Figure 2-6. Status LEDs, AREF Select, and GVDD Select
The FAULT LED will light up if the EVM senses a fault due to the following conditions:
FAULT
Lower Limit
Upper Limit
Action Taken
PVDD
6 V
100 V
PWM Input forced to 0%.
GVDD
6 V
20 V
PWM Input forced to 0%.
Over-Current
-25 A
25 A
PWM Input forced to 0%.
The Faults can be reset in the GUI software using the CLEAR FAULTS button. More details on the GUI can be
found in the Software section below.
The AREF Select jumper selects the offset for the Current Shunt Amplifiers on the EVM. The default position is
to the left on pins 1:2 which configures the CSA for Bi-directional mode (offset 1.65 V) allowing the CSA input to
sense positive or negative current. Placing the jumper to the right on pins 2:3 configures the CSA for
Unidirectional mode (offset 0 V) which allows only positive currents to be measured. This does increase the
measurement range of the CSA.
The GVDD Select jumper allows the user to use the built-in 12 V Buck Regulator to generate GVDD or input it
externally through GVDD_EXT. The default position is to the left on pins 1:2 which configures the EVM for
internal mode (GVDD from the buck regulator). Placing the jumper to the right on pins 2:3 configures the board
for external GVDD mode (GVDD supplied into GVDD_EXT test point).
2.3 EVM Hardware Quick-Start
This section describes the steps to prepare the DRV8300Dxxx-EVM for first motor spin-up. This section
assumes the default jumper positions mentioned above are used.
1.
Ensure that the isolation jumpers JP1/JP2/JP3 on the LAUNCHXL-F280049C have been removed.
2. Plug the DRV8300Dxxx-EVM onto the lower position of the LAUNCHXL-F280049C board.
3. Connect motor phase connections to their respective MOTA/MOTB/MOTC inputs on J5, making sure to
match A, B, and C.
Hardware and Software Overview
SLVUBV6 – APRIL 2020
DRV8300xxx-EVM User’s Guide
9
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