7 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification, and

TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining

suitability of components for their purposes. Customers should validate and test their design

implementation to confirm system functionality.

7.1 Application Information

The DRV8844 can be used to drive one stepper motor, multiple brushed DC motors, or multiple other inductive

loads.

The outputs can be connected in parallel to increase the drive current. If connecting the outputs as in a

full-bridge configuration, any two outputs can be connected in parallel. If configured as two independent half

bridges, OUT1 and OUT2 must be paired, and OUT3 and OUT4 must be paired. This pairing is because pin

6 (SRC12) is the source for the low-side FETs of OUT1 and OUT2, and pin 9 (SRC34) is the source for the

low-side FETs of OUT3 and OUT4.

An optional sense resistor can be used to monitor the current. If using sense resistors, place the resistor

between the SRC12 or SRC34 pins and the VNEG pins.

7.2 Typical Application

OUT1

M

OUT2

OUT3

OUT4

Copyright © 2016, Texas Instruments Incorporated

Figure 7-1. Stepper Motor Connections

www.ti.com

DRV8844

SLVSBA2E – JULY 2012 – REVISED JULY 2025

Copyright © 2025 Texas Instruments Incorporated

Submit Document Feedback

13

Product Folder Links: DRV8844