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EV-124 AAT3681: USB Port or AC adapter Li-ion/polymer battery charger

Posted: 07 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:AAT3681 application note? Li-ion battery charger? polymer batteries?

The AAT3681 evaluation board demonstrates single-cell Li-ion/polymer battery charging from either a USB or ADP port. AnalogicTech's AAT3681 precisely regulates battery charge voltage and current for 4.2V (4.375V option) Li-ion/polymer battery cells. This device operates at an input voltage range from 4V to 6.5V. The charging current can be set up to 300mA by an external resistor. This document describes the evaluation board and the value for the set resistor.

View the PDF document for more information.

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