SLVUCF5A March   2022  – August 2022 DRV8329

 

  1.   Abstract
  2.   Trademarks
  3. 1Cautions and Warnings
  4. 2Introduction
  5. 3Quick Start Guide
  6. 4Hardware and Software Overview
    1. 4.1 Hardware Connections Overview – DRV8329AEVM + LAUNCHXL-F280049C
    2. 4.2 Connection Details
    3. 4.3 LED Lights
    4. 4.4 DRV8329AEVM Configurability
      1. 4.4.1 DRV8329A/B Compatibility
    5. 4.5 Interfacing DRV8329AEVM and LAUNCHXL-F280049C LaunchPad
  7. 5Hardware Setup
  8. 6Firmware and GUI Application
    1. 6.1 Connecting to the DRV8329AEVM-GUI
    2. 6.2 DRV8329x EVM GUI Quick Start Guide
    3. 6.3 Using the DRV8329x EVM GUI
  9. 7Schematics
    1. 7.1 DRV8329A/B
    2. 7.2 Status LEDs
    3. 7.3 LaunchPad Connectors and Connections
    4. 7.4 Power Stage and MOSFETs
    5. 7.5 Main Supply Input
    6. 7.6 Hall Sensor and Hall Power selection
    7. 7.7 Connectors, Selectors, and Analog Control Interface
    8. 7.8 Dead Time and CSA Gain Selection
    9. 7.9 Voltage Sense and Protection
  10. 8Revision History

2 Introduction

The DRV8329 is a 4.5-V to 60-V triple half-bridge gate driver IC for motor drive applications. It 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 and can support up to 100% PWM duty cycle inputs with a 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 2-1.

Table 2-1 DRV8329 device variant names and descriptions (default of EVM in bold)

Device Name

LDO Output

DRVOFF pin

DT pin and VDSLVL pin

PWM_MODE

DRV8329A

3.3 V

Yes

Available

6x

DRV8329B

3.3 V

Yes

Available

3x

The DRV8329AEVM can be interfaced with the TMS320F280049C microcontroller on the LAUNCHXL-F280049C LaunchPad in correspondence with the reference software to provide the algorithm to the DRV8329 to control the BLDC motor.

This document serves as a startup guide to supplement the DRV8329AEVM + 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 DRV8329. For step by step details on connecting the LAUNCHXL-F280049C + DRV8329AEVM, refer to Hardware Setup.

GUID-20220214-SS0I-FZNB-RNVK-M7923SN4MNRH-low.pngFigure 2-1 DRV8329AEVM PCB Layout