SLUUD32A June   2024  – April 2025 BQ41Z50

 

  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
  6. 2BQ41Z50EVM 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 Connectors
        1. 2.3.1.1 Primary Input and Output Connectors
        2. 2.3.1.2 Jumper Placements
        3. 2.3.1.3 Battery Connector
        4. 2.3.1.4 Load/Charger Connector
        5. 2.3.1.5 GPIO Connector
    4. 2.4 Update Firmware
  7. 3Hardware
    1. 3.1 BQ41Z50 Production Calibration Guide
  8. 4Software
    1. 4.1 Battery Management Studio
      1. 4.1.1 Registers Screen
      2. 4.1.2 Setting Programmable BQ41Z50 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 Programming 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. 5IT-DZT Guide To Gauging
    1. 5.1 What is Dynamic Z-Track™ (IT-DZT)?
    2. 5.2 Overview of IT-DZT
    3. 5.3 Critical IT-DZT Parameters
    4. 5.4 IT-DZT Chemistry Details
    5. 5.5 Implementation of Dynamic Load (IT-DZT)
    6. 5.6 Results
  10. 6Hardware Design Files
    1. 6.1 BQ41Z50EVM Circuit Module Schematic
      1. 6.1.1 LED Control
    2. 6.2 Circuit Module Physical Layouts
      1. 6.2.1 Board Layout
      2. 6.2.2 Schematic
    3. 6.3 Bill of Materials
  11. 7Additional Information
    1. 7.1 Trademarks
  12. 8Related Documentation
  13. 9Revision History

4.1.3.1 Voltage Calibration

  • Measure the voltage from Cell 1 to 1N and enter this value in the Applied Cell 1 Voltage field and select the Calibrate Voltage box.
  • Measure the voltage from Bat+ to Bat– and enter this value in the Applied Battery Voltage field and select the Calibrate Battery Voltage box.
  • Measure the voltage from Pack+ to Pack– and enter this value in the Applied Pack Voltage field and select the Calibrate Pack Voltage box. If the voltage is not present, then turn the charge and discharge FETs on by sending the ManufacturerAccess() FET Control Command (0x0022). For instructions to accomplish this, please refer to Section 4.1.6 Advanced Comm SMB Screen.
  • Press the Calibrate Gas Gauge button to calibrate the voltage measurement system.
  • Deselect the Calibrate Voltage boxes after voltage calibration has completed.