2A single-cell charger with I²C and USB control
The BQ24257YFFR is a single-cell battery charger from Texas Instruments, controlled via I²C and USB interface, delivering a programmable constant charge current up to 2A. The battery pack voltage ceiling is 4.44V, covering standard 4.2V and 4.35V Li-ion cells. Fault protection includes over-temperature and over-voltage shutdown.
NRND — plan the last-time-buy window
Buyers should confirm the last-time-buy schedule and evaluate a migration path before the part enters full obsolescence.
30-DSBGA package and operating range
The device comes in a 30-DSBGA package, a 0.4 mm pitch wafer-level chip-scale package that requires careful PCB layout for thermal and solder-joint reliability. The mounting type is surface mount, supplied on Tape & Reel.
