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DRV8848 EVM Overview
The DRV8848 customer EVM is a platform revolving around the DRV8848, a low voltage dual H-bridge
driver and highly-configurable power stage. This device has been optimized to control one or two brushed
DC motors, or a stepper motor. The DRV8848 can also be configured to drive a single brushed DC motor
using both output stages in parallel mode to increase the drive current.
The EVM houses an MSP430 microcontroller and an USB interface chip. The USB chip allows for serial
communications from a PC where a Microsoft® Windows® application is used to schedule serial
commands. These commands can be used to control each of the device's signals, and drive the motors at
the desired rate.
The microcontroller firmware outputs the control signals and PWM signals to move the motor. The
firmware also monitors the nFAULT signal to alert the GUI that a FAULT has occurred. This document
details the operation of the EVM, as well as the hardware reconfigurability of the evaluation module.
1.1
Connectors
The DRV8848EVM offers access to the VM (motor voltage) power rail via a terminal block (J1). A set of
test clips in parallel with the terminal block allows for the monitoring of the input power rail. The VM must
be applied according to the recommended parameters in the
sheet.
NOTE: VDD for the microcontroller is derived from the micro USB connector.
SLLU210C – October 2014 – Revised September 2019
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Figure 1. DRV8848 EVM
Figure 2. Connections
Copyright © 2014–2019, Texas Instruments Incorporated
DRV8848 EVM Overview
DRV8848 Dual H-Bridge Motor Driver data
DRV8848EVM Hardware and GUI User Guide
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