SLVUD80 September   2025

 

  1.   1
  2.   Description
  3.   Features
  4. 1DRV8844AEVM PCB
  5. 2Evaluation Module Overview
    1. 2.1 Introduction
    2. 2.2 Kit Contents
    3. 2.3 Specifications
    4. 2.4 Device Information
  6. 3Evaluation Module Operation
    1. 3.1 Input Control
      1. 3.1.1 Brushed-DC Control
    2. 3.2 LEDs
    3. 3.3 EVM Description
    4. 3.4 Power Connections and Ground Planes
    5. 3.5 Test Points
    6. 3.6 Jumpers
    7. 3.7 Power Outputs
  7. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  8. 5Trademarks

3.4 Power Connections and Ground Planes

This EVM offers access to the Motor Voltage (VM) power rail via a terminal block (J4). A set of test clips in parallel with the terminal block allows monitoring of the input power rail.

Since the DRV8844A can be utilized with either split power supplies (+VM/VNEG) or with a single power supply (+VM), jumpers on J5 allow the LGND and VNEG nodes to be connected together when using the single power-supply implementation.

The VM must be applied according to the parameters recommended in the DRV8844A data sheet.

Attention:

NOTE: Due to high current capabilities populate all three jumper shunts on J5 from VNEG to LGND.