SLOU571 June   2024

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Setup and Mode Select
      1. 2.1.1 Jumpers
      2. 2.1.2 DRV8421A: Brushed-DC Setup
      3. 2.1.3 DRV8421A: Stepper Setup
      4. 2.1.4 DRV8421B: Brushed-DC Setup
      5. 2.1.5 DRV8421B: Stepper Setup
      6. 2.1.6 EVM Control
        1. 2.1.6.1 DRV8421A: Brushed-DC Motor Control
        2. 2.1.6.2 DRV8421A: Stepper Motor Control
        3. 2.1.6.3 DRV8421B: Brushed-DC Motor Control
        4. 2.1.6.4 DRV8421B: Stepper Motor Control
      7. 2.1.7 Parallel Mode
        1. 2.1.7.1 DRV8421A: Parallel Mode
        2. 2.1.7.2 DRV8421B: Parallel Mode
      8. 2.1.8 Removing and Installing Supported Motor Drivers
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB (Top-Assembly View)
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks

2.1.7.1 DRV8421A: Parallel Mode

The two H-bridges can be used in parallel to deliver twice the current to a single motor. To enter parallel mode in DRV8421A, the 4-wire version, the following actions must be taken:

  1. IN1 and IN3 must be tied together
  2. IN2 and IN4 must be tied together
  3. OUT1 and OUT3 must be tied together
  4. OUT2 and OUT4 must be tied together

After making the connections for parallel mode, all setup and controls are the same as mentioned in previous sections.

Note: The DRV8421AEVM is not designed for parallel mode operation. All connections, controls, and operations in parallel mode with the A-Variant must be done externally.