BQ34Z100-G1 Multi-chemistry impedance track standalone fuel gauge | battery gas gauge | TI.com

BQ34Z100-G1 (ACTIVE) Multi-chemistry impedance track standalone fuel gauge | battery gas gauge

 

Description

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.

Features

  • 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

Parametrics

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Part number Order Number of series cells Cell chemistry Battery capacity (Max) (mAh) Communication interface Battery capacity (Min) (mAh) External capacity indication Implementation Gas gauge algorithm Cell balancing Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ34Z100-G1 Order now 2-4 Cells
>4 Cells
Single Cell    
Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH    
29000     HDQ
I2C    
100     LED     Pack
System    
Impedance Track         SHA-1 Authentication     -40 to 85     TSSOP | 14     14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)    
BQ34110 Order now 2-4 Cells
>4 Cells
Single Cell    
Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH    
29000     I2C     100     None     Pack
System    
CEDV         Accumulated Coulomb Count
End of Service
SHA-1 Authentication    
-40 to 85     TSSOP | 14     14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)