes within the AAT369x series. Verify equivalent charge current and voltage specifications. Confirm package compatibility before substitution.
