SLOU538 June   2020

 

  1.   DRV8428P EVM GUI User's Guide
    1.     Trademarks
    2. 1 Overview
    3. 2 Hardware and Software Setup
    4. 3 GUI Application
      1. 3.1 Installation
      2. 3.2 Getting Started with DRV8428P EVM GUI
      3. 3.3 Use the DRV8428P EVM GUI
        1. 3.3.1 Motor Control Page
          1. 3.3.1.1 Control Modes
            1. 3.3.1.1.1 PWM Mode
            2. 3.3.1.1.2 Step Mode
        2. 3.3.2 Decay Mode and TOFF setting
        3. 3.3.3 Use the Side-Bar Menu
        4. 3.3.4 Menu Bar Options
          1. 3.3.4.1 File Menu
          2. 3.3.4.2 Options Menu
          3. 3.3.4.3 Tools Menu
          4. 3.3.4.4 Help Menu

3.3.2 Decay Mode and TOFF setting

Decay refers to how the driving currents recirculate in H-bridge FETs during the off time. Using the GUI, users can configure the decay mode and TOFF for each bridge.

DRV8428xEVM_decay_Toff_setting.pngFigure 8. DRV8428P EVM Decay Mode and TOFF setting

Decay mode and appropriate TOFF values can be configured in this pulldown menu. For more information about the different decay modes, refer to the DRV8428E Motor Driver datasheet.