Texas Instruments DRV8701EVM Manuale utente

User's Guide

SLVUAG3–March 2015

DRV8701EVM

This document is provided with the DRV8701 customer evaluation module (EVM) as a supplement to the

DRV8701 datasheet (SLVSCX5). The user's guide details the hardware implementation of the EVM and

how to utilize the DRV8701EVM GUI Application.

Contents

1 DRV8701EVM................................................................................................................ 2

1.1 Board Overview..................................................................................................... 2

1.2 Jumper Settings and Test Points................................................................................. 3

2 GUI Application .............................................................................................................. 4

2.1 GUI Composer Runtime ........................................................................................... 4

2.2 Hardware Setup..................................................................................................... 5

2.3 DRV8701EVM GUI ................................................................................................. 5

3 Schematic and Bill of Materials ............................................................................................ 8

3.1 Schematic............................................................................................................ 8

3.2 DRV8701EVM Bill of Materials.................................................................................... 9

List of Figures

1 Board Components.......................................................................................................... 2

2 Block Diagram................................................................................................................ 2

3 Board Jumpers and Test Points ........................................................................................... 3

4 DRV8701EVM GUI .......................................................................................................... 4

5 DRV8701EVM GUI Disconnected......................................................................................... 6

6 DRV8701EVM GUI Connected ............................................................................................ 7

7 GUI Overview ................................................................................................................ 7

8 DRV8701EVM Schematic .................................................................................................. 8

SLVUAG3–March 2015 DRV8701EVM

Emulation Control Power

USB UART MSP430G2553 DRV8701 Drive-Stage Brushed

DC Motor

DRV8701E

To Power Supply

To Motor

Power Stage

Gate Drive

Current Setting

USB -> UART

Micro-USB

MSP430G2

DRV8701EVM

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1 DRV8701EVM

1.1 Board Overview

Figure 1 illustrates a DRV8701EVM board with labels on many of the components. The board diagram is

shown in Figure 2.

Figure 1. Board Components

Figure 2. Block Diagram

2DRV8701EVM SLVUAG3–March 2015

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DRV8701EVM

1.2 Jumper Settings and Test Points

The board jumpers and test points are illustrated in Figure 3.

Figure 3. Board Jumpers and Test Points

1. General purpose push button or MSP430 reset (J2)

Set to RESET for reset functionality or PUSH for general purpose push-button functionality.

2. Control Signal Test Point Header (H1)

This header can be used to monitor the control signals from the MCU. Remove the 0-Ωresistors to

supply external control signals for the DRV8701 to this header.

3. DRV8701 gate-drive current (J1)

Move this jumper to adjust the gate-drive current strength of the DRV8701.

SLVUAG3–March 2015 DRV8701EVM

GUI Application

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2 GUI Application

Figure 4 shows the DRV8701EVM GUI.

Figure 4. DRV8701EVM GUI

2.1 GUI Composer Runtime

Step 1: Download the latest version of the GUI Composer Runtime.

system and following the installation instructions.

http://processors.wiki.ti.com/index.php/Category:GUI_Composer#GUI_Composer_Downloads

Step 2: Copy the GUI folder (DRV8701EVM_GUIvX.X) into the “C:\ti\guicomposer\webapps\”

directory.

The DRV8701EVM_GUI folder is found in the DRV8701EVM Software Files zip file (located on the

DRV8701EVM web page).

Note: If you chose a non-default installation directory in Step 1, the top level directory may differ.

You can make a shortcut to the GUI in order to start it from other file locations after this process.

NOTE: Ensure that the GUI “exe” is exactly two levels below the GUI Composer “webapps” folder.

The GUI will not start if this is incorrect. The path should be

C:\ti\guicomposer\webapps\DRV8701EVM_GUIvX.X\ DRV8701EVM_GUIvX.X.exe.

4DRV8701EVM SLVUAG3–March 2015

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GUI Application

Step 3: Install the FTDI Device Driver.

If the FTDI USB device driver does not automatically install, install it manually. The device driver setup is

found in the DRV8701EVM Software Files zip file provided, under the USB Driver folder. Run “CDM

v2.10.00 WHQL Certfified.exe” and follow the installation instructions.

Step 4: Run the GUI by starting the DRV8701EVM_GUIvX.X.exe file within the

DRV8701EVM_GUIvX.X folder from the “C:\ti\guicomposer\webapps\” directory.

2.2 Hardware Setup

Step 1: Attach the brushed DC motor to the terminal block header (H11). This header is labeled with

OUT1 and OUT2 for each motor wire.

Step 2: Attach the main power supply to the terminal block header (H10). This header is labeled with VM

and GND. The DRV8701EVM supports 5.9- to 45-V supply voltage.

Step 3: Plug the micro-USB cable into the board (supplies the microcontroller power and allows for GUI

communication) and then plug in the micro-USB cable to your computer.

2.3 DRV8701EVM GUI

The DRV8701EVM_GUI is provided with the DRV8701EVM to control a brushed DC motor and

manipulate various settings. The GUI provides functionality for adjusting the speed and direction of the

motor, adjusting the current regulation limit, observing the measured drive current, and monitoring the

device status. The DRV8701EVM_GUI operates on the GUI Composer Runtime which must be

installed prior to use (see Section 2.1).

Step 1: Attach the brushed DC motor, plug in the micro-USB cable, and enable your motor power supply

(see Section 2.2).

Step 2: Run the DRV8701EVM_GUI (DRV8701EVM_GUIvX.X.exe). The executable is found at

C:\ti\guicomposer\webapps\DRV8701EVM_GUIvX.X\ DRV8701EVM_GUIvX.X.exe. The top level

directory may be different, depending on your install settings.

SLVUAG3–March 2015 DRV8701EVM

GUI Application

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Step 3: The GUI now opens and attempts to connect to the MSP430G2553. This may take a few minutes.

If the application appears to freeze, close and then restart the GUI. Red X’s appear while the GUI is trying

to connect to the MCU (Figure 5).

Figure 5. DRV8701EVM GUI Disconnected

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GUI Application

Step 4: After the GUI connects, the screen displayed in Figure 6 appears. Verify that the Device,COM

Port Name (COM Port Number may differ), and Baud Rate match what is shown.

Figure 6. DRV8701EVM GUI Connected

Step 5: Figure 7 provides an overview of the GUI.

Figure 7. GUI Overview

SLVUAG3–March 2015 DRV8701EVM

7,8

1,2,3

5,6,

7,8

1,2,3

5,6,

1 2

GND

TP1

Micro USB-B

TP4

USB <-> UART

4.7µF

GND

MSP430 & SPY-BI-WIRE

68k

R13

33k

R28

200k

R27

GND

AVDD

0 R12

GND

0 R14

0R16

0R20

0R21

0R22

0R29

0 R1

MCU TO DRV IDRIVE SETTINGS

0.01

1µF

NT3

Net-Tie

1000pF

C17

0 R3 0 R4

0 R2

7,8

1,2,3

5,6,

7,8

1,2,3

5,6,

OUT1OUT2

GND

TP5

TP9

TP2 TP3

TP6

TP10

GND

NT4

Net-Tie

TP19

S_P

S_N

DRIVE STAGE

BUTTON-POT-LEDS

GND

Green

4.99k

R26

330

R23

GND

Green

330

R24

Red

3.3V

GND

RESET

nFAULT

STATUS

POT

3.3V_MCU

GND

NT1

Net-Tie

NT2

Net-Tie

GND GND

0 R10

3.3V3.3V_MCU

SH-J2

TP11 TP13 TP15 TP16

DRV8701

VM VCP

DEFAULT

SELECT PUSH

BUTTON FUNCT

SH-J1

SETTING

SELECT IDRIVE

DEFAULT

PINS 1-2

PINS 7-8

AVDD

0.5A FUSE 5V_USB

DVDD

SIGNAL TESTPOINTS

SRC/SNK (mA)

6.0/12.5

12.5/25

25/50

100/200

150/300

25/50

DNP

TP7 TP8

DNP

C13

DNP

C14

DNP

0.1µF

TP12

SH1SH2

GL1GL2

GH2 GH1

VREF_MCU

nFAULT_MCU

SO_MCU

SNSOUT_MCU

nSLEEP_MCU

EN/IN2_MCU

PH/IN1_MCU

VREF

SNSOUT

nSLEEP

EN/IN2

nFAULT

PH/IN1

HS OCP

OFF

330

R25

Red

3.3V

SNSOUT

DVCC

P1.0/TA0CLK/ACLK/A0/CA0

P1.1/TA0.0/UCA0RXD/UCA0SOMI/A1/CA1

P1.2/TA0.1/UCA0TXD/UCA0SIMO/A2/CA2

P1.3/ADC10CLK/A3/VREF-/VEREF-/CA3/CAOUT

P1.4/SMCLK/UCB0STE/UCA0CLK/A4/VREF+/VEREF+/CA4/TCK

P1.5/TA0.0/UCB0CLK/UCA0STE/A5/CA5/TMS

P2.0/TA1.0 8

P2.1/TA1.1 9

P2.2/TA1.1 10

P2.3/TA1.0 11

P2.4/TA1.2 12

P2.5/TA1.2 13

P1.6/TA0.1/A6/CA6/UCB0SOMI/UCB0SCL/TDI/TCLK

P1.7/A7/CA7/CAOUT/UCB0SIMO/UCB0SDA/TDO/TDI

RST/NMI/SBWTDIO

TEST/SBWTCK

P2.7/XOUT 18

P2.6/XIN/TA0.1 19

DVSS 20

U3 MSP430G2553IPW20

H10

DTR 2

RTS 3

VCCIO

RXD

6GND 7

DSR

DCD

CTS

CBUS4 12

CBUS2 13

CBUS3 14

USBDP

USBDM

3V3OUT 17

GND 18

RESET

VCC

GND 21

CBUS1 22

CBUS0 23

AGND 25

TEST

OSCI

27 OSCO 28

TXD 1

FT232RL

H11

GND

3.3V_MCU

0.1µF

C18

GND

5V_USB

3.3V_MCU

GND

H12

1 2

3 4

5 6

7 8

9 10

11 12

IDRIVE

PUSH

0.1µF

C21

4.7µF

C20

GND

SNSOUT_MCU

GND

1µF

C19

PH/IN1_MCU

nSLEEP_MCU

nFAULT_MCU

P2.2

EN/IN2_MCU

P2.0

RESET

TEST

10k

R11

VREF_MCU

LOW PASS FILTER PWM -> ANALOG V

POT

PUSH

SO_MCU

STATUS

P1.6

P1.7

TP20

P2.0

TP21 TP22 TP23

P2.2 P1.7P1.6

3.3V_MCU

1000pF

C22

GND

R18

3.3V_MCU

47k

R17

RESET

TEST

3.3V_MCU

47k

R15

SPY-BI-WIRE

470µF

TP14

50k

R19

VCP

CPH

CPL

GND 5

VREF 6

AVDD

DVDD

FAULT

SNSOUT

SO 11

IDRIVE

SLEEP

EN/IN2

14 PH/IN1

GND 16

GH1 17

SH1 18

GL1 19

SN 20

SP 21

GL2 22

SH2 23

GH2 24

PAD 25

DRV8701ERGER

GH1

SH1

GL1

GH2

SH2

GL2

S_P

S_N

10k

R31

7.5k

R30

GND

SCALE TO 3.3V

GND

1µF

C15

1µF

C16

GND

0.1µF

C12

1µF C9

AVDD

DVDD

PH/IN1

EN/IN2

nSLEEP

IDRIVE

nFAULT

SNSOUT

VREF

10k

3.3V

10µF

C10

GND

0.1µF

C11 VCP

DNP

AVDD

GND

OPTIONAL

FIXED VREF

Schematic and Bill of Materials

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3 Schematic and Bill of Materials

This section contains the EVM schematic and bill of materials (BOM).

3.1 Schematic

Figure 8 illustrates the EVM schematic.

Figure 8. DRV8701EVM Schematic

8DRV8701EVM SLVUAG3–March 2015

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Schematic and Bill of Materials

3.2 DRV8701EVM Bill of Materials

Table 1 lists the DRV8701EVM BOM.

Table 1. DRV8701EVM Bill of Materials(1)

Designator Qty Value Description Package Reference Part Number Manufacturer Alternate Part Alternate Manufacturer

Number

PCB1 1 Printed Circuit Board DRV8701EVM Any

C1, C2 2 470uF CAP, AL, 470 µF, 50 V, +/- 20%, ohm, TH D10xL20mm ECA-1HM471 Panasonic

C3, C20 2 4.7uF CAP, CERM, 4.7uF, 10V, +/-20%, X7R, 0805 0805 C2012X7R1A475M TDK

C4, C18, C21 3 0.1uF CAP, CERM, 0.1uF, 10V, +/-10%, X7R, 0603 0603 C0603C104K8RACTU Kemet

C5, C6 2 1uF CAP, CERM, 1uF, 50V, +/-10%, X7R, 0805 0805 GRM21BR71H105KA12L MuRata

C7, C8, C13, C14 4 DNP CAP, CERM, 0.01uF, 50V, +/-10%, X7R, 0603 0603 DNP DNP

C9 1 1uF CAP, CERM, 1uF, 16V, +/-10%, X7R, 0603 0603 C1608X7R1C105K TDK

C10 1 10uF CAP, CERM, 10uF, 50V, +/-10%, X7R, 1210 1210 GRM32ER71H106KA12L MuRata

C11, C12 2 0.1uF CAP, CERM, 0.1uF, 50V, +/-10%, X7R, 0603 0603 C1608X7R1H104K TDK

C15, C16, C19 3 1uF CAP, CERM, 1uF, 6.3V, +/-10%, X7R, 0603 0603 GRM188R70J105KA01D MuRata

C17 1 1000pF CAP, CERM, 1000pF, 16V, +/-10%, X7R, 0402 0402 GRM155R71C102KA01D MuRata

C22 1 1000pF CAP, CERM, 1000pF, 16V, +/-10%, X7R, 0603 0603 GRM188R71C102KA01D MuRata

D1, D4 2 Green LED, Green, SMD LED_0805 LTST-C171GKT Lite-On 150080VS75000 Wurth Elektronik

D2, D3 2 Red LED, Red, SMD LED_0805 LTST-C170KRKT Lite-On 150080SS75000 Wurth Elektronik

F1 1 1206L050/15YR Fuse, Poly Resetable PTC, 0.5A 1206 1206L050/15YR Littelfuse

FID1, FID2, FID3 3 Fiducial mark. There is nothing to buy or mount. Fiducial N/A N/A

H1, H2, H3, H4 4 Machine Screw, Round, #4-40 x 1/4, Nylon, Philips Screw NY PMS 440 0025 PH B&F Fastener Supply

panhead

H5, H6, H7, H8 4 Standoff, Hex, 0.5"L #4-40 Nylon Standoff 1902C Keystone

H9 1 Connector, micro USB Type B, Receptacle, R/A, SMD Micro USB-B ZX62-B-5PA(11) Hirose Electric Co. Ltd.

H10, H11 2 Terminal Block, 5 mm, 2x1, Tin, TH Terminal Block, 5 mm, 691 101 710 002 Wurth Elektronik eiSos

2x1, TH

H12 1 Header, 100mil, 10x1, Gold, TH 10x1 Header TSW-110-07-G-S Samtec 61301011121 Wurth Elektronik

J1 1 Header, 100mil, 6x2, Tin, TH Header, 6x2, 100mil, Tin PEC06DAAN Sullins Connector 61300621121 Wurth Elektronik

Solutions

J2 1 Header, 100mil, 3x1, Tin, TH Header, 3 PIN, 100mil, PEC03SAAN Sullins Connector 61300311121 Wurth Elektronik

Tin Solutions

J3 1 SOCKET .050" GRID SIP 4 POS R/A, TH R/A 4x1 receptacle 851-43-004-20-001000 Mill-Max

Q1, Q2, Q3, Q4 4 60V MOSFET, N-CH, 60V, 172A, SON 5x6mm SON 5x6mm CSD18532Q5B Texas Instruments

R1, R2, R3, R4, 13 0 RES, 0 ohm, 5%, 0.1W, 0603 0603 CRCW06030000Z0EA Vishay-Dale

R10, R12, R14,

R16, R18, R20,

R21, R22, R29

R5, R7, R11 3 10k RES, 10k ohm, 5%, 0.1W, 0603 0603 CRCW060310K0JNEA Vishay-Dale

R6, R8 2 DNP RES, 0 ohm, 5%, 0.1W, 0603 0603 DNP DNP

R9 1 0.01 RES, 0.01 ohm, 1%, 3W, 2512 2512 CRA2512-FZ-R010ELF Bourns

R13 1 68k RES, 68k ohm, 5%, 0.1W, 0603 0603 CRCW060368K0JNEA Vishay-Dale

R15, R17 2 47k RES, 47k ohm, 5%, 0.1W, 0603 0603 CRCW060347K0JNEA Vishay-Dale

(1) Unless otherwise noted in the Alternate PartNumber and/or Alternate Manufacturer columns, all parts may be substituted with equivalents.

SLVUAG3–March 2015 DRV8701EVM

Schematic and Bill of Materials

www.ti.com

Table 1. DRV8701EVM Bill of Materials(1) (continued)

Designator Qty Value Description Package Reference Part Number Manufacturer Alternate Part Alternate Manufacturer

Number

R19 1 50k Trimming Potentiometer, 50K, 0.5W, TH 9.53x8.89mm 3352T-1-503LF Bourns

R23, R24, R25 3 330 RES, 330 ohm, 5%, 0.1W, 0603 0603 CRCW0603330RJNEA Vishay-Dale

R26 1 4.99k RES, 4.99k ohm, 1%, 0.1W, 0603 0603 CRCW06034K99FKEA Vishay-Dale

R27 1 200k RES, 200k ohm, 5%, 0.1W, 0603 0603 CRCW0603200KJNEA Vishay-Dale

R28 1 33k RES, 33k ohm, 5%, 0.1W, 0603 0603 CRCW060333K0JNEA Vishay-Dale

R30 1 7.5k RES, 7.5 k, 5%, 0.1 W, 0603 0603 CRCW06037K50JNEA Vishay-Dale

R31 1 10k RES, 10 k, 5%, 0.1 W, 0603 0603 CRCW060310K0JNEA Vishay-Dale

S1 1 Switch, Tactile, SPST-NO, 0.05A, 12V, SMT SW, SPST 6x6 mm 4-1437565-1 TE Connectivity

SH-J1, SH-J2 2 1x2 Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA 3M SNT-100-BK-G Samtec

TP1, TP2, TP3 3 Red Test Point, Compact, Red, TH Red Compact Testpoint 5005 Keystone

TP4, TP12, TP19 3 Black Test Point, Compact, Black, TH Black Compact Testpoint 5006 Keystone

TP5, TP6, TP7, 6 White Test Point, Compact, White, TH White Compact Testpoint 5007 Keystone

TP8, TP9, TP10

TP14 1 1mm Uninsulated Shorting Plug, 10.16mm spacing, TH Shorting Plug, 10.16mm D3082-05 Harwin

spacing, TH

U1 1 H-Bridge Gate Driver, RGE0024F RGE0024F DRV8701ERGER Texas Instruments DRV8701ERGET Texas Instruments

U2 1 USB to Serial UART, SSOP28 SSOP28 FT232RL FTDI

U3 1 16 MHz Mixed Signal Microcontroller with 16 KB Flash, PW0020A MSP430G2553IPW20 Texas Instruments

512 B SRAM and 24 GPIOs, -40 to 85 degC, 20-pin SOP

(PW), Green (RoHS & no Sb/Br)

10 DRV8701EVM SLVUAG3–March 2015

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