Charge current and thermal budget in a 3×3 QFN
The BQ24072RGTT is a single-cell Li-Ion linear charger from TI, rated for a programmable charge current up to 1.5 A with a 4.2 V battery termination voltage.
Protection set that covers the common failure modes
Over-temperature, over-voltage, reverse-current, and short-circuit protection are all integrated — no external comparators or watchdog circuits needed. The over-voltage clamp on the input side handles transients from a hot-plugged USB source, and the reverse-current block prevents the battery from discharging back into the input when the supply drops out.
Temperature grade and deployment envelope
The wide range also gives headroom for self-heating at high charge rates in a warm enclosure.
