SLUUCW4 November   2023 BQ27Z558

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Hardware Setup
      1. 2.1.1 Hardware Requirements
      2. 2.1.2 Connecting the BQ27Z558 Circuit Module to a Battery Pack
      3. 2.1.3 EVM Jumpers Description
    2. 2.2 Chemical ID
      1. 2.2.1 Chemical ID Selection Process Description
      2. 2.2.2 Hardware Requirements and Setup
      3. 2.2.3 Logging Data in bqStudio
      4. 2.2.4 GPCChem Tool
      5. 2.2.5 Programming a Chemical ID
      6. 2.2.6 Further Resources for Chemical ID Process
    3. 2.3 Calibrating Gauge Measurements
      1. 2.3.1 Voltage Calibration
      2. 2.3.2 Current Calibration
    4. 2.4 Learning Cycle and Golden Image
      1. 2.4.1 Learning Cycle Process Description
      2. 2.4.2 Data Memory Configuration
      3. 2.4.3 Learning Cycle Steps
      4. 2.4.4 Low Temperature Optimization
      5. 2.4.5 Creating the Golden Image File
      6. 2.4.6 Programming the Golden Image File
    5. 2.5 BQ27Z558-Based Circuit Module
      1. 2.5.1 Circuit Module Connections
      2. 2.5.2 Pin Description
  8. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 System Requirements
      2. 3.1.2 Software Installation
    2. 3.2 Troubleshooting Unexpected Dialog Boxes
    3. 3.3 Using bqStudio
      1. 3.3.1 Starting the Program
      2. 3.3.2 Setting Programmable BQ27Z558 Options
    4. 3.4 Gauge Communication
      1. 3.4.1 Advanced Communication in bqStudio
      2. 3.4.2 Standard Data Commands
      3. 3.4.3 Manufacturer Access Commands
      4. 3.4.4 Further Resources on Gauge Communication
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Material
  10. 5Additional Information
    1.     Trademarks

2.3.1 Voltage Calibration

Set up the EVM and other hardware as pictured in Figure 3-1. The BAT pins can be connected to a battery or a power supply, but the voltage of this source must be known to millivolt precision for accurate calibration.

Inside of bqStudio, navigate to the Calibration window. Then, as shown in Figure 3-7, enter the precise value of the voltage source used, check Calibrate Cell Voltage, and then press the Calibrate Gas Gauge button.

GUID-727405D8-0936-419C-8697-C8E217E97F23-low.png Figure 2-7 Voltage Calibration in bqStudio