SLUUD64 December   2024 BQ41Z90

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
      1. 1.4.1 Before You Begin
  6. 2BQ41Z90EVM Quick Start Guide
    1. 2.1 Items Needed for EVM Setup and Evaluation
    2. 2.2 Software Installation
    3. 2.3 EVM Connections
      1. 2.3.1 Jumper Description
    4. 2.4 Update Firmware
  7. 3Hardware
    1. 3.1 BQ41Z90 Production Calibration Guide
  8. 4Software
    1. 4.1 Battery Management Studio
      1. 4.1.1 Registers Screen
      2. 4.1.2 Setting Programmable BQ41Z90 Options
      3. 4.1.3 Calibration Screen
        1. 4.1.3.1 Voltage Calibration
        2. 4.1.3.2 Temperature Calibration
        3. 4.1.3.3 Current Calibration
      4. 4.1.4 Chemistry Screen
      5. 4.1.5 Firmware Screen
        1. 4.1.5.1 Programming the Flash Memory
        2. 4.1.5.2 Exporting the Flash Memory
      6. 4.1.6 Advanced Comm SMB Screen
  9. 5Hardware Design Files
    1. 5.1 BQ41Z90EVM Circuit Module Schematic
    2. 5.2 Circuit Module Physical Layouts
      1. 5.2.1 Board Layout
      2. 5.2.2 Schematic
    3. 5.3 Bill of Materials
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7Related Documentation from Texas Instruments

4.1.4 Chemistry Screen

The chemistry file contains parameters that the simulations use to model the cell and the operating profile. A critical issue is to program a Chemistry ID that matches the cell into the device. Some of these parameters can be viewed in the Data Memory section of the Battery Management Studio.

  1. Download the most recent Chem Updater available here GASGAUGECHEM-SW Design tool | TI.com Place all Chemdat files into the Chemistry Folder inside the BatteryManagementStudio folder.
  2. Press the Chemistry button to select the Chemistry window.
    BQ41Z90 Chemistry Screen Figure 4-4 Chemistry Screen
  3. The table can be sorted by clicking the desired column for example: Click the Chemistry ID column header.
  4. Select the ChemID that matches the cells used from the table (see Figure 4-4).
  5. Press the Program Selected Chemistry button to update the chemistry in the device.
  6. (Optional) Press Program from GPCRB file button to program the Chemdat file exported from the GPCRB tool (low temperature optimization tool).
Note: To find which ChemIDs support IT-DZT, please contact a local TI representative.
Note: New ChemIDs are required for BQ41Z90, previously made ChemIDs needs to be recreated.