The BQ34Z100PW is a Fuel Gauge IC, works independently of battery series-cell configurations and supports a wide range of Li-Ion and LiFePO4 battery chemistries. Batteries from 3 to 65V can be supported through an external voltage translation circuit that can be controlled automatically to reduce system power consumption. The device provides several interface options, including an I²C slave, an HDQ slave, one or four direct LEDs and an Alert output pin. Additionally, the BQ34Z100PW provides support for an external port expander for more than four LEDs.
Supports Li-ion and LiFePO4 Chemistries
Capacity estimation using patented Impedance track technology for Batteries from 3 to 65V
Supports Battery Capacities above 65Ah
Supports Charge and Discharge Currents above 32A
External NTC Thermistor Support
Supports Two-Wire I²C and HDQ Single-wire Communication
Interfaces with Host System
SHA-1/HMAC Authentication
One- or Four-LED Direct Display Control
Five-LED and Higher Display Through Port Expander
<140µA Average normal operation, <64µA Average sleep, <19µA Average full sleep reduced power modes
