GPC Chemistry ID matching for Impedance Track (IT) algorithm gas gauges (Find closest chemistry match) must be done before Optimizing room temperature or low temperature performance.

Gauging Parameter Calculator Chemistry ID matching for Impedance track gas gauges (GPCCHEM) is a math calculation and simulation tool that helps the battery designer to obtain matching chemistry ID for the specific battery profile. Chemistry IDs are defined by Texas Instruments and can be programmed using Battery Management Studio (bqStudio). The GPCCHEM tool allows the user to increase the accuracy of the fuel gauge IC.

The battery pack must use one of TI’s Impedance Track(IT) algorithm based fuel gauges. It accepts log files in the format specified in the instruction manual. The log files can be created by using TI’s Battery Management Studio (bqStudio) software with the specific Evaluation board connected through USB, or by any battery tester with data logging capabilities like Arbin or Maccor. External equipment is required for charge and discharge. For accurate calculations it will also require additional parameters of the battery pack setup. The output information will be emailed as a text file containing the Chemistry ID. The chemistry ID data can be programmed into Data Flash using bqStudio to create a golden image that can be used in mass production of battery packs.

If bqStudio is used for logging, an EV2300 or EV2400 PC interface board is required to interface to the gas gauge, and a PC USB cable is required for communication with a PC. Both can be ordered online at Windows™-based PC software is available online as well. With the EV2300 or EV2400 interface board and software, the user can read the data registers, program the chipset for different configurations, log cycle data for further evaluation, and evaluate the overall functionality of the solution under different charge and discharge conditions.

This tool is an alternative to the existing Mathcad™ spreadsheet at

This tool does not require the purchase of a separate Mathcad™ license.

Depending on the specific gas gauge product, bqStudio software may provide a packaging utility to create the zip file from the log files.

Note: This tool is not applicable to Compensated End of Discharge Voltage (CEDV) gauges.

Email for support issues related to use of this page.

TI's Standard Terms and Conditions for Evaluation Modules apply.

BQ20Z60-R1 采用 Impedance Track™ 技术且符合 SBS 1.1 标准的电量监测计 BQ27520-G4 具有集成 LDO 的系统侧 Impedance Track™ 电量监测计 BQ27532-G1 适用于 bq2425x 充电器的电池管理单元 Impedance Track™ 电量监测计 BQ27541-G1 带集成 LDO 的电池组侧 Impedance Track™ 电池电量监测计 BQ27542-G1 采用 SON 封装的单节电池 Impedance Track™ 电池组侧电量监测计 BQ27545-G1 单节电池、电池组侧、Impedance Track™ 电量监测计 BQ27546-G1 采用 DSBGA 封装的单节电池 Impedance Track™ 电池组侧电量监测计 BQ27621-G1 具有动态电压相关性的系统侧电量监测计,电池电量监测计 BQ27741-G1 带集成保护器的电池组侧 Impedance Track™ 电量监测计 BQ27742-G1 具有集成保护功能的单节锂离子电池电量监测计 | 电池电量监测计 BQ34Z100-G1 多化合物 Impedance Track™ 独立电量监测计 | 电池电量监测计 BQ40Z50 1 至 4 节串联锂离子电池组管理器 | 电池电量监测计 BQ40Z50-R1 支持涡轮模式 1.0 的 1 至 4 节串联锂离子电池组管理器 BQ40Z50-R2 支持涡轮模式 2.0 的 1 至 4 节串联锂离子电池组管理器 BQ40Z60 完整的多节电池管理器 | 电池电量监测计


  1. Download the instruction manual for single or multiple cell (in series) battery pack and the data packaging tool (bqStudio) that creates zip file for upload
  2. Upload the zip file (login required)
  3. Gauging parameter calculation chemistry ID match report will be emailed to you, which will look like this sample report 


查看所有 2
类型 标题 下载最新的英文版本 日期
应用手册 TI电量计应用指导 2021年 6月 21日
应用手册 Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A) 2018年 6月 5日


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