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Multi-chemistry impedance track standalone fuel gauge | battery gas gauge

Availability: 13,301


Package | PIN: TSSOP (PW) | 14
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $3.37
10-24 $3.04
25-99 $2.83
100-249 $2.54
250-499 $2.37
500-749 $2.06
750-999 $1.79
1,000+ $1.75


  • Supports Li-Ion, LiFePO4, PbA, NiMH, and NiCd Chemistries
  • Capacity Estimation Using Patented Impedance Track™ Technology for Batteries from 3 V to 65 V
    • Aging Compensation
    • Self-Discharge Compensation
  • Supports Battery Capacities up to 29 Ah with Standard Configuration Options
  • Supports Charge and Discharge Currents up to 32 A with Standard Configuration Options
  • 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
  • Reduced Power Modes (Typical Battery Pack Operating Range Conditions)
    • Normal Operation: < 145-µA Average
    • Sleep: < 84-µA Average
    • Full Sleep: < 30-µA Average
  • Package: 14-Pin TSSOP

Texas Instruments  BQ34Z100PWR-G1

The bq34z100-G1 device is an Impedance Track™ fuel gauge for Li-Ion, PbA, NiMH, and NiCd batteries, and works independently of battery series-cell configurations. Batteries from 3 V to 65 V can be easily supported through an external voltage translation circuit that is controlled automatically to reduce system power consumption.

The bq34z100-G1 device provides several interface options, including an I2C slave, an HDQ slave, one or four direct LEDs, and an ALERT output pin. Additionally, the bq34z100-G1 provides support for an external port expander for more than four LEDs.