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Texas Instruments DRV8328 EVM Series User Manual Download Page 23

6.10 Voltage Sense and Protection

+5V

Voltage sense protection

PVDD

GND

GND

GND

GND

GND

100nF
50V

C41

100nF
50V

C45

100nF
50V

C46

100nF
50V

C47

D

1

+

1

G

N

D

2

D

2

+

3

D

2

-

4

V

C

C

5

D

1

-

6

TPD4S009DCKR

U4

1.00k

R82

DNP

1.00k

R84

DNP

0

R81

DNP

0

R85

DNP

GND

10pF
10V

C48

DNP

Supply Voltage Sense

Phase Voltage Sense

Virtual Center Tap Voltage Sense

VSENA

VSENB

VSENC

CTAP

VSENA

VSENB

VSENC

VSENPVDD

VSENPVDD

OUTA

OUTB

OUTC

OUTB

OUTA

OUTC

VSENC

VSENB

VSENA

VSENPVDD

VSENPVDD

OUTC

OUTB

OUTA

VSENA

VSENB

VSENC

OUTA

OUTB

OUTC

CTAP

1.00k

R78

DNP

Depopulate R65 to disconnect CTAP from LP

4.99k

R66

4.99k

R70

110k

R65

110k

R69

110k

R68

110k

R67

4.99k

R71

4.99k

R72

4.99k

R86

DNP

110k

R83

DNP

Figure 6-11. Voltage Sense and Protection schematic

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7 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision * (November 2021) to Revision A (August 2022)

Page

• Updated images to production version of DRV8328AEVM................................................................................

2

www.ti.com

Schematics

SLVUCD3A – NOVEMBER 2021 – REVISED AUGUST 2022

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DRV8328xEVM User's Guide

23

Copyright © 2022 Texas Instruments Incorporated

Summary of Contents for DRV8328 EVM Series

Page 1: ...onnections Overview DRV8328AEVM LAUNCHXL F280049C 4 3 2 Connection Details 4 3 3 LED Lights 6 3 4 DRV8328AEVM Configurability and Switch Functions 7 3 5 Interfacing DRV8328AEVM and LAUNCHXL F280049C L...

Page 2: ...iptions 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...

Page 3: ...all sensors to the appropriate locations on the 5 pin connector J10 as shown in Figure 3 2 Select AVDD or EXT on jumper J11 to choose the Hall power source voltage 3 Mate the DRV8328AEVM onto the top...

Page 4: ...3 2 shows the power supply and motor connections made to the DRV8328AEVM in order to spin a 3 phase sensored or sensorless Brushless DC motor A 4 5 V to 60 V power supply or battery is connected to t...

Page 5: ...o the LAUNCHXL F280049C to provide communication between the LaunchPad firmware and GUI as well as the correct installment of the DRV8328AEVM to the J1 J3 and J2 J4 headers of the LaunchPad www ti com...

Page 6: ...EVM has 4 status LEDs on the board By default the PVDD and AVDD LEDs will light up when the board is powered on The fault LED will light up when the driver reports a fault and the MCU LED tied to GPIO...

Page 7: ...D LED Figure 3 5 DRV8328AEVM LEDs 3 4 DRV8328AEVM Configurability and Switch Functions The DRV8328AEVM includes a variety of user selectable jumpers and unpopulated components on the PCB to choose use...

Page 8: ...Dead time potentiometer jumper resistor Jumper to enable dead time control from potentiometer and potentiometer used to set the resistance for DT pin DRV8328A B only J14 Populated DT from pot is enabl...

Page 9: ...h B External CSA output lter H DRV8328 A B or C D select D LDO enable and LDO output enable jumpers J Phase voltage feedback K Speed pot Figure 3 6 User adjustable jumpers resistors and switches on DR...

Page 10: ...ants are properly configured for their functions The DRV8328C and DRV8328D device remove the VDSLVL and dead time pins and are replaced with a DRVOFF shutdown pin and LDO AVDD The main difference betw...

Page 11: ...appropriately to receive the functionalities of the DRV8328 device These 40 pins are grouped into 4 ports in respect to the LAUNCHXL F280049C J1 to J4 Table 3 5 and Table 3 6 list the interfacing of t...

Page 12: ...r DRV8328AEVM Function LAUNCHXL F280049C Function Description 1 INHA GPIO10 PWM6A PWM used to switch Phase A High side FET 2 GND GND GND connection 3 INLA GPIO11 PWM6B PWM used to switch Phase A Low s...

Page 13: ...GPIO59 Hall sensor C from motor Note There are many resistors that are not populated for internal use only Ensure the correct resistors are populated so every has signal has only signal path If multi...

Page 14: ...UNCHXL F280049C The motor and power connectors should face to the LaunchPad s Micro USB connector 3 Connect the three phases from the brushless DC motor to the 3 pin connector J12 on DRV8328AEVM Phase...

Page 15: ...8328DEVM GUI To access the GUIs please visit https dev ti com gallery search drv8328 You must register a TI account in order to access the Gallery 5 1 Connecting to the DRV8328xEVM GUI Follow the inst...

Page 16: ...ould appear when the GUI is connected Direction Enabled PWM Frequency Hz 20000 MCU Dead Time ns 0 Acceleration Delay ms 1 duty cycle 21 Firmware and GUI Application www ti com 16 DRV8328xEVM User s Gu...

Page 17: ...ontrol the speed of the motor If you do not wish to use the potentiometer skip this step 5 Turn the potentiometer clockwise or adjust the Duty Cycle slider to control the speed of the motor from 0 to...

Page 18: ...tion Delay Sets the acceleration and deceleration ramp rate in ms per 1 duty cycle MOTOR BRAKING SETTINGS Stop Motor Stops the motor when toggled according to the braking method in the drop down menu...

Page 19: ...A 20 I NHB 19 I NHC 18 I NLA 23 I NLB 22 I NLC 21 LSS 17 SHA 6 SHB 10 SHC 14 VDSLVL 26 GND 28 PowerPAD 29 DRV8328ARUYR U1 50V 1uF C3 50V 1uF C8 50V 1uF C9 50V 10 F C7 470nF 25V C6 nSLEEP nFAULT Place...

Page 20: ...9C CSAREF nSLEEP_49C nFAULT_DFLT nSLEEP_DFLT LAUNCHXL F28069M LAUNCHXL F28027F EK TM4C123GXL and MSPM0G350x microcontrollers Figure 6 4 LaunchPad Connectors and Connections schematic 0 R26 0 R27 DNP n...

Page 21: ...V C32 DNP 330pF 100V C28 DNP 50V 0 01uF C30 DNP GND GND 0 R58 0 R61 GND External C_GS capacitors can be replaced with 0 001 R60 k ohm pull down resistors if desired GND GND GND SN 1 3 4 CSD18536KTTT Q...

Page 22: ...ad 160 ns DRV8328B or 55 ns DRV8328A R88 ohms t_Dead ns 200 10000 2 1 3 S1 nSLEEP_SW 10 0k R73 TP23 PVDD 3 3V 300mW D11 GND nSLEEP nSLEEP switch C36 R77 designed for 10us nSLEEP reset pulse MCU GPIO s...

Page 23: ...TA OUTB OUTC CTAP 1 00k R78 DNP Depopulate R65 to disconnect CTAP from LP 4 99k R66 4 99k R70 110k R65 110k R69 110k R68 110k R67 4 99k R71 4 99k R72 4 99k R86 DNP 110k R83 DNP Figure 6 11 Voltage Sen...

Page 24: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 25: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 26: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 27: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 28: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 29: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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