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A4051

AiT Semiconductor
Part Number A4051
Manufacturer AiT Semiconductor
Description 1A LINEAR LI-ION BATTERY CHARGER
Published Jun 2, 2015
Detailed Description AiT Semiconductor Inc. www.ait-ic.com A4051 BATTERY MANAGEMENT 1A LINEAR LI-ION BATTERY CHARGER DESCRIPTION FEATURES ...
Datasheet PDF File A4051 PDF File

A4051
A4051

Overview
AiT Semiconductor Inc.
www.
ait-ic.
com A4051 BATTERY MANAGEMENT 1A LINEAR LI-ION BATTERY CHARGER DESCRIPTION FEATURES The A4051 is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries.
Its PSOP package and low external component count make the A4051 ideally suited for portable applications.
Furthermore, the A4051 is specifically designed to work within USB power specifications.
No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture.
Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature.
The charge voltage is fixed at 4.
2V, and the charge current can be programmed externally with a single resistor.
The A4051 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached.
When the input supply (wall adapter or USB supply) is re...


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