Single-cell Dynamic Z-Track™ fuel gauge with protector, current limiter and authentication

The Texas Instruments BQ27Z855 Dynamic Z-Trackgas gauge solution is a fully integrated, accurate

1-series cell gas gauge, protection, current limiter, and authentication

solution.

The BQ27Z855 device

provides a fully integrated pack-based solution with a flash programmable reduced

instruction-set CPU (RISC), safety protection, current limiter, ideal diode

controller, and authentication for 1-series cell Li-ion and Li-polymer battery

packs.

The BQ27Z855 gas

gauge communicates through an I2C compatible interface and combines an

ultra-low power RISC processor, high accuracy analog measurement capabilities,

integrated flash memory, high-side NMOS FET drivers, and ECC ECDSA and SHA-2

authentication to provide a complete, high-performance battery management

solution.