General Description

The AAT3689 BatteryManager is a highly integrated single cell lithium-ion/polymer battery charger IC designed to operate with USB port and AC adapter inputs. It requires a minimum number of external components.

Features

• USB/AC Adapter System Power Charger

— USB: Programmable up to 500mA

— Adapter: Programmable up to 1.0A

• 4.0V to 5.5V Input Voltage Range

• Adapter Presence Automatically Disables USB Charging

• High Level of Integration With Internal:

— Charging Devices

— Reverse Blocking Diodes

— Current Sensing

• Automatic Recharge Sequencing

• Battery Temperature Monitoring

• Full Battery Charge Auto Turn-Off

• Over-Current Protection

• Over-Voltage Protection

• Emergency Thermal Protection

• Power On Reset and Soft Start

• 12-Pin 3x3 TDFN Package

Applications

• Cellular Telephones

• Digital Still Cameras

• Hand-Held PCs

• MP3 Players

• Personal Data Assistants (PDAs)

• Other Lithium-Ion/Polymer Battery-Powered Devices