BQ24032ARHLR

The BQ24032ARHLR from Texas Instruments is a single-chip charge and system power-path management IC, part of the bqTINY series. It is designed for single-cell Li-Ion or Li-Polymer based portable applications.

This IC supports dynamic power-path management, allowing the AC adapter or USB port to simultaneously power the system and charge the battery. It features autonomous power source selection between AC adapter and USB, with integrated USB charge control offering selectable 100-mA and 500-mA maximum input current regulation limits. The device supports up to 2-A total current and includes a 3.3-V integrated LDO output.

Key electrical specifications include a maximum charge current of 1.5A, a battery pack voltage of 4.2V, and an input voltage range from 4.35V to 16V, with an absolute maximum of 18V. The operating temperature range is -40°C to 85°C.

The BQ24032ARHLR is housed in a small 3.5-mm x 4.5-mm 20-VQFN package with an exposed pad. It offers features such as battery temperature thermistor monitoring, charge status outputs for LED or system interface, and fault protection including over temperature, reverse current, and short circuit protection. It also provides power good status outputs for AC adapter and USB port presence.