Impedance Track, NanoFree are trademarks of Texas Instruments.
I2C is a trademark of Philips Electronics.
The Texas Instruments bq27505-J5 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system micro-controller firmware development. The bq27505-J5 resides on the system’s main board and manages an embedded battery (nonremovable) or a removable battery pack.
The bq27505-J5 uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min), battery voltage (mV), temperature (°C) and state of health(%).
Battery fuel gauging with the bq27505-J5 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery circuit. The CSP option is a 12-ball package in the dimensions of 2.43mm × 1.96mm with 0.5mm lead pitch. It is ideal for space constrained applications.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | System Side Impedance Track Fuel Gauge - bq27505-J5 datasheet | 30 Sep 2010 | |
| Application note | Going to Production With the bq275xx (Rev. F) | 09 Oct 2014 | ||
| Application note | Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm (Rev. A) | PDF | HTML | 16 May 2014 | |
| Application note | Using I2C Communication With the bq275xx Series of Fuel Gauges (Rev. B) | 15 May 2014 | ||
| Application note | Going to Production With the bq275xx (Rev. E) | 20 Jan 2012 | ||
| Application note | bq27505-J4 to bq27505-J5 Change List | 09 May 2011 | ||
| Application note | How to Generate Golden Image for Single-Cell Impedance Track(TM) Devices | 07 Jan 2010 | ||
| Application note | Quick-Start Guide for bq27505 Family Gas Gauge | 08 Aug 2009 | ||
| Application note | Updating Firmware with the bq2750x and EVM. (Rev. A) | 22 Jul 2008 | ||
| Application note | Impedance Track Fuel Gauge Accuracy Test for GSM Phone Applications | 21 Mar 2008 |
For additional terms or required resources, click any title below to view the detail page where available.
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 (...)
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 (...)
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 (YZG) | 12 | Ultra Librarian |
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.
Software installer to enable BQEVSW to use MKST-3P-ALT-EV2300
Software manifest
Description:
BQEVSW-MKST-UPDATE software is a software update for BQEVSW (bq Evaluation Software) and BQEASY (bq EV-Easy) to allow it to work with the MKST-3P-ALT-EV2300 MKS Technology alternative for EV2300 communications transceiver. This update installs a program that allows switching the USB transceiver target in software like BQEVSW and BQEASY from/to EV2300 to/from MKST-3P-ALT-EV2300.
The program requires administrator privileges.
Requirements:
Features:
Getting started:
1. Download the software
2. Run the installer and check the option to create shortcuts
3. Run the program using shortcut named BQEVSW-MKST-UPDATE from Start menu/Desktop
4. Allow administrator privilege when/if prompted
5. On the GUI window that opens, select the target transceiver to support and follow steps to switch
6. Connect matching transceiver and start BQEVSW, BQEASY or other similar software.
Note: BQMTESTER-MKST-UPDATE and BQEVSW-MKST-UPDATE both update the same software components. Switching the USB transceiver using any of these shortcuts will also switch it in the other.
Software installer to enable BQMTESTER to use MKST-3P-ALT-EV2300
Software manifest
Description:
BQMTESTER-MKST-UPDATE software is a software update for BQMTESTER(BQMTESTER Multi Channel Test and Program software) and ADVANCED-BQMTESTER(Advanced bqMTester Multi-Station Test and Program Software) to allow it to work with the MKST-3P-ALT-EV2300 MKS Technology alternative for EV2300 communications transceiver. This update installs a program that allows switching the USB transceiver target in BQMTESTER and ADVANCED-BQMTESTER software from/to EV2300 to/from MKST-3P-ALT-EV2300. There are also some changes required on the hardware side as described in the PDF guide in the install folder.
The program requires administrator privileges.
Requirements:
Getting started:
1. Download the software
2. Run the installer and check the option to create shortcuts
3. Run the program using shortcut named BQMTESTER-MKST-UPDATE from Start menu/Desktop
4. Allow administrator privilege when/if prompted
5. On the GUI window that opens, select the target transceiver to support and follow steps to switch
6. Connect matching transceiver and start BQMTESTER or ADVANCED-BQMTESTER software
Note: BQMTESTER-MKST-UPDATE and BQEVSW-MKST-UPDATE both update the same software components. Switching the USB transceiver using any of these shortcuts will also switch it in the other.