BQ27Z746 Datasheet Battery Gas Gauge and Protection

Manufacturer: Texas Instruments

BQ27Z746 battery gas gauge and protection by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	BQ27Z746
Manufacturer	Texas Instruments
File Size	1.41 MB
Description	Battery Gas Gauge and Protection
Datasheet	BQ27Z746 Datasheet

General Description

The Texas Instruments BQ27Z746 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge and protection solution.

The BQ27Z746 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, differential battery sensing analog output, and authentication for 1-series cell Li-ion and Lipolymer battery packs.

The BQ27Z746 gas gauge communicates through an I2C compatible interface and combines a

Overview

BQ27Z746 SLUSDW2A – NOVEMBER 2021 – REVISED FEBRUARY 2022 BQ27Z746 Impedance Track™ Technology Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs.

Key Features

Integrated battery gas gauge and protector.
Flash-programmable custom BQBMP RISC CPU.
SHA-256 authentication.
400-kHz I2C bus communications interface.
Low-voltage (2.0 V) operation.
Two independent precision 16-bit ADCs.
Coulomb counting ADC with current sense resistor down to 1 mΩ.
Voltage ADC for cell voltage and external and internal temperature sensors.
Battery fuel gauging based on patented Impedance Track™ t.

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