Single-cell fuel gauge with Impedance Track
The Texas Instruments BQ27750DRZR is a single-cell battery protection IC and fuel gauge built around the Impedance Track™ algorithm, designed for Lithium Ion and Lithium Polymer packs. It monitors voltage, current, and temperature to report state-of-charge and provides fault protection for overcurrent, overtemperature, overvoltage, and short-circuit conditions. Communication with a host microcontroller runs over an I²C interface.
Package and temperature grade
Housed in a 12-VFDFN exposed-pad package (supplier device package 12-SON, 2.5x4 mm), this part is surface-mount and requires a thermal pad on the PCB for heat sinking.
Lifecycle status — obsolete
The BQ27750DRZR is listed as obsolete by Texas Instruments. Buyers should confirm availability and current pricing at quote time.
