DRV8323RS Hardware User Guide

1. Hardware Required

  • LP-MSPM0G3507 - MSPM0G3507 Launchpad

  • BOOSTXL-DRV8323RS - BOOSTXL-DRV8323RS is a 15A, 3-phase brushless DC drive stage based on the DRV8323RH gate driver and CSD88599Q5DC NexFET™ power block

  • DC Power supply that supports the required voltage and current

  • Brushless-DC Motor

  • Micro-USB cable

2. Hardware Setup

  1. Remove the PA26 jumper J18 in the LP-MSPM0G3507 as shown below.

    J3 header removed in LP-MSPM0G3507

    Fig. 24 J3 header removed in LP-MSPM0G3507

  2. Connect the LP-MSPM0G3507 to the BOOSTXL-DRV8323RS in one of two ways:

    • Plug the connectors J3 and J4 of the BOOSTXL-DRV8323RS to the top of the connectors J3/J4 of the LP-MSPM0G3507.

    • If using the jumper wires, connect as shown in the table below. Refer to the schematic of J3 and J4 connector pinout on BOOSTXL-DRV8323RS for the location of the signals.

      BOOSTXL-DRV8323RS J3 and J4 connector pinout

      Fig. 25 BOOSTXL-DRV8323RS J3 and J4 connector pinout

      Connection

      MSPM0G3507

      BOOSTXL-DRV8323RS

      Phase A HS input

      PB4

      INHA

      Phase A LS input

      PB1

      INLA

      Phase B HS input

      PA28

      INHB

      Phase B LS input

      PA31

      INLB

      Phase C HS input

      PB20

      INHC

      Phase C LS input

      PB13

      INLC

      Serial clock input

      PB9

      SCLK

      Serial data input

      PB8

      SDI

      Serial data output

      PB7

      SDO

      Chip Select

      PB0

      nSCS

      Bus voltage input

      PA25

      VSENVM

      Phase A current input

      PA17

      ISENA

      Phase B current input

      PA24

      ISENB

      Phase C current input

      PA18

      ISENC

      Fault Input

      PA27

      nFAULT

      DRV Enable output

      PA26

      ENABLE

      Common Ground

      GND

      GND

  3. For using the IPD startup feature user needs to additionally make the below connections :

    Connection

    MSPM0G3507

    BOOSTXL-DRV8323RS

    COMP A input

    PA14

    ISENA

    COMP B input

    PB26

    ISENB

    COMP C input

    PB21

    ISENC

  4. Connect the 3 phases of the BLDC motor to A/B/C of connector J5 on the BOOSTXL-DRV8323RS.

  5. Connect the positive and negative of the power supply to VM and GND of the power connector terminal block to the

  6. Set the power supply to to a motor voltage between 4.5V to 34V within the DRV8323RS specifications and a 5-A current limit. Turn on the power supply. The green VM LED on the BOOSTXL-DRV8323RS should turn on.

  7. Connect a Micro-USB cable from the LP-MSPM0G3507 to the PC.

  8. Once all steps are completed you can start to run the motor. Please refer to Software User Guide or GUI User Guide.