SLUUCQ5 March   2023 BQ28Z620

 

  1. 1BQ28Z620EVM 1- to 2-Series Li-Ion Battery Pack Manager Evaluation Module
    1. 1.1 Features
      1. 1.1.1 Kit Contents
      2. 1.1.2 Ordering Information
      3. 1.1.3 Documentation
      4. 1.1.4 BQ28Z620 and BQ294502 Circuit Module Performance Specification Summary
    2. 1.2 BQ28Z620EVM Quick Start Guide
      1. 1.2.1 Items Needed for EVM Setup and Evaluation
      2. 1.2.2 Software Installation
      3. 1.2.3 EVM Connections Module Connections
    3. 1.3 Battery Management Studio
      1. 1.3.1 Starting the Program
      2. 1.3.2 Registers Screen
      3. 1.3.3 Data Memory Screen
      4. 1.3.4 Calibration Screen
        1. 1.3.4.1 Voltage Calibration
        2. 1.3.4.2 Temperature Calibration
        3. 1.3.4.3 Current Calibration
      5. 1.3.5 Authentication Screen
      6. 1.3.6 Chemistry Selection
      7. 1.3.7 Programming Screen
        1. 1.3.7.1 Programming the Flash Memory
        2. 1.3.7.2 Generating The Golden Image
      8. 1.3.8 Advanced Comm I2C Screen
      9. 1.3.9 Watch Screen
    4. 1.4 Circuit Module Physical Layouts and Bill of Materials
      1. 1.4.1 Board Layout
      2. 1.4.2 Bill of Materials
      3. 1.4.3 Schematic
      4. 1.4.4 Testing Fuse-Blowing Circuit
  2. 2Revision History

1.3.4.3 Current Calibration

The Board Offset calibration option is not offered in Battery Management Studio, because it is not required when using the BQ28Z620EVM. The Board Offset calibration option is available in BQProduction.

  • Connect and measure a 2-A current source from 1N (–) and Pack– to calibrate without using the FETs. (TI does not recommend calibration using the FETs.)
  • Enter –2000 in the Applied Current field and select the Calibrate Current box.
  • Press the Calibrate Gas Gauge button to calibrate.
  • Deselect the Calibrate Current box after current calibration has completed.