Multi-chemistry charger for 3–4 series cells
The BQ24721RHBRG4 is a multi-chemistry battery charger IC from Texas Instruments designed for 3 to 4 series cells, supporting a maximum battery pack voltage of 19.2V. It communicates over an I²C interface, allowing the system to program charge current dynamically.
The BQ24721RHBRG4 is listed as obsolete by Texas Instruments. No official successor or pin-compatible replacement is recorded on this line.
I²C programmability and package details
The charger IC is programmable via I²C for charge current, and it accepts a supply voltage up to 24V. It is housed in a 32-VFQFN Exposed Pad package (5x5 mm, supplier device package 32-VQFN), surface-mount, supplied in Tape & Reel.
