The Texas Instruments BQ27Z558 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge with a flash programmable custom reduced instruction-set CPU (RISC) and SHA-256 authentication for Li-ion and Li-polymer battery packs. The 1-series cell capability includes parallel cells for increased capacity.
The BQ27Z558 gas gauge communicates through I 2C-compatible and HDQ one-wire interfaces and includes several key features that can help facilitate accurate gas gauging applications. Integrated temperature sense functions (internal and external options) enable system and battery temperature measurements.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | BQ27Z558 Impedance Track™ Battery Gas Gauge Solutionfor 1-Series Cell Li-Ion Battery Packs, with 1.2-V IO Support datasheet | PDF | HTML | 10 Nov 2023 |
| User guide | BQ27Z561-R2 and BQ27Z558 Technical Reference Manual (Rev. C) | PDF | HTML | 03 Mar 2024 | |
| EVM User's guide | BQ27Z558EVM-084 Single-Cell Impedance Track™ Technology | PDF | HTML | 08 Nov 2023 |
For additional terms or required resources, click any title below to view the detail page where available.
The BQ27Z558 evaluation module (EVM) is a development platform for the BQ27Z558 battery gauge. The circuit module includes the BQ27Z558 integrated circuit (IC) and all other components necessary to monitor and predict capacity for 1-series cell lithium-ion (Li-ion) or lithium-polymer (li-polymer) (...)
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YPH) | 12 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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.
SDK, API, and Programmer installer
Quick Tips text document for Command line programmers
Software Manifest
Description:
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS Technology alternative for EV2300 communications transceiver. The executables work with a single station but can be extended to multiple stations by using additional software and GUI from MKS Technology Inc. . Support for multiple stations is not included in this software.
There are multiple executables in the download, usually one per family of products. Older products such as BQ20xxx and BQ30xxx are also supported. Examples using the C++ programming language API and Python® programming language are provided for custom development.
Requirements:
Features:
Getting started:
1. Download the software
2. Run the installer
3. The executables, C API and Python API files can be found in the install location
4. Run the command line executable without arguments to get usage help. Refer to Readme.txt in the install folder for more information and how to get help using the command line.