Texas Instruments DRV8873 EVM Series, User Manual, Page: 2 / 14

Introduction
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2 SLVUB68A – October 2017 – Revised August 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
DRV8873xEVM User’s Guide
1 Introduction
1.1 Overview
The DRV8873 device is an integrated driver IC for driving a brushed DC motor in automotive applications.
Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors
bi-directionally with up to 10-A peak current. The DRV8873 operates from a single power supply and
supports a wide input supply range from 4.5 V to 38 V.
Figure 1. DRV8873S-Q1EVM shown (Actual Board May differ)
A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-
bridge control is available to drive two solenoid loads.
A current mirror allows the controller to monitor the load current. This mirror approximates the current
through the high-side FETs, and does not require a high-power resistor for sensing the current.
A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of
the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump
faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault
conditions are indicated on an nFAULT pin and through the SPI registers.
1.2 Purpose and Scope
This document is designed to be used as a startup guide and to supplement the DRV8873x-Q1EVM. This
document is intended for the engineers involved in the design, implementation, and validation of DRV8873
device. The scope of this document is to provide the user with a guide to evaluate the DRV8873 device
using GUI control. This document covers the hardware (HW) connections required between the
DRV8873xEVM and the GUI. When the HW connections are complete, the user is required to download
and open the GUI to control the DRV8873 device.