AAT3685AAT3685Lithium-Ion/Polymer Battery Charger General DescriptionThe AAT3685 BatteryManager is a member of AnalogicTech's Total Power Management IC (TPMIC) product family. This device is a highly integrated single cell lithium-ion/polymer battery charger IC designed to operate with USB port or line adapter inputs. It requires the minimum number of external components. The AAT3685 precisely regulates battery charge voltage and current for 4.2V lithium-ion/polymer battery cells. Depending upon input power source, whether it be a USB port or line adapter, the AAT3685 may be programmed for two separate constant current charge levels up to 1A. An optional Charge Reduction Loop is built in to allow users to charge the battery with available current from the charge supply, while keeping the port v……
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