Product details

Cell chemistry Lead Acid, Li-Ion/Li-Polymer, LiFePO4, NiCd, NiMH Number of series cells 2-4 Cells, >4 Cells, Single Cell Communication interface I2C Battery capacity (Min) (mAh) 100 Battery capacity (Max) (mAh) 29000 Implementation Pack, System External capacity indication None Features Accumulated Coulomb Count, CEDV algorithm, End of Service, SHA-1 Authentication Operating temperature range (C) -40 to 85 Cell balancing
Cell chemistry Lead Acid, Li-Ion/Li-Polymer, LiFePO4, NiCd, NiMH Number of series cells 2-4 Cells, >4 Cells, Single Cell Communication interface I2C Battery capacity (Min) (mAh) 100 Battery capacity (Max) (mAh) 29000 Implementation Pack, System External capacity indication None Features Accumulated Coulomb Count, CEDV algorithm, End of Service, SHA-1 Authentication Operating temperature range (C) -40 to 85 Cell balancing
TSSOP (PW) 14 32 mm² 5 x 6.4
  • Accurate End-Of-Service (EOS) Determination for Batteries in Rarely Discharged Applications
  • Compensated End-of-Discharge Voltage (CEDV) Gas Gauge for Single- and Multi-Cell Batteries, Providing
    • State-Of-Charge (SOC)
    • Time-To-Empty (TTE)
    • State-Of-Health (SOH)
    • Watt-Hour–Based Charge Termination
  • Supports Voltages up to 65 V, Capacities up to 32 Ah, and Currents up to 32 A—with Options to Extend Beyond These Levels Using Scaling
  • Supports Li-Ion, LiFePO4, Lead-Acid (PbA), NiMH, and NiCd Chemistries
  • Dual Configurable Host Interrupt or GPO
  • Lifetime Data Logging Options
  • Precision Coulomb Counter, Voltage, and Temperature Measurement
  • Power Enable Control
  • I2C™ Communication with Host
  • Accumulated Charge Coulomb Counting with Configurable Interrupt
  • SHA-1 Authentication
  • Accurate End-Of-Service (EOS) Determination for Batteries in Rarely Discharged Applications
  • Compensated End-of-Discharge Voltage (CEDV) Gas Gauge for Single- and Multi-Cell Batteries, Providing
    • State-Of-Charge (SOC)
    • Time-To-Empty (TTE)
    • State-Of-Health (SOH)
    • Watt-Hour–Based Charge Termination
  • Supports Voltages up to 65 V, Capacities up to 32 Ah, and Currents up to 32 A—with Options to Extend Beyond These Levels Using Scaling
  • Supports Li-Ion, LiFePO4, Lead-Acid (PbA), NiMH, and NiCd Chemistries
  • Dual Configurable Host Interrupt or GPO
  • Lifetime Data Logging Options
  • Precision Coulomb Counter, Voltage, and Temperature Measurement
  • Power Enable Control
  • I2C™ Communication with Host
  • Accumulated Charge Coulomb Counting with Configurable Interrupt
  • SHA-1 Authentication

The bq34110 CEDV Battery Gas Gauge provides CEDV gas gauging and End-Of-Service (EOS) Determination for single- and multi-cell batteries. The device includes enhanced features to support applications where the battery is kept fully charged and is rarely discharged, such as found in a wide variety of backup systems. The bq34110 gas gauge supports multiple battery chemistries, including Li-Ion and LiFePO4, lead acid (PbA), Nickel Metal Hydride (NiMH), and Nickel Cadmium (NiCd).

The gas gauging function uses voltage, current, and temperature data with Compensated End-of-Discharge Voltage (CEDV) technology to provide State-Of-Charge (SOC) and State-Of-Health (SOH) data. The gas gauge also incorporates an End-Of-Service (EOS) Determination function that alerts when battery capability has degraded and is approaching the conclusion of its usable service.

The data available from the gauge can be read by the host through a 400-kHz I2C bus. Two ALERT outputs are also available to interrupt the host or can be used for other functions, based on a variety of configurable options.

The bq34110 CEDV Battery Gas Gauge provides CEDV gas gauging and End-Of-Service (EOS) Determination for single- and multi-cell batteries. The device includes enhanced features to support applications where the battery is kept fully charged and is rarely discharged, such as found in a wide variety of backup systems. The bq34110 gas gauge supports multiple battery chemistries, including Li-Ion and LiFePO4, lead acid (PbA), Nickel Metal Hydride (NiMH), and Nickel Cadmium (NiCd).

The gas gauging function uses voltage, current, and temperature data with Compensated End-of-Discharge Voltage (CEDV) technology to provide State-Of-Charge (SOC) and State-Of-Health (SOH) data. The gas gauge also incorporates an End-Of-Service (EOS) Determination function that alerts when battery capability has degraded and is approaching the conclusion of its usable service.

The data available from the gauge can be read by the host through a 400-kHz I2C bus. Two ALERT outputs are also available to interrupt the host or can be used for other functions, based on a variety of configurable options.

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Technical documentation

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Type Title Date
* Data sheet bq34110 Multi-Chemistry CEDV Battery Gas Gauge for Rarely Discharged Applications datasheet (Rev. B) PDF | HTML 10 Nov 2016
* User guide bq34110 Technical Reference Manual (Rev. A) 09 Aug 2018
User guide bq34110 Out-of-Box Quick Start Guide 21 Aug 2018
EVM User's guide bq34110EVM-796 Evaluation Module (Rev. A) 26 Jul 2018
User guide Simple Guide to CEDV Data Collection for Gauging Parameter Calculator (GPC) (Rev. B) 30 Jan 2018
Application note Gauge Communication 12 Jan 2017
Technical article How do you detect battery aging in rarely discharged applications? 10 Jan 2017
Technical article How to choose a multicell gauge 16 Dec 2016
Application note Using I2C Communications With the bq34110 bq35100 and bq34z100-G1 Series of Gas PDF | HTML 09 Nov 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ34110EVM-796 — bq34110 Multi-Chemistry CEDV Battery Gas Gauge for Rarely Discharged Applications Evaluation Module

This evaluation module (bq34110EVM-796) is a complete evaluation system for the bq34110 wide range gas gauge that supports multiple battery chemistries, including Li-Ion and LiFePO4, lead acid (PbA), Nickel Metal Hydride (NiMH), and Nickel Cadmium (NiCd) when combined with an EV2400 USB adapter (...)
Not available on TI.com
Application software & framework

BQSTUDIO-TEST Battery Management Studio (bqStudio) Software – Beta version downloads

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

Supported products & hardware

Supported products & hardware

Products
Battery monitors & balancers
BQ769142 3-s to 14-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4 battery BQ76942 3-series to 10-series multicell battery monitor and protector BQ76952 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
Battery charger ICs
BQ24800 SMBus 1-4 cell Buck battery charge controller to support hybrid power boost and battery boost mode BQ25720 SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25723 I²C 1-4 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25731 I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support BQ25790 Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger BQ25792 I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
Battery fuel gauges
BQ27220 Single cell pack/system-side CEDV battery fuel (gas) gauge w/pre-programmed chemistry profiles BQ27320 Single cell pack/System-side CEDV battery fuel (gas) gauge BQ27425-G1 System-side Impedance Track™; fuel gauge with direct battery connection | gas gauge battery BQ27425-G2A System-side Impedance Track™; fuel gauge for LiCoO2 battery BQ27425-G2B System-side Impedance Track™; fuel gauge LiMn2O4 battery BQ27510-G3 System-side Impedance-Track fuel gauge that provides 32 bytes of user-programmable data Flash memory BQ27520-G4 System side Impedance Track™ fuel gauge with integrated LDO. BQ27530-G1 System-side Impedance-Track fuel (gas) gauge with direct battery connection BQ27531-G1 Battery management unit Impedance Track™ fuel (gas) gauge for bq2419x charger controller BQ27532-G1 Battery management unit Impedance Track™ fuel gauge for bq2425x charger BQ27541-G1 Pack-side Impedance Track™ battery fuel gauge with integrated LDO BQ27541-V200 Single cell Li-ion battery fuel gauge for battery pack Integration; FW upgrade to BQ27541 BQ27542-G1 Single cell Impedance Track™ pack side fuel gauge with SON package BQ27545-G1 Single cell, pack side, Impedance Track™ fuel gauge BQ27546-G1 Single cell Impedance Track™ pack side fuel gauge with DSBGA package BQ27621-G1 System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge BQ27741-G1 Pack-side Impedance Track™(tm) fuel (gas) gauge with integrated protector BQ27742-G1 Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge BQ27Z561 Impedance Track™ integrated circuit gas gauge solution for 1-series BQ27Z746 Pack-side, single-cell Impedance Track™ technology fuel gauge with integrated protector BQ28Z610 Battery fuel gauge with integrated protector for 1-2 series packs BQ34110 Multi-chemistry high-cell Count battery fuel gauge with integrated rarely discharged module BQ34210-Q1 Automotive Qualified Single cell system-side CEDV fuel gauge BQ34Z100-G1 Multi-chemistry Impedance Track™ standalone fuel gauge | battery gas gauge BQ35100 Battery fuel gauge for non-rechargeable batteries (lithium primary) and end-of-service monitor BQ4050 1-4 series CEDV battery fuel (gas) gauge BQ40Z50 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge BQ40Z50-R1 1-4 series Li-ion battery pack manager supporting Turbo Mode 1.0 BQ40Z50-R2 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0 BQ40Z60 Complete multi-cell battery manager | battery fuel (gas) gauge BQ40Z80 2-s to 6-s battery pack manager with Impedance Track™ gas gauging BQ78350 Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 CEDV li-ion gas gauge and battery management controller BQ78Z100 Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Hardware development
MKST-3P-ALT-EV2300 MKS Technology alternative for EV2300 communications transceiver
Software
BQ40Z50-R3-DEVICE-FW BQ40Z50-R3 device firmware: 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge
Download options
Application software & framework

BQSTUDIO-STABLE Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

Supported products & hardware

Supported products & hardware

Products
Battery monitors & balancers
BQ76942 3-series to 10-series multicell battery monitor and protector BQ76952 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
Battery charger ICs
BQ24800 SMBus 1-4 cell Buck battery charge controller to support hybrid power boost and battery boost mode BQ25720 SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25723 I²C 1-4 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25731 I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support BQ25790 Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger BQ25792 I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
Battery fuel gauges
BQ27220 Single cell pack/system-side CEDV battery fuel (gas) gauge w/pre-programmed chemistry profiles BQ27320 Single cell pack/System-side CEDV battery fuel (gas) gauge BQ27425-G1 System-side Impedance Track™; fuel gauge with direct battery connection | gas gauge battery BQ27425-G2A System-side Impedance Track™; fuel gauge for LiCoO2 battery BQ27425-G2B System-side Impedance Track™; fuel gauge LiMn2O4 battery BQ27510-G3 System-side Impedance-Track fuel gauge that provides 32 bytes of user-programmable data Flash memory BQ27520-G4 System side Impedance Track™ fuel gauge with integrated LDO. BQ27530-G1 System-side Impedance-Track fuel (gas) gauge with direct battery connection BQ27531-G1 Battery management unit Impedance Track™ fuel (gas) gauge for bq2419x charger controller BQ27532-G1 Battery management unit Impedance Track™ fuel gauge for bq2425x charger BQ27541-G1 Pack-side Impedance Track™ battery fuel gauge with integrated LDO BQ27541-V200 Single cell Li-ion battery fuel gauge for battery pack Integration; FW upgrade to BQ27541 BQ27542-G1 Single cell Impedance Track™ pack side fuel gauge with SON package BQ27545-G1 Single cell, pack side, Impedance Track™ fuel gauge BQ27546-G1 Single cell Impedance Track™ pack side fuel gauge with DSBGA package BQ27621-G1 System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge BQ27741-G1 Pack-side Impedance Track™(tm) fuel (gas) gauge with integrated protector BQ27742-G1 Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge BQ27Z561 Impedance Track™ integrated circuit gas gauge solution for 1-series BQ28Z610 Battery fuel gauge with integrated protector for 1-2 series packs BQ34110 Multi-chemistry high-cell Count battery fuel gauge with integrated rarely discharged module BQ34210-Q1 Automotive Qualified Single cell system-side CEDV fuel gauge BQ34Z100-G1 Multi-chemistry Impedance Track™ standalone fuel gauge | battery gas gauge BQ35100 Battery fuel gauge for non-rechargeable batteries (lithium primary) and end-of-service monitor BQ4050 1-4 series CEDV battery fuel (gas) gauge BQ40Z50 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge BQ40Z50-R1 1-4 series Li-ion battery pack manager supporting Turbo Mode 1.0 BQ40Z50-R2 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0 BQ40Z60 Complete multi-cell battery manager | battery fuel (gas) gauge BQ40Z80 2-s to 6-s battery pack manager with Impedance Track™ gas gauging BQ78350 Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 CEDV li-ion gas gauge and battery management controller BQ78Z100 Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Software
BQ40Z50-R3-DEVICE-FW BQ40Z50-R3 device firmware: 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge
Download options
Application software & framework

BQ-HI-PRODUCTION — Production Application Software for Hi-Cell Count Battery Fuel (Gas) Gauges

Hi-cell bqProduction offers a full suite of robust tools to assist with the process of configuring, calibrating, manufacturing and tracking printed circuit boards utilizing TI Battery management products. This includes features that allow writing a golden image followed by different types of (...)
Application software & framework

GPCCEDV — Gauging Parameter Calculator for CEDV gauges

Gauging Parameter Calculator (GPC) is a math calculation and simulation tool that helps the battery designer to obtain matching Compensated End of Discharge Voltage (CEDV) coefficients for the specific battery profile. The tool allows the user to increase the accuracy of the fuel gauge IC over (...)
Support software

bq34110 Firmware

SLUC622.ZIP (4184 KB)
Package Pins Download
TSSOP (PW) 14 View options

Ordering & quality

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