Multi-Chemistry Impedance Track Standalone Fuel Gauge | Battery Gas Gauge - BQ34Z100-G1

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

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Parametrics Compare all products in Battery Fuel Gauge

 
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
Special Features
Operating Temperature Range (C)
Pin/Package
BQ34Z100-G1 BQ27510-G3 BQ27542-G1 BQ34110 BQ78350-R1
2-4 Cells
>4 Cells
Single Cell   
Single Cell    Single Cell    2-4 Cells
>4 Cells
Single Cell   
>4 Cells   
Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH   
Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH   
Li-Ion/Li-Polymer
LiFePO4   
29000    16000    14600    29000    320000   
HDQ
I2C   
I2C    HDQ
I2C   
I2C    I2C
SMBus   
100    300    100    100    100   
LED    None    None    None    LCD
LED
SOC   
Pack
System   
System    Pack    Pack
System   
Pack   
IT (High accuracy)    IT (High accuracy)    IT (High accuracy)    CEDV    CEDV   
N/A    N/A    N/A    N/A    External
Internal   
SHA-1 Authentication    N/A    SHA-1 Authentication
Turbo Mode   
Accumulated Coulomb Count
End of Service
SHA-1 Authentication   
Cell Balancing
Integrated Protector
SHA-1 Authentication   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
14TSSOP    12SON    12SON    14TSSOP    30TSSOP