AnalogicTech Announces Highest Power Density 2A Battery Charger
Advanced Analogic Technologies Incorporated has announced today the AAT3697, an extremely high power density linear battery charger for Lithium-ion/polymer batteries. Coming in a small, 12-pin, 3mm x 3mm TDFN package, the latest addition to AnalogicTech's rapidly expanding battery charger product line offers up to 2A of charge current while occupying only 9 mm2 of PCB area.
Compact 3×3-mm Device Reduces PCB Space, Solution Cost 
The AAT3697 integrates an internal charging device, reverse blocking and current sensing circuits. An intelligent digital thermal loop control system continuously measures internal circuit temperature and automatically reduces the fast charge current when the device exceeds a preset die temperature threshold. By constantly evaluating the die temperature and adjusting the fast charge current only to the extent necessary, this closed-loop thermal management system maximizes charge current and minimizes charge time, even under harsh high temperature operating conditions.
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