The bq78z100 device provides a fully integrated pack-based
solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection,
and authentication for 1-series to 2-series cell Li-Ion and Li-Polymer battery packs.
The bq78z100 gas gauge communicates via an I2C-compatible
interface or single-wire HDQ interface and combines an ultra-low-power, high-speed TI bqBMP
processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of
peripheral and communication ports, an N-channel FET drive, and a SHA-1 Authentication transform
responder into a complete, high-performance battery management solution.
The bq78z100 device provides an array of battery and system safety functions, including
overcurrent in discharge, short circuit in charge, and short circuit in discharge protection for
the battery, as well as FET protection for the N-channel FETs, internal AFE watchdog, and cell
balancing. Through firmware, the devices can provide a larger array of features including
protection against overvoltage, undervoltage, overtemperature, and more.