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AAT3681

AAT
Part Number AAT3681
Manufacturer AAT
Description USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
Published Apr 30, 2007
Detailed Description USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger General Description The AAT3681 BatteryManager is an integrat...
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AAT3681
AAT3681

Overview
USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger General Description The AAT3681 BatteryManager is an integrated single cell lithium-ion/polymer battery charger IC, designed to operate from a DC power source or USB port up to an input voltage of 6.
5V.
It requires just one external component.
The AAT3681 precisely regulates battery charge voltage and current for 4.
2V (4.
375V option) lithiumion/polymer battery cells.
When charged from an AC adapter or USB port, the battery charging current can be set by an external resistor up to 300mA.
Battery charge state is continuously monitored for fault conditions.
In the event of an over-voltage, short-circuit, or over-temperature failure, the device will automatically shut down, thus protecting the charging device, control system, and the battery under charge.
A status monitor output pin is provided to indicate the battery charge status by directly driving an external LED.
AAT3681 Features • • • • • • • • • • • • BatteryManager™ USB...


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