SLVUDI9 October   2025

 

  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 Headers and Test Points Information
    2. 2.2 Connector Information
    3. 2.3 Indicator LEDs
    4. 2.4 Hardware Setup
  9. 3Software
    1. 3.1 Web GUI Access or Local GUI Installation
    2. 3.2 Connecting EVM to GUI
    3. 3.3 GUI Overview
    4. 3.4 DRV81545 GUI
    5. 3.5 DRV81646 GUI
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

1.1 Introduction

The DRV81545, DRV81646, and DRV81646DGQ family of devices consist of low side switches with following features:

  • DRV81545: 55V / 2A quad low side switches with integrated catch diodes, configurable current limit, configurable over-current cut-off duration and independent over-temperature and over-current protection.
  • DRV81646: 65/ 4A quad low side switches with integrated catch diodes, configurable current limit, configurable over-current cut-off duration and independent over-temperature and over-current protection. It also provides slew rate configuration and support inrush current times of up to 10ms for capacitive loads. Furthermore, the source terminals of each MOSFET are made available externally, enabling optional current sensing.
  • DRV81646DGQ: 65/ 3A quad low side switches with integrated catch diodes, configurable current limit, configurable over-current cut-off duration and independent over-temperature and over-current protection. It also provides slew rate configuration and support inrush current times of up to 10ms for capacitive loads. Furthermore, the source terminals of each MOSFET are made available externally, enabling optional current sensing.

This document is provided with the DRV81545, DRV81646, and DRV81646DGQ evaluation modules (EVM) as a supplement to the DRV81545, DRV81646, and DRV81646DGQ data sheets. This user's guide covers EVM hardware setup instructions, GUI installation, and usage instructions.