Fully-Integrated Battery Charger IC

Advanced Analogic Technologies Inc.’s has released AAT3687 BatteryManager™ a highly integrated single-cell lithium-ion/polymer battery charger IC. By bringing together a charging device, reverse blocking diode, and current sensing circuit in a small 3x3mm TDFN package, the AAT3687 reduces component count in a wide range of portable, battery-powered consumer applications. The AAT3687 also features an active thermal management system which regulates fast charge while maintaining a constant current for all ambient temperatures and input vs. output voltage conditions.

The new battery charger supports charging currents up to 1.5A across an input voltage range of 4.0 to 5.5V. An innovative active thermal loop charge reduction circuit reduces charging time by allowing the charger to operate at whatever rate is accessible up to 1.5A.

Samples of the AAT3687 are available immediately. The new device comes in a Pb-free, thermally-enhanced, 12-pin TDFN 3x3 mm package and is rated over the -40 to +85 degree C range. The AAT3687 sells for $1.64 in 1,000-piece quantities.

For more information, visit www.analogictech.com