2.5 A charge current with I²C programmability
The Texas Instruments BQ24163YFFR is a single-cell Li-Ion/Polymer battery charger that delivers a programmable constant charge current up to 2.5 A. The I²C interface lets the host controller set the charge current, battery regulation voltage, and termination threshold on the fly — useful for designs that need to adjust charging profiles for different battery capacities or temperature conditions without a hardware change.
Built-in fault protection simplifies the BOM
Over-temperature and over-voltage protection are integrated, reducing the need for external supervisory circuits. The 10 V maximum supply voltage covers standard USB and 5 V wall-adapter inputs with margin.
Package and assembly considerations
Housed in a 49-DSBGA (2.8x2.8 mm) package — a 0.4 mm pitch BGA that demands a controlled solder-paste stencil and reflow profile. The small footprint is a clear win for space-constrained PCBs, but verify your assembly partner's capability with DSBGA before committing the layout.