Battery management ICs

Get more out of your battery

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Our battery management solutions, tools and expertise make it easier for you to design more efficient, longer lasting and more reliable battery-powered applications. Our battery management portfolio includes chargers, gauges, monitors and protection ICs that can be used in industrial, automotive and personal electronic applications. 

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BQ79731-Q1
Battery monitors & balancers

Automotive battery junction box voltage monitor, current sensor and isolation impedance sensor

Approx. price (USD) 1ku | 8.388

BQ77307
Battery protectors

Low-power protector for 2S to 7S with high accuracy cell voltage measurement

Approx. price (USD) 1ku | 0.62

BQ25638
Battery charger ICs

I²C controlled, 1-cell 5-A maximum 18-V input buck charger with NVDC power path and USB OTG output

Approx. price (USD) 1ku | 1.33

BQ27Z558
Battery fuel gauges

Single-cell Impedance Track™ technology gas gauge with 1.2V IO support

Approx. price (USD) 1ku | 0.55

BQ76905
Battery monitors & balancers

Low-power monitor and protector for 2S to 5S with high accuracy cell voltage measurement

Approx. price (USD) 1ku | 0.62

BQ25750
Battery charger ICs

Stand-alone or I²C-controlled 70-V bidirectional buck-boost charge controller with power path

Approx. price (USD) 1ku | 3.49

Technical resources

Functional safety information
Functional safety information
Functional Safety Considerations in Battery Management for Vehicles
Read about battery monitor considerations to help you meet the ISO 26262 functional safety standard in electric vehicles.
document-pdfAcrobat PDF
White paper
White paper
Wired vs. Wireless Communications In EV Battery Management (Rev. A)
Learn about design considerations for wired and wireless battery management systems in electric vehicles.
document-pdfAcrobat PDF
White paper
White paper
Combining Buck-Boost Battery Chargers and USB Type-C Power Delivery for Maximum (Rev. A)
Get an understanding of the benefits of combining USB Type-C® Power Delivery and buck-boost charging to achieve maximum power density for portable electronic designs.
document-pdfAcrobat PDF

Discover featured applications

Medical
Create a safe, efficient and long-lasting battery system in medical applications with our battery management technology
Hybrid and electric vehicles
Increase functional-safety and run time in HEV and EV applications with our battery management technology
Garden and power tools
Enable a long-lasting and quick-charging battery system in garden and power tool applications with our battery management technology
Mobile phones and tablets
Quickly charge devices and prolong use with our battery management technology
Energy storage systems
Create high-accuracy, protected battery systems in ESS applications with our battery management technology
E-mobility
Generate fast-charging, reliable and accurate battery systems in e-mobility applications with our battery management technology

Create a safe, efficient and long-lasting battery system in medical applications with our battery management technology

Benefits:

  • Gauges offer programmable hardware and firmware-based protections alongside high system-on-a-chip accuracy.
  • Chargers support multicell configurations and parallel battery packs, and provide quick backup functionality for seamless transition during a main power failure.
  • Protectors provide features for one-cell-in-series battery systems through voltage, current and temperature, using external power temperature coefficient protections in a cost-optimized solution. Extend product shelf life with our low-power consumption mode and improved thermal performance. 

Featured resources

PRODUCTS
  • BQ40Z50-R2 – 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0
  • BQ25731 – I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support
  • BQ2982 – High-side protector for single-cell Li-ion and Li-polymer batteries with 0-V charge disabled
HARDWARE DEVELOPMENT
  • BQ40Z50EVM-561 – BQ40Z50 evaluation board 
  • BQ25731EVM – I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module
  • BQ2980EVM-883 – bq2980 Single Cell High-side Protector Evaluation Module
DESIGN TOOLS AND SIMULATION
  • BQSTUDIO – Battery Management Studio (bqStudio) Software
  • TI-CHARGER-GUI – GUI software for use with USB2ANY & battery charging evaluation modules

Increase functional-safety and run time in HEV and EV applications with our battery management technology

Benefits:

  • Monitors provide ±1mV accuracy and synchronized readings of cell voltages and pack current.
  • Gauges offer simple setup configuration and support multiple cell chemistries for easy integration into an e-call system.

Featured resources

PRODUCTS
  • BQ79600-Q1 – Automotive SPI/UART communication interface functional-safety compliant with automatic host wakeup
  • BQ79718-Q1 – Automotive 18-s precise battery monitor, balancer and integrated protector compliant to ASIL-D
  • BQ34210-Q1 – Automotive Qualified Single cell system-side CEDV fuel gauge
HARDWARE DEVELOPMENT
  • BQ79600EVM – Functional Safety-Compliant SPI/UART to daisy chain bridge interface with automatic host wake-up
  • BQ79718EVM-049 – BQ79718 evaluation module, 18-S automotive precision battery monitor, balancer, integrated protector
  • BQ34210IQ1EVM-826 – bq34210-Q1 Evaluation Module for System Side CEDV Fuel Gauge

Enable a long-lasting and quick-charging battery system in garden and power tool applications with our battery management technology

Benefits:

  • Gauges have precise gauging algorithms to ensure the battery's exact state of charge. A chemistry-ID system enables shorter design cycles without sacrificing accuracy.
  • Chargers support the entire USB Type-C® Power Delivery spectrum (20V, 5A) and multicell battery packs.
  • Monitors offer high-accuracy voltage measurements (±5mV at 25°C) capable of autonomous or host-controlled cell balancing (through I2C, Serial Peripheral Interface or High-Speed Data Queue) for three to 16 cells in series. 
  • Protectors provide secondary redundant protections when leveraged with our monitors.

Featured resources

PRODUCTS
  • BQ34Z100-R2 – Multichemistry Impedance Track™ stand-alone fuel gauge
  • BQ25731 – I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support
  • BQ76942 – 3-series to 10-series multicell battery monitor and protector
HARDWARE DEVELOPMENT
  • BQ34Z100EVM – Bq34z100EVM 1s to 16s Impedance Track Fuel Gauge Battery Evaluation Module | Gas Gauge Battery
  • BQ25731EVM – I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module
  • BQ76942EVM – 3-series to 10-series Li-ion, Li-polymer and LiFePO4 battery monitor and protector EVM
DESIGN TOOLS AND SIMULATION
  • BQSTUDIO – Battery Management Studio (bqStudio) Software
  • TI-CHARGER-GUI – GUI software for use with USB2ANY & battery charging evaluation modules

Quickly charge devices and prolong use with our battery management technology

Benefits:

  • Gauges provide ±1mV gauging accuracy, while cell balancing maximizes battery life spans, enabling longer device use.
  • Chargers provide charge current up to 8A with high efficiency using inductorless switch capacitor technology.
  • Protectors boast a reduced feature size and power dissipation of approximately 4μA, suitable for small-form-factor products, while offering both primary and secondary protection options.

Featured resources

PRODUCTS
  • BQ27Z746 – Pack-side, single-cell Impedance Track™ technology fuel gauge with integrated protector
  • BQ25970 – I2C 1cell 8A switched cap battery charger for Parallel Charging Application and external OVP support
  • BQ2982 – High-side protector for single-cell Li-ion and Li-polymer batteries with 0-V charge disabled
HARDWARE DEVELOPMENT
  • BQ27Z746EVM-047 – BQ27Z746 evaluation module Impedance Track™ technology battery gas gauge with protection solution
  • BQ25970EVM-893 – bq25970 Complete Charger Evaluation Module
  • BQ2980EVM-883 – bq2980 Single Cell High-side Protector Evaluation Module
DESIGN TOOLS AND SIMULATION
  • BQSTUDIO – Battery Management Studio (bqStudio) Software
  • TI-CHARGER-GUI – GUI software for use with USB2ANY & battery charging evaluation modules

Create high-accuracy, protected battery systems in ESS applications with our battery management technology

Benefits:

  • Monitors offer a reliable and stackable solution for small-scale residential energy storage systems (ESS) and up to grid-scale ESS with high-accuracy voltage measurements (±5mV) for high-voltage battery systems.
  • Gauges provide high state-of-health accuracy for vital system reporting. They support multiple cell chemistries and provide end of service for rarely discharged devices.
  • Chargers support up to 20A of charge current to quickly recharge backup batteries and handle up to 70V on the output for a wide variety of backup battery configurations.

Featured resources

PRODUCTS
  • BQ34Z100-R2 – Multichemistry Impedance Track™ stand-alone fuel gauge
  • BQ25756 – Stand-alone or I²C-controlled 70-V bidirectional buck-boost charge controller with MPPT
  • BQ79616-Q1 – 16-S automotive precision battery monitor, balancer and integrated protector with ASIL-D compliance
HARDWARE DEVELOPMENT
  • BQ34Z100EVM – Bq34z100EVM 1s to 16s Impedance Track Fuel Gauge Battery Evaluation Module | Gas Gauge Battery
  • BQ25756EVM – BQ25756 evaluation module for 1- to 14-cell bidirectional buck-boost battery charge controller
  • BQ79616EVM-021 – BQ79616 evaluation module for 16-S precision battery monitor, balancer and integrated protector
DESIGN TOOLS AND SIMULATION
  • BQSTUDIO – Battery Management Studio (bqStudio) Software
  • TI-CHARGER-GUI – GUI software for use with USB2ANY & battery charging evaluation modules

Generate fast-charging, reliable and accurate battery systems in e-mobility applications with our battery management technology

Benefits:

  • Gauges offer built-in authentication, preventing unofficial battery packs. A –40°C to 150°C operating temperature range ensures reliability in almost any environment.
  • Chargers offer USB Type-C® Power Delivery Extended Power Range capability for up to 240W charging, support for batteries with 10 to 16 cells in series, and bidirectional power flow through (for example) an e-bike battery to charge personal electronics.
  • Monitors and protectors for batteries with three to 16 cells in series can be leveraged for redundant protections to meet mobile application safety requirements.

Featured resources

PRODUCTS
  • BQ34Z100-R2 – Multichemistry Impedance Track™ stand-alone fuel gauge
  • BQ25756 – Stand-alone or I²C-controlled 70-V bidirectional buck-boost charge controller with MPPT
  • BQ76952 – 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
HARDWARE DEVELOPMENT
  • BQ34Z100EVM – Bq34z100EVM 1s to 16s Impedance Track Fuel Gauge Battery Evaluation Module | Gas Gauge Battery
  • BQ25756EVM – BQ25756 evaluation module for 1- to 14-cell bidirectional buck-boost battery charge controller
  • BQ76952EVM – 3-s to 16-s Li-ion, Li-polymer, and LiFePO4 battery monitor and protector evaluation module
DESIGN TOOLS AND SIMULATION
  • BQSTUDIO – Battery Management Studio (bqStudio) Software
  • TI-CHARGER-GUI – GUI software for use with USB2ANY & battery charging evaluation modules

Design & development resources

Application software & framework
Battery Management Studio (bqStudio) Software

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 (...)

Calculation tool
Gauging Parameter Calculator
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
MathCAD compensated end of discharge voltage (CEDV) tool

Math calculation and simulation tool that helps the battery designer to obtain matching CEDV coefficients for the specific chemistry in the battery pack using one of TI’s CEDV algorithm based fuel gauge. It accepts 3 pairs of log files that can be created by using TI’s bq Smart Battery Builder (...)

Reference designs related to Battery management ICs

Use our reference design selection tool to find designs that best match your application and parameters.