Introduction; Overview; Purpose And Scope; Block Diagram - Texas Instruments BOOSTXL-DRV8323Rx User Manual

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Introduction

1.1

Overview

The DRV8323Rx is a gate driver IC for three phase motor drive applications. It provides three high-
accuracy trimmed and temperature compensated half bridge drivers, each capable of driving a high-side
and low-side N-type MOSFET.
Both SPI and hardware interface variants provide detailed fault reporting and flexible parameter settings
such as current control options for slew rate control of the gate drivers and various protection features.
Along with the hardware of DRV8323Rx, the MSP430F5529 microcontroller has loaded reference software
that provides the necessary gating pulses to DRV8323Rx to control the BLDC motors.
1.2

Purpose and Scope

This document is designed to be used as a startup guide and to supplement the DRV832X +
MSP430F5529 BLDC motor control demo code kit. This document is intended for the engineers involved
in the design, implementation, and validation of DRV832X + MSP430F5529 reference software.
The scope of this document is to provide the user with a guide to evaluate the DRV8323Rx device with an
MSP430F5529 LaunchPad™ development kit. This document covers the hardware connections required
between DRV8323Rx and the LaunchPad development kit. When the HW connections are complete, the
user is required to download the necessary tools and SW to spin a motor. For step-by-step details to instal
Code Composer Studio™ (CCS) software, import the DRV832xx project into CCS, build the project, debug
the project and spin the motor, refer to
This reference SW comprises trapezoidal sensored and sensorless algorithms for BLDC motor control.
For additional information on these algorithms, refer to
and DRV832XX EVM Sensorless Software User's Guide
SLVUB01C – February 2017 – Revised March 2018
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DRV832x
PWM
Three-Phase
SPI or H/W
Smart Gate Driver
nFAULT
Protection
Current Sense
3x Sense Amplifiers
600 mA
Buck Regulator
Copyright © 2017, Texas Instruments Incorporated
Figure 1. Block Diagram
Section 3.
Copyright © 2017–2018, Texas Instruments Incorporated
6 to 60 V
Gate Drive
M
Current
Sense
DRV832XX EVM Sensored Software User's Guide
BOOSTXL-DRV8323Rx EVM User's Guide
Introduction
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