SLVUCD3A November   2021  – August 2022 DRV8328

 

  1.   Abstract
  2. 1Introduction
  3. 2Quick Start Guide
  4. 3Hardware and Software Overview
    1. 3.1 Hardware Connections Overview – DRV8328AEVM + LAUNCHXL-F280049C
    2. 3.2 Connection Details
    3. 3.3 LED Lights
    4. 3.4 DRV8328AEVM Configurability and Switch Functions
      1. 3.4.1 DRV8328A/B Compatibility
      2. 3.4.2 DRV8328C/D Compatibility
    5. 3.5 Interfacing DRV8328AEVM and LAUNCHXL-F280049C LaunchPad
  5. 4Hardware Setup
  6. 5Firmware and GUI Application
    1. 5.1 Connecting to the DRV8328xEVM GUI
    2. 5.2 DRV8328AEVM GUI Quick Start Guide
    3. 5.3 Using the DRV8328AEVM-GUI
  7. 6Schematics
    1. 6.1  DRV8328A/B/C/D
    2. 6.2  DRV8328C/D variant select
    3. 6.3  Status LEDs
    4. 6.4  LaunchPad Connectors and Connections
    5. 6.5  External 3.3V LDO
    6. 6.6  Power Stage and MOSFETs
    7. 6.7  Main Supply Input
    8. 6.8  Hall Sensor and Hall Power Selection
    9. 6.9  Connectors, Selectors, and Analog Control Interface
    10. 6.10 Voltage Sense and Protection
  8.   Trademarks
  9. 7Revision History

1 Introduction

The DRV8328 is a 4.5-V to 60-V triple half-bridge gate driver IC for motor drive applications. The DRV8328 provides a bootstrap architecture to drive 3 high-side and 3 low-side N-channel MOSFETs with up to 1-A peak source and 2-A peak sink current. The DRV8328 can also support up to 100% PWM duty cycle inputs with an integrated trickle charge pump. All variants are in compact QFN packages with hardware configurations and provide ultra-low sleep mode current. Additionally, variants offer a variety of optional features including a dead time pin, overcurrent level pin, driver shutoff pin, and integrated LDO capable of driving 3.3 V and 80 mA. A summary of the variants below can be seen in Table 1-1.

Table 1-1 DRV8328 device variant names and descriptions (default of EVM in bold)

Device Name

LDO Output

DT pin and VDSLVL pin

PWM Mode

DRV8328A

N/A

Available

6x PWM

DRV8328B

N/A

Available

3x PWM

DRV8328C

3.3 V

N/A

6x PWM

DRV8328D

3.3 V

N/A

3x PWM

The DRV8328AEVM can be interfaced with the TMS320F280049C microcontroller on the LAUNCHXL-F280049C LaunchPad in correspondence with the reference software to provide the algorithm to the DRV8328 to control the BLDC motor.

This document serves as a startup guide to supplement the DRV8328AEVM + LAUNCHXL-F280049C BLDC motor control demo kit. It also is intended to help engineers design, implement, and validate reference hardware and software for the LaunchPad MCU and DRV8328. For step by step details on connecting the LAUNCHXL-F280049C + DRV8328AEVM, refer to Section 4.

GUID-20220720-SS0I-KLHL-7PNZ-GTXJXJXKD6SF-low.pngFigure 1-1 DRV8328AEVM PCB Layout