Single-cell fuel gauge with I²C digital interface
The BQ27210DRKRG4 is a single-cell battery monitor from TI's bqJUNIOR™ series, designed to report state-of-charge and voltage for Lithium Ion/Polymer packs over an I²C bus. It monitors one cell — the 1-cell count means it handles a single-series Li-Ion string, not 2S or multi-cell stacks.
10-VSON package and board-level integration
Housed in a 10-VFDFN with exposed pad (10-VSON 3x4 mm), the BQ27210DRKRG4 requires a thermal-land pattern on the PCB to sink heat from the die. Surface-mount assembly is standard for volume production; the Tape & Reel packaging feeds directly into pick-and-place lines.
Temperature envelope and deployment context
The commercial temperature grade is consistent with the bqJUNIOR™ positioning as a cost-optimized gauge for battery-powered gear that stays within indoor thermal limits.
Active production — current sourcing posture
Listed as Active with no NRND or EOL flag from Texas Instruments. The BQ27210DRKRG4 is a current-production device, available through authorized and independent distribution channels.