Single-cell Li-ion fuel gauge with Impedance Track™
The Texas Instruments BQ27510DRZR-G1 is a single-cell Lithium Ion battery monitor from the Impedance Track™ series. It communicates over an I²C interface and is packaged in a 12-VFDFN Exposed Pad (12-SON 2.5x4 mm). This part is designed for portable devices where accurate state-of-charge reporting is needed from a single Li-ion cell — think handheld instruments, medical monitors, or battery-backed IoT nodes. The Impedance Track™ algorithm learns the cell's impedance over temperature and age, so the reported remaining capacity stays reliable as the battery degrades.
That covers industrial outdoor gear, cold-chain loggers, and automotive cabin-zone applications. The I²C interface runs at standard and fast-mode speeds; pull-up resistors to the host rail are required. The single-cell input range matches a 1-series Li-ion stack — do not connect a 2S pack directly without an external divider or a different gauge part.
Lifecycle and supply posture
It remains a current-design-in part for new single-cell Li-ion gauge applications. Sourced through independent distribution. No stock-holding claim is made here — submit an RFQ for the specific volume and date-code requirement.