Features

• USB or AC Adapter System Power Charger

▪ Programmable from 15mA to 500mA

• 4.0V ~ 7.5V Input Voltage Range

• High Level of Integration with Internal:

▪ Charging Device

▪ Reverse Blocking Diode

Constant Regulated Output Voltage:

▪ 4.1 in AAT3681A-5

▪ 4.2 in AAT3681A-1/-2/-4

• Automatic Current Sensing

• Automatic Recharge Sequencing

• Full Battery Charge Auto Turn Off/Sleep Mode/Charge

Termination

• Shutdown Current <1μA

• Automatic Trickle Charge for Battery Pre-Conditioning

(AAT3681A-1/AAT3681A-4 is No Trickle Charge

Option)

• Over-Voltage and Emergency Thermal Protection

• Power On Reset and Soft Start

• LED Status Pin

• 8-Pin 2.0 × 2.0mm SC70JW Package