Texas Instruments BOOSTXL-DRV8320RS User manual

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BOOSTXL-DRV8320RS EVM User’s Guide
User's Guide
SPRUIJ3A–November 2018–Revised August 2019
BOOSTXL-DRV8320RS EVM User’s Guide
This document is provided with the BOOSTXL-DRV8320RS customer evaluation module (EVM) as a
supplement to the DRV832x 6 to 60-V Three-Phase Smart Gate Driver Data Sheet. This user's guide
details the hardware implementation of the EVM and introduces accompanying software.
NOTE: Follow the general ESD precautionary measures when operating this EVM.
Contents
1 Introduction ................................................................................................................... 2
1.1 Overview............................................................................................................. 2
1.2 Purpose and Scope ................................................................................................ 2
2 Hardware and Software Overview......................................................................................... 3
2.1 Hardware Connections Overview – DRV8320RS + TMS320F28004xC .................................... 3
2.2 Connection Details.................................................................................................. 4
2.3 LED Lights........................................................................................................... 7
2.4 Interfacing DRV8320RS and TMS320F280049C LaunchPad ............................................... 8
3 Getting Started.............................................................................................................. 10
3.1 Install the MotorControl SDK .................................................................................... 10
3.2 Hardware Setup ................................................................................................... 10
4 References.................................................................................................................. 10
List of Figures
1 Block Diagram................................................................................................................ 2
2 Hardware Connections Overview.......................................................................................... 3
3 Connections .................................................................................................................. 4
4 Jumper Connections 1...................................................................................................... 5
5 Micro-USB Connection...................................................................................................... 6
6 Switches and LED Functions............................................................................................... 7
List of Tables
1 J1 BOOSTXL-DRV8320RS Pin Connections............................................................................ 8
2 J2 BOOSTXL-DRV8320RS Pin Connections............................................................................ 8
3 J3 BOOSTXL-DRV8320RS Pin Connections............................................................................ 9
4 J4 BOOSTXL-DRV8320RS Pin Connections............................................................................ 9
5 Configurations Table....................................................................................................... 10
Trademarks
C2000, Piccolo, InstaSPIN, BoosterPack are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

6 to 60 V
DRV832x
Three-Phase
Smart Gate Driver
PWM
Gate Drive
Current
Sense
Current Sense
N-Channel
MOSFETs
nFAULT
M
SPI or H/W
600 mA
Protection
Controller
Buck Regulator
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1 Introduction
1.1 Overview
The DRV8320RS 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.
The DRV8320RS uses SPI to 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.
BOOSTXL-DRV8320RS has been designed to work with the LAUNCHXL-F280049C LaunchPad. The
C2000™ Piccolo™ TMS320F280049C has integrated programmable gain amplifiers (PGA), which allow
for a low cost method of current sensing. This completely eliminates the need for external op-amps.
A full suite of software for evaluation of the DRV8320RS, F28004xC and InstaSPIN™-FOC can be found
in the C2000Ware MotorControl SDK.
Figure 1. Block Diagram
1.2 Purpose and Scope
This document is designed to be used as a startup guide and to supplement the MotorControl SDK. This
document is intended for the engineers involved in the design, implementation, and validation of the
DRV832xx gate driver with a TMS320F28004xC device.
The scope of this document is to provide the user with a guide to evaluate the DRV8320RS device with a
LAUNCHXL-F280049C development kit. This document covers the hardware connections required
between DRV8320RS and the LaunchPad development kit. When the HW connections are complete, the
user is required to download the MotorControl SDK to spin a motor.

3x CSD88584Q5DC
TPD4S009DCKRG4
DRV8320RS
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BOOSTXL-DRV8320RS EVM User’s Guide
2 Hardware and Software Overview
2.1 Hardware Connections Overview – DRV8320RS + TMS320F28004xC
Figure 2 shows the major blocks of the hardware where the BOOSTXL-DRV8320RS BoosterPack™ plug-
in module is mounted on the LAUNCHXL-F280049C LaunchPad development kit. The BOOSTXL-
DRV8320RS is designed for an input supply from 6 to 54 V and up to 15-A drive current. Three half h-
bridges capable of driving a three-phase BLDC motor using sensorless field oriented or vector control.
The 3.3-V supply to the LaunchPad is derived by the LMR16006XDDCR buck converter integrated in the
DRV8320RS.
Figure 2. Hardware Connections Overview

MotorPower
Ground
Gate Headers
High-side Source
Headers
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2.2 Connection Details
Figure 3 shows the power connector and motor phase connector. A supply voltage ranging from 6 to 54 V
from a battery or a DC voltage source is connected to the voltage supply pins. Three phases of the BLDC
motor are connected to the three-phase motor socket provided on the BOOSTXL-DRV8320RS.
Figure 3. Connections

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Figure 4 and show the connections required for the proper functioning of the software. A detailed
description of each pin's function can be found in Table 1.
Figure 4. Jumper Connections 1

Micro-USB
Connector
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Figure 5 shows the LAUNCHXL-F2800049C. Only one cable is required to provide communication and
power to the LaunchPad's onboard XDS110 emulator. Because the DRV8320RS provides power to the
F280049C it is important to configure the jumpers as described in Table 5 to avoid shunting separate
sources together.
Figure 5. Micro-USB Connection

3.3 V Power Good
Indicator
Fault Indicator
User
Controlled
Indicator
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2.3 LED Lights
Two LEDs have been provided to indicate different statuses of the motor controller.
Figure 6. Switches and LED Functions
"FLT" and "LED" LEDs — The fault(FLT) LED is controlled by the DRV8320's "Fault" pin. The fault pin is
driven by the DRV8320X to indicate a wide variety of warning and error conditions. Descriptions of
these can be found in the DRV832x 6 to 60-V Three-Phase Smart Gate Driver Data Sheet. The
LED marked "LED" is available for the user to control and is active low.

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2.4 Interfacing DRV8320RS and TMS320F280049C LaunchPad
The DRV8320RS device has 40 pins with different functions. These pins are interfaced with the
LAUNCHXL-F280049C, which is mapped appropriately to receive the functionality of the BoosterPack
plug-in module. These 40 pins are grouped into 4 ports. Table 1 lists the interfacing of these ports with the
TMS320F280049C device.
Table 1. J1 BOOSTXL-DRV8320RS Pin Connections
BOOSTXL-DRV8320RS
Function LAUNCHXL-F280049 Site1 Function LAUNCHXL-F280049 Site2 Function Description
J1 Header
1 3.3 V 3.3 V 3.3 V 3.3 V LaunchPad supply
2 PGA Ground PGA1/3/5_GND PGA2/6/6_ Current sense ground
3 Enable GPIO13 GPIO28 Logic low to enter a low-
power sleep mode
4 nFault GPIO40 GPIO29 Pulled logic low during a
fault condition
5 —
6 —
7 SPI Clock GPIO56 (SPI CLK) GPIO22 Clock source for SPI
8 —
9 —
10 —
Table 2. J2 BOOSTXL-DRV8320RS Pin Connections
J2 Header BOOSTXL-DRV8320RS Function LAUNCHXL-F280049 Site1 Function LAUNCHXL-F280049 Site2 Function Description
20 Ground Ground Ground Device Ground
19 nSCS GPIO57 GPIO27 Active low enables serial
interface communication
18 —
17 —
16 —
15 SDI GPIO16 (SPI MOSI) GPIO24 Data input to DRV832xx
14 SDO GPIO17 (SPI MISO) GPIO31 Data output from
DRV832xx
13 —
12 —
11 —

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Table 3. J3 BOOSTXL-DRV8320RS Pin Connections
J3 Header BOOSTXL-DRV8320RS Function LAUNCHXL-F280049 Site1 Function LAUNCHXL-F280049 Site2 Function Description
21 —
22 Ground Ground Ground Device Ground
23 Voltage sense A ADCINA5 ADCINA6 Sensing A phase voltage
24 Voltage sense B ADCINB0 ADCINA2 Sensing B phase voltage
25 Voltage sense C ADCINC2 ADCINC14 Sensing C phase voltage
26 Voltage sense VM ADCINB1 ADCINC1 Sensing VM voltage
27 Current sense A PGA1_IN PGA4_IN Sensing A phase current
28 Current sense B PGA3_IN PGA6_IN Sensing B phase current
29 Current sense C PGA5_IN PGA2_IN Sensing C phase current
30 DAC bias input DACB_OUT DACA_OUT Voltage Bias for phase
current measurement
Table 4. J4 BOOSTXL-DRV8320RS Pin Connections
J4 Header BOOSTXL-DRV8320RS Function LAUNCHXL-F280049 Site1 Function LAUNCHXL-F280049 Site2 Function Description
40 INHA GPIO10 GPIO0 High-side gate driver
control input.
39 INLA GPIO11 GPIO1 Low-side gate driver
control input.
38 INHB GPIO8 GPIO6 High-side gate driver
control input.
37 INLB GPIO9 GPIO7 Low-side gate driver
control input.
36 INHC GPIO4 GPIO2 High-side gate driver
control input.
35 INLC GPIO5 GPIO3 Low-side gate driver
control input.
34 —
33 —
32 —
31 LED GPIO25 GPIO32 User-controlled LED

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3 Getting Started
3.1 Install the MotorControl SDK
The MotorControl SDK contains an entire suite of example software and labs written for the LAUNCHXL-
F280049C + BOOSTXL-DRV8320RS. It features InstaSPIN-FOC which is a FOC solution that can
identify, tune and control your motor in minutes.
3.2 Hardware Setup
The hardware required to run the motor controller is a LAUNCHXL-F280049C LaunchPad development
kit, the BOOSTXL-DRV8320RS BoosterPack plug-in module, a Micro-USB cable, and a power supply with
a DC output from 8 to 54 V. Follow these steps to start up the BoosterPack plug-in module:
Step 1. Dock the BoosterPack to the LaunchPad. Site 1 and Site 2 of the LaunchPad are supported
by software.
NOTE: To determine orientation of the BoosterPack ensure that the power and ground pins line up
with the LaunchPad.
NOTE: Depending on which site is used the user needs to ensure that the correct jumpers are
populated. Table 5 details these configurations.
Table 5. Configurations Table
Site 1 Site 2 Both Site 1 and Site 2
J1
J2 Remove Remove Remove
J3
j8 (2 jumpers) Remove Populate Remove
Step 2. Connect the three phases from the brushless DC motor to the J5 connector on the
BOOSTXL-DRV8320RS BoosterPack plug-in module. Phase A, B, and C are labeled in white
silkscreen on the PCB top layer.
Step 3. Connect the DC power supply to header J1.
NOTE: Observe the correct polarity of +VM and GND connections on the BOOSTXL-DRV8320RS
BoosterPack connection J1
Step 4. Connect a Micro-USB cable to the LaunchPad development kit and computer.
Step 5. Turn on the power supply and power up the PCB.
4 References
•DRV832x 6 to 60-V Three-Phase Smart Gate Driver Data Sheet
•TMS320F28004x Piccolo™ Microcontrollers Data Manual
•TMS320F28004x Piccolo Microcontrollers Technical Reference Manual
•C2000 Piccolo F28004x Series LaunchPad Evaluation Kit
• Hereby, DLP Design, Inc. declares that this evaluation kit is in compliance with the essential
requirements and other relevant provisions of EN 61326-1:2013. The full text of the EU declaration of
conformity is available at the following internet address: www.ti.com/lit/pdf/tipl12

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Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (November 2018) to A Revision ................................................................................................ Page
• Updates were made in Section 2.2..................................................................................................... 4

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