I2C 1cell 2.5A Buck battery charger with dual-input, Power Path and PSEL

The BQ24160, BQ24160A, BQ24161, BQ24161B,

BQ24163, and BQ24168 are highly integrated single-cell Li-ion battery charger and system

power path management devices targeted for space-limited, portable applications with

high-capacity batteries. The single-cell charger has dual inputs which allow operation from

either a USB port or a higher-power input supply (that is, AC adapter or wireless charging

input) for a versatile solution. The two inputs are fully isolated from each other and are

easily selectable using the I2C interface.

The power path management feature allows the

BQ2416xx to power the system from a high-efficiency DC-DC converter while simultaneously and

independently charging the battery. The power path management architecture enables the

system to run with a defective or absent battery pack and enables instant system turnon even

with a totally discharged battery or no battery.