Texas Instruments bq34Z100-R2 Stand-Alone Fuel Gauge is an Impedance Track™ fuel gauge for Li-ion, PbA, NiMH, and NiCd batteries and works independently of battery series-cell configurations. Batteries from 3V to 16.7KV can be easily supported through an external voltage translation circuit controlled automatically to reduce system power consumption. The bq34Z100-R2 device provides several interface options, including an I2C peripheral, an HDQ peripheral, one or four direct LEDs, and an ALERT output pin. The Texas Instruments bq34Z100-R2 supports an external port expander for more than four LEDs.
