资 源 简 介
The bq24745 is a high-efficiency, synchronous battery charger with an integrated input-current comparator, offering low component count for space-constrained, mulTI-chemistry battery-charging applicaTIons. The input-current, charge-current, and charge-voltage DACs allow very high regulaTIon accuracies that can be easily programmed by the system power-management microcontroller using the SMBus interface. The bq24745 charges two, three, or four series Li+ cells, and is available in a 28-pin, 5×5 mm2 QFN package.
The bq24745 features Dynamic Power Management (DPM) and input power limiTIng. These features reduce battery-charge current when the input power limit is reached to avoid overloading the AC adaptor when supplying the load and the battery charger simultaneously.
