Product details


Number of series cells (Min) 6 Features Cell balancing, Integrated ADC, Multi-cell support, Open-wire detection, Overtemperature protection, Overvoltage protection, Separate MCU requirement, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection Number of series cells (Max) 16 Operating temperature range (C) -40 to 125 Rating Automotive open-in-new Find other Battery monitors & balancers

Package | Pins | Size

HTQFP (PAP) 64 100 mm² 10 x 10 open-in-new Find other Battery monitors & balancers


  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL D
  • +/- 1.5mV ADC accuracy
  • Pin-package and software compatible device family:
    • Stackable monitor 16S (BQ79616-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)
    • Standalone monitor 48 V system (BQ75614-Q1)
  • Built-in redundancy path for voltage and temperature diagnostics
  • Highly accurate cell voltage measurements within 128 µs for all cell channels
  • Integrated post-ADC configurable digital low-pass filters
  • Supports bus bar connection and measurement
  • Built-in host-controlled hardware reset to emulate POR-like device reset
  • Supports internal cell balancing
    • Balancing current at 240 mA
    • Built-in balancing thermal management with automatic pause and resume control
  • Isolated differential daisy chain communication with optional ring architecture
  • Embedded fault signal and heartbeat through communication line
  • UART/SPI host interface/communication bridge device BQ79600-Q1
  • Built-in SPI master
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BQ79612-Q1, BQ79614-Q1 and BQ79616-Q1 provide high-accuracy cell voltage measurements in less than 200 µs for 12S, 14S and 16S battery modules in high-voltage battery management systems in HEV/EV. The family of monitors offers different channel options in the same package type, providing pin-to-pin compatibility and supporting high reuse of the established software and hardware across any platform. The integrated front-end filters enable the system to implement with simple, low voltage rating, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better state of charge (SOC) calculation. This device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.

The inclusion of the isolated, bidirectional, daisy chain ports supports both capacitor- and transformer-based isolation, allowing the use of the most effective components for centralized or distribution architectures commonly found in the xEV powertrain system. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.

Host communication to the BQ7961x-Q1 family of devices can be connected via the device’s dedicated UART interface or through a communication bridge device, BQ79600. Additionally, an isolated, differential daisy-chain communication interface allows the host to communicate with the entire battery stack over a single interface. in the event of a communication line break, the daisy-chain communication interface is configurable to a ring architecture that allows the host to talk to devices at either end of the stack.

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Request more information

  • Full data sheet and other design resources are available. Request now
  • Functional safety documentation to aid ISO 26262 system design is available. Request now
  • The TÜV SÜD Functional safety concept assessment on the TI wireless battery management system is available.  Request now
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Pin-for-pin with same functionality to the compared device.
NEW BQ75614-Q1 ACTIVE 14-S automotive precision battery monitor, balancer and integrated protector with ASIL-D compliance Pin compatible with BQ79616-Q1. Same 64-pin QFP package with the current sensing feature.
NEW BQ79656-Q1 ACTIVE Automotive 16-S precision battery monitors, balancer, current sensor with ASIL-D compliance Pin compatible with BQ79616-Q1. Same 64-pin QFP package with the current sensing feature.

Technical documentation

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Type Title Date
* Data sheet BQ79616-Q1, BQ79614-Q1, BQ79612-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector datasheet (Rev. C) Jun. 10, 2021
Application note Expanding Functionality of Cell Supervision Unit in Battery Management Systems Sep. 14, 2021
Technical article Improve wireless battery management with the industry’s best network availability Jan. 07, 2021
Application note BQ79616-Q1 Software Design Reference (Rev. A) Dec. 14, 2020
User guide BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide Dec. 14, 2020
Technical article Enhance thermal management in EVs with autonomous cell balancing Dec. 09, 2020
Technical article Conserve battery power in HEV/EVs with automatic host reverse wakeup Dec. 04, 2020
White paper Wired vs. Wireless Communications In EV Battery Management... Nov. 04, 2020
White paper Wired vs. Wireless Communications In EV Battery Management Oct. 20, 2020
User guide BQ79616-Q1, BQ75614-Q1, BQ79656-Q1 Evaluation Module User's Guide (Rev. B) Oct. 02, 2020
White paper Functional Safety Considerations in Battery Management for Vehicle Electrificati Sep. 17, 2020
White paper 차량 전기화를 위한 배터리 관리시 기능적 안전성 고려 사항 Sep. 17, 2020
Technical article Three questions to ask about wireless BMS for hybrid and electric vehicles Feb. 18, 2020
User guide Functional Safety-Relevant Wireless Communication in Automotive BMS Jan. 06, 2020

Design & development

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

Hardware development

document-generic User guide
The BQ79616EVM  is an evaluation board for the BQ79616-Q1. The BQ79616-Q1 provides high accuracy, channel measurements for six to sixteen battery cells. With the inclusion of a daisy chain communication port, the BQ79616-Q1 device is stackable (up to 35 devices) to support large stack (...)
  • Highly accurate monitoring of 16 li-ion cells
  • Integrated protector
  • Internal cell balancing
  • 1-Mb/s stackable isolated differential-UART
  • ASIL-D voltage/temperature/communication

Software development

SLVC810A.ZIP (34804 KB)

CAD/CAE symbols

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HTQFP (PAP) 64 View options

Ordering & quality

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