1-4 series Li-ion battery pack manager supporting Turbo Mode 1.0
Product details
Parameters
Package | Pins | Size
Features
- Fully Integrated 1-Series, 2-Series, 3-Series, and
4-Series Li-Ion or Li-Polymer Cell Battery Pack
Manager and Protection - Next-Generation Patented Impedance Track™
Technology Accurately Measures Available
Charge in Li-Ion and Li-Polymer Batteries - High Side N-CH Protection FET Drive
- Integrated Cell Balancing While Charging or At
Rest - Full Array of Programmable Protection Features
- Voltage
- Current
- Temperature
- Charge Timeout
- CHG/DSG FETs
- AFE
- Sophisticated Charge Algorithms
- JEITA
- Enhanced Charging
- Adaptive Charging
- Cell Balancing
- Supports TURBO BOOST Mode
- Supports Battery Trip Point (BTP)
- Diagnostic Lifetime Data Monitor and Black Box
Recorder - LED Display
- Supports Two-Wire SMBus v1.1 Interface
- SHA-1 Authentication
- Compact Package: 32-Lead QFN (RSM)
Description
The bq40z50-R1 device, incorporating patented Impedance Track™ technology, is a fully integrated, single-chip, pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 1-series, 2-series, 3-series, and 4-series cell Li-Ion and Li-Polymer battery packs.
Using its integrated high-performance analog peripherals, the bq40z50-R1 device measures and maintains an accurate record of available capacity, voltage, current, temperature, and other critical parameters in Li-Ion or Li-Polymer batteries, and reports this information to the system host controller over an SMBus v1.1 compatible interface.
The bq40z50-R1 device supports TURBO BOOST mode by providing the available max power and max current to the host system. The device also supports Battery Trip Point to send a BTP interrupt signal to the host system at the pre-set state of charge thresholds.
The bq40z50-R1 provides software-based 1st- and 2nd-level safety protection against overvoltage, undervoltage, overcurrent, short-circuit current, overload, and overtemperature conditions, as well as other pack- and cell-related faults.
SHA-1 authentication, with secure memory for authentication keys, enables identification of genuine battery packs.
The compact 32-lead QFN package minimizes solution cost and size for smart batteries while providing maximum functionality and safety for battery gauging applications.

More information
The latest firmware release is now available Request now
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | bq40z50-R1 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager datasheet | Jul. 06, 2015 |
* | User guide | bq40z50-R1 Technical Reference Manual (Rev. D) | Jan. 17, 2018 |
E-book | Ein Techniker-Leitfaden für Industrieroboter-Designs | Mar. 25, 2020 | |
E-book | E-book: An engineer’s guide to industrial robot designs | Feb. 12, 2020 | |
Application note | bq40z50-R2 v2.08 to v2.11 Change List (Rev. A) | Apr. 24, 2018 | |
Application note | bq40z50-R1 to bq40z50-R2 Change List | Jul. 13, 2017 | |
Technical articles | How to choose a multicell gauge | Dec. 16, 2016 | |
Application note | Turbo Mode 1.0 Setup Steps | Dec. 13, 2016 | |
Application note | SMBus Made Simple | Nov. 09, 2016 | |
Technical articles | How active and passive cell balancing works | Oct. 05, 2016 | |
Technical articles | Batteries get smarter with intelligent gauges | Nov. 03, 2015 | |
Technical articles | Get to know your battery pack – part 2 | Oct. 23, 2015 | |
Application note | bq40z50 to bq40z50-R1 Change List | Jul. 29, 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
BQ40z50EVM is a complete system useful for evaluating the functionality of the bq40z50 fuel gauge. As described on the BQ40z50 product folder, this gauge is appropriate for applications powered by multi-cell battery systems. The EVM includes one bq40z50 circuit module, a current sense resistor, and (...)
Features
- Populated circuit module for quick setup
- Software allows data logging for system analysis
- Complete evaluation system for the bq40z50 battery management IC
Software development
Features
- Support for the EV2300 Works with Advanced bqMTester hardware
- Control multiple stations from a single graphical user interface
- Run up to 12 stations in parallel from a single computer
- Uses industry standard Motorola srec format Golden image programmer
- Calibration and test automation Unique Serial number (...)
Features
- Real-time Gauge Dashboard for monitoring basic registers
- Full register access and logging
- Full data memory access and logging
- Product configuration and monitoring tools
- Import and export of product configurations
- Calibration and test automation
- Export of FS files for the target production environment
Gauging Parameter Calculator Chemistry ID matching for Impedance track gas gauges (GPCCHEM) is a math calculation and (...)
Features
- The BQ40Z50-R3 firmware is usable on any previous version of the BQ40Z50 hardware
- Supports Intel® dynamic battery power technology (Intel® DBPT) version 3.0 by providing the available max power, max current, Vload and Rhfeffective
- New expanded lifetime logging capabilities with customer configurable (...)
Reference designs
Design files
-
download TIDA-00883 BOM.pdf (80KB) -
download TIDA-00883 Assembly Drawing.pdf (197KB) -
download TIDA-00883 PCB.pdf (1656KB) -
download TIDA-00883 CAD Files.zip (456KB) -
download TIDA-00883 Gerber.zip (393KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RSM) | 32 | View options |
Ordering & quality
- 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.