BQ24031IRHLRQ1

The Texas Instruments BQ24031IRHLRQ1 is a standalone, 1-cell, 2A linear battery charger IC designed for space-limited portable applications. It features dual input support for AC adapter or USB power sources with autonomous power source selection. The device offers integrated dynamic power-path management, allowing simultaneous system power and battery charging.

Key electrical specifications include a 16V operating voltage, 1.5A programmable charge current, and support for 4.1V or 4.2V battery pack voltages. It is designed for Lithium Ion/Polymer battery chemistries and includes programmable features for current and timer functions. Fault protection is provided for over temperature, reverse current, and short circuit conditions.

Packaged in a 20-VQFN (3.5x4.5mm) with surface mount capability, this IC is qualified for automotive applications. It operates across a wide temperature range of -40°C to 85°C. The device also includes USB charge control with selectable input current limits and charge status outputs for LED or system interface.

This charger IC is suitable for applications such as smartphones, MP3 players, digital cameras, handheld devices, and internet appliances where efficient and reliable battery charging in a compact form factor is required.