Hardware Overview
5
SLVUBF8 – June 2018
Copyright © 2018, Texas Instruments Incorporated
DRV8847x EVM User's Guide
2.4
Jumpers
The DRV8847EVM and DRV8847SEVM boards have three jumpers, J6, J7 and J8. The J6 and J7
jumpers set the output current. The parallel resistors provide twice the current for each H-bridge when the
shunt connectors are installed (see
The J8 jumper is used when the device is set in parallel mode. In this mode, the DRV8847EVM or
DRV8847SEVM can drive a brushed motor up to 2 A of current by installing a shunt across the J8 jumper.
The short test points, OUT1-OUT3 and OUT2-OUT4, must be paired together respectively for parallel
mode.
2.5
Motor Outputs
The J3 and J4 connectors are available as shown in
to connect the desired output load. The
outputs change depending on the type of load to be driven (either stepper, BDCs, or solenoids).
2.6
Operation of the EVM
Do these steps to operate the EVM:
Step 1.
Download and install the drivers and GUI from the tool folder for the
or
. Refer to the
DRV8847EVM and DRV8847SEVM Software User's Guide
for
detailed steps.
Step 2.
Connect the wires of the load to the AOUT1, AOUT2, BOUT1, and BOUT2 terminals as
required.
Step 3.
Connect the VM power supply but do not apply power at this step.
Step 4.
Connect the USB cable between the PC and the EVM.
Step 5.
Apply 12 V to the VM and GND connections.
Step 6.
Open the GUI by from the desktop or from the start menu to start the GUI.
Step 7.
Select the device variant to be used in the launch page.
Step 8.
Refer
DRV8847EVM and DRV8847SEVM Software User's Guide
for detailed GUI
configuration of the modes according to the driving load.
