The AAT3672 single-cell Li-ion/polymer battery charger and system management IC uses a three-switch architecture and dual path to enable simultaneous battery charging and system load management. It features an automatic battery charge current reduction loop that automatically compensates for voltage sags and throttles back the charge current when the input source cannot provide the required load current.
The charger IC is compatible with either an ac power adapter or a USB port power source. The device regulates battery charge current and voltage for 4.2-V Li-ion battery cells. The battery charge current can be programmed up to 1.6 A. ($0.95 ea/1,000 — available now.)
Advanced Analogic Technologies , Sunnyvale , CA
Karolien Cools-Wittry 408 737 4600
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