What this charger IC does and who specifies it
The BQ24080DRCT is a linear charger IC from Texas Instruments designed for single-cell Lithium Ion/Polymer battery packs. It terminates at 4.2V and delivers a programmable constant charge current up to 1A, set by an external resistor — no digital bus needed. This part targets portable and handheld equipment where board space is tight and the charge path is simple: a wall wart or USB source feeds the input, the IC handles CC/CV regulation, and the 10-VSON (3x3) package with exposed pad keeps the thermal impedance low enough for 1A charging in still air.
Charge current, timer, and thermal envelope
The 1A max charge current is the headline figure, but the real-world charge rate is set by the external resistor on the ISET pin — you pick the current that matches the cell capacity and the thermal budget of the 10-VSON pad. The timer pin adds a safety timeout (hours = R_TMR × C_TMR / constant) that stops charging if the battery never reaches the 4.2V termination. Operating temperature spans -40°C to 85°C, covering outdoor IoT nodes, portable medical gear, and automotive cabin-adjacent equipment.
Active lifecycle — sourcing posture
For volume pricing and lead time, submit an RFQ against your BOM quantity.