The BQ24190RGET is a single-cell Li-Ion/Polymer charger from Texas Instruments, rated for a maximum charge current of 4.5 A and a maximum supply voltage of 17 V. The I²C interface lets the system host adjust charge current, termination threshold, and timer on the fly — useful for thermal throttling in a sealed enclosure or for supporting different battery capacities across a product family. Integrated fault protection covers over-current, over-temperature, and over-voltage conditions, which simplifies the safety compliance path for portable devices without adding external supervisory ICs.
4.5 A charge current in a 4x4 mm QFN — thermal layout matters
Without that thermal relief, the junction temperature will climb above the 85°C ambient limit during fast charge.
Available in both Tape & Reel and Cut Tape options for the 24-VQFN package.