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BQ28Z610-R1

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Battery fuel gauge with integrated protector for 1-2 series packs

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Data sheet
User guides

BQ28Z610-R1

ACTIVE
Data sheet Order now

Product details

Cell chemistry Li-Ion/Li-Polymer Number of series cells 1-2 Cells Communication interface I2C Battery capacity (Min) (mAh) 100 Battery capacity (Max) (mAh) 14000 Implementation Pack External capacity indication None Features Cell Balancing, Impedance Track™ algorithm, Integrated Protector, SHA-1 Authentication Operating temperature range (C) -40 to 85 Cell balancing External, Internal
Cell chemistry Li-Ion/Li-Polymer Number of series cells 1-2 Cells Communication interface I2C Battery capacity (Min) (mAh) 100 Battery capacity (Max) (mAh) 14000 Implementation Pack External capacity indication None Features Cell Balancing, Impedance Track™ algorithm, Integrated Protector, SHA-1 Authentication Operating temperature range (C) -40 to 85 Cell balancing External, Internal
VSON (DRZ) 12 10 mm² 2.5 x 4
  • Autonomous battery charging control, using a dedicated MASTER mode I2C interface
  • Cell balancing with an internal bypass to optimize battery health
  • A high-side protection N-CH FET drive enables serial bus communication during fault conditions
  • Programmable protection levels for voltage, current, and temperature
  • Analog front-end with two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error < 1 µV (typical)
  • Supports down to 1-mΩ current sense resistor while capable of 1-mA current measurement
  • Supports battery trip point (BTP) function for Windows integration
  • SHA-1 authentication responder for increased battery pack security
  • 400-kHz I2C bus communications interface for high-speed programming and data access
  • Compact 12-pin VSON package (DRZ)
  • Autonomous battery charging control, using a dedicated MASTER mode I2C interface
  • Cell balancing with an internal bypass to optimize battery health
  • A high-side protection N-CH FET drive enables serial bus communication during fault conditions
  • Programmable protection levels for voltage, current, and temperature
  • Analog front-end with two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error < 1 µV (typical)
  • Supports down to 1-mΩ current sense resistor while capable of 1-mA current measurement
  • Supports battery trip point (BTP) function for Windows integration
  • SHA-1 authentication responder for increased battery pack security
  • 400-kHz I2C bus communications interface for high-speed programming and data access
  • Compact 12-pin VSON package (DRZ)

The Texas Instruments BQ28Z610-R1 device is a highly integrated, accurate, 1-series to 2-series cell gas gauge and protection solution, providing autonomous charger control and cell balancing.

The BQ28Z610-R1 device enables autonomous charge control through Master Mode I2C broadcasts of charging current and voltage information, eliminating software overhead that is typically incurred by the system’s host controller.

The BQ28Z610-R1 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1- to 2-series cell Li-ion and Li-polymer battery packs.

The BQ28Z610-R1 gas gauge communicates via an I2C compatible interface and combines an ultra-low-power, high-speed TI BQBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

The Texas Instruments BQ28Z610-R1 device is a highly integrated, accurate, 1-series to 2-series cell gas gauge and protection solution, providing autonomous charger control and cell balancing.

The BQ28Z610-R1 device enables autonomous charge control through Master Mode I2C broadcasts of charging current and voltage information, eliminating software overhead that is typically incurred by the system’s host controller.

The BQ28Z610-R1 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1- to 2-series cell Li-ion and Li-polymer battery packs.

The BQ28Z610-R1 gas gauge communicates via an I2C compatible interface and combines an ultra-low-power, high-speed TI BQBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.
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Technical documentation

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Type Title Date
* Data sheet BQ28Z610-R1 Impedance Track™ Gas Gauge and Protection Solution for 1-Series to 2-Series Cell Li-Ion Battery Packs datasheet (Rev. B) PDF | HTML 30 Jun 2021
* User guide BQ28Z610-R1 Technical Reference Manual 16 Jan 2020
Application note Autonomous Smart Battery Guide PDF | HTML 15 Oct 2021
Application note BQ28Z610-R1 Change List (Rev. A) 14 Apr 2021
Application note Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A) 05 Jun 2018
Application note Gauge Communication 12 Jan 2017
Application note How to complete a successful learning cycle for the bq28z610/bq78z100 23 Jun 2016

Design & development

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

Evaluation board

BQ28Z610EVM-532 — BQ28Z610 1-Cell to 2-Cell Programmable Battery Manager Evaluation Module

The bq28z610 EVM evaluation module (EVM) is a complete evaluation system for the bq28z610 or bq294502 battery management system. The EVM includes one bq28z610 and bq294502 circuit module and a link to Windows™ based PC software. The circuit module includes one bq28z610  integrated (...)

User guide: PDF
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Application software & framework

BQSTUDIO — 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 (...)
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Firmware

BQ28Z610-R2-DEVICE-FW — BQ28Z610-R2 device firmware: 1- to 2-series cell pack, battery fuel gauge with integrated protector

The BQ28Z610-R2-DEVICE-FW is a firmware (FW) upgrade for the BQ28Z610 and BQ28Z610-R1 devices. The BQ28Z610 and BQ28Z610-R1 are a highly integrated, accurate, 1-series to 2-series cell gas gauge with protection solution, providing autonomous charger control and cell balancing.
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Support software

BQ28Z610-R1 Gauging Firmware (Rev. A)

SLUC653A.ZIP (4424 KB)
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Reference designs

PMP40496 — 2-cell boost charge system reference design with 5-V USB

This 5-V USB, 2-cell battery boost charger reference design includes a charger system and a 2-cell battery holder with a gauge that can be connected by a cable or work independently. The key components of the charger system include the BQ25883 boost charger, TUSB320LAI Type-C CC logic, (...)
Schematic: PDF
Reference designs

PMP9769 — Automotive eCall Power Supply Reference Design with Low Intermediate Voltage

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
Schematic: PDF
Reference designs

TIDA-00895 — 1 to 2s I2C Li-Ion Battery Pack Manager Reference Design

The Texas Instruments bq28z610 device is a Battery Pack Manager that integrates gas gauging, and protection for complete autonomous operation of 1-series to 2-series cell Li-Ion and Li-Polymer battery packs. The architecture enables communication between the fuel gauging processor and an internal (...)
Schematic: PDF
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SON (DRZ) 12 View options

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