AAT AAT3681
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.| Part No. | AAT3681 |
|---|---|
| Datasheet | AAT3681 Download |
| Manufacturer |  AAT |
| Description | USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger |
| Buy | Stock & Price |
GENERAL DESCRIPTION
It requires just one external component. 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. AAT3681FEATURES
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● BatteryManager™ USB or AC Adapter System Power Charger — Programmable from 15mA to 300mA 4.0V ~ 6.5V Input Voltage Range High Level of Integration with Internal: — Charging Device — Reverse Blocking Diode Automatic Current Sensing Automatic Recharge Sequencing Full Battery Charge Auto Turn Off/Sleep Mode/Charge Termination Shutdown Current <1µA Automatic Trickle Charge for Battery PreCond...
