DRV8329AEVM User’s Guide

Abstract

This document is provided with the DRV8329 customer evaluation module (EVM) as a supplement to the DRV8329 data sheet (DRV8329 4.5-V to 60-V 1000/2000mA 3-phase gate driver). This User's Guide details the implementation of the EVM and shows how to set up and power the board.

Note: The DRV8329AEVM comes automatically populated with and configured for the DRV8329A. It is also compatible for the DRV8329B variants (see Section 4.4.1), but the user will need to replace the DRV8329A with the DRV8329B for compatibility.

Trademarks

All trademarks are the property of their respective owners.

1 Cautions and Warnings

Observe the following cautions and warnings as printed on the EVM board.

CAUTION:

Read the User's Guide before use.

HOT SURFACE:

Caution Hot Surface! Contact may cause burns. Do not touch. Please take the proper precautions when operating.

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.

Figure 2-1 DRV8329AEVM PCB Layout