Impedance Track™ fuel gauge for single-cell Li-Ion packs
The BQ27541DRZR-G1 is a single-cell Li-Ion battery fuel gauge from Texas Instruments' Impedance Track™ series. It uses the patented Impedance Track algorithm to report state-of-charge with better than 1% error across temperature and load — no need for a full learning cycle like coulomb-counting gauges. The I²C host interface lets the system MCU read remaining capacity, voltage, current, and temperature without a separate ADC.
Single-cell Li-Ion only — check your pack topology
This part is explicitly rated for 1 cell of Lithium Ion chemistry. It will not work with 2-series packs without external cell-balancing hardware.
Sourced per RFQ against BOM quantity — confirm current lead time and pricing at quote time.
12-SON package with exposed pad
Housed in a 12-VFDFN Exposed Pad package, supplier device package 12-SON (2.5x4 mm). Surface-mount only.