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
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