1.5 A charge current for a single Li-Ion cell
The BQ24075TRGTT is a linear battery charger IC from Texas Instruments designed to charge a single-cell Li-Ion pack. Its maximum charge current of 1.5 A is the headline rating — that sets how fast the battery fills. For a typical 2000 mAh cell, that's roughly a 1.3-hour charge from empty, assuming the input supply can deliver the current. The charge current is constant and programmable, so you can dial it down with a single resistor to match the battery capacity or thermal budget. The USB interface means the charger can draw power directly from a USB port without extra negotiation logic.
Protection set and thermal range
Fault protection includes over-temperature, over-voltage, reverse current, and short-circuit. That's the full set for a consumer or industrial charger — the IC shuts down before the battery sees a fault condition.