Active production — single-cell Li-Ion charger with 1.5 A ceiling
The BQ24032ARHLRG4 is a Texas Instruments bqTINY™ III series linear charger IC for single-cell Lithium Ion or Lithium Polymer battery packs, with a programmable constant-current charge up to 1.5 A max. The USB interface allows direct connection to a 5 V bus; the 16 V max supply provides headroom for adapter inputs without external clamp circuitry. Fault protection includes over-temperature, reverse-current, and short-circuit detection — these are integrated, not external add-ons, which simplifies the BOM for a portable or handheld product.
1.5 A charge current and programmable timer — thermal design note
Charge current is constant and programmable via an external resistor; the 1.5 A max sets the upper bound for the thermal budget. The programmable timer terminates charging after a set interval, providing a safety backup if the battery never reaches the 4.2 V full-charge threshold.
Active lifecycle — no obsolescence concern for new designs
For volume BOM planning, the part is sourced per RFQ through our distribution channel; current pricing and lead time are confirmed at quote time.
20-VQFN package — footprint and rework considerations
Surface-mount assembly follows standard QFN reflow profiles.