Top

Product details

Parameters

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

Features

  • 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), 14S (BQ79614-Q1), and 12S (BQ79612-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

All trademarks are the property of their respective owners.

open-in-new Find other Battery monitors & balancers

Description

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.

open-in-new Find other Battery monitors & balancers
Download

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

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 13
Type Title Date
* Datasheet BQ79616-Q1, BQ79614-Q1, BQ79612-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector datasheet (Rev. B) Dec. 10, 2020
Technical article How to stack battery monitors for high-cell-count industrial applications Feb. 11, 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
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

EVALUATION BOARD Download
document-generic User guide
399
Description
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 (...)
Features
  • 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

SUPPORT SOFTWARE Download
SLVC810.ZIP (35319 KB)

CAD/CAE symbols

Package Pins Download
HTQFP (PAP) 64 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos