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Texas Instruments DRV82 2-EVM Series User Manual Download Page 32

9 Evaluation Hardware Overview

CAUTION

Hot surfaces on the EVM include the DRV824x-Q1 or DRV814x-Q1 device (U1) and the area 
surrounding it.

When operating the EVM at the maximum device specifications and a high ambient 
temperature, external cooling fans may be required to minimize potential fire hazard, 
personal injury, or both.

Evaluation Hardware Overview

www.ti.com

32

DRV84x2_DRV82x2_DRV89x2-EVM User's Guide

SLOU558 – AUGUST 2022

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Copyright © 2022 Texas Instruments Incorporated

Summary of Contents for DRV82 2-EVM Series

Page 1: ...a The Silk screen says OUT3 it should say OUT4 The Silk screen says OUT4 it should say OUT3 Table of Contents 1 Introduction 2 1 1 Overview 2 1 2 Purpose and Scope 2 2 Jumpers Table and Setup 3 3 Hard...

Page 2: ...one for each half bridge high side FET A low power sleep mode is provided to achieve ultralow quiescent current Internal protection features are provided for supply under voltage lockout UVLO charge p...

Page 3: ...on with the EZFET Use the following Figure 2 1 to populate the following jumpers for all variants Figure 2 1 Jumper Population Guideline Table 2 1 Jumper Identification Table Description of jumper fun...

Page 4: ...ect for dual H Bridge Mode Connect for single H Bridge mode connects VREFs Pin 33 and Pin 34 together J26 DNP DNP Disconnect for single H Bridge Mode Disconnects CREF2 from MSP430 in single H Bridge m...

Page 5: ...V84X2EVM Current Regulation Jumpers 3D View www ti com Jumpers Table and Setup SLOU558 AUGUST 2022 Submit Document Feedback DRV84x2_DRV82x2_DRV89x2 EVM User s Guide 5 Copyright 2022 Texas Instruments...

Page 6: ...umpers Schematic Figure 2 4 DRV89x2EVM Current Regulation Jumpers 3D View Jumpers Table and Setup www ti com 6 DRV84x2_DRV82x2_DRV89x2 EVM User s Guide SLOU558 AUGUST 2022 Submit Document Feedback Cop...

Page 7: ...89x2EVM Current Regulation Jumpers Schematic www ti com Jumpers Table and Setup SLOU558 AUGUST 2022 Submit Document Feedback DRV84x2_DRV82x2_DRV89x2 EVM User s Guide 7 Copyright 2022 Texas Instruments...

Page 8: ...V82x2EVM Current Regulation Jumpers 3D View Jumpers Table and Setup www ti com 8 DRV84x2_DRV82x2_DRV89x2 EVM User s Guide SLOU558 AUGUST 2022 Submit Document Feedback Copyright 2022 Texas Instruments...

Page 9: ...hardware files and schematics Once you have verified that all shunts and jumpers are in the correct location you can move on to hardware setup www ti com Jumpers Table and Setup SLOU558 AUGUST 2022 S...

Page 10: ...A phase can be connected to J14 and B phase to J13 If using the dual half bridge driver or the half bridge driver use terminals J13 and J14 as indicated to connect in the desired setup 3 Figure 3 1 E...

Page 11: ...ys OUT3 it should say OUT4 The Silk screen says OUT4 it should say OUT3 4 Observing correct polarity connect the lab power supply to the large screw terminal block J12 CAUTION CAUTION A reverse polari...

Page 12: ...M power before the power supply capacitors are fully discharged a proper firmware reset can fail to happen A proper reset is indicated by the STATUS LED D6 blinking at a rate of approximately 1 Hz If...

Page 13: ...n credentials prior to launching the app while running from a web browser a Hyperlink for running app in Chrome Web GUI 2 From the screen referenced in Figure 4 1 Device selection screen within GUI Fi...

Page 14: ...Windows system Control Panel The baud rate must be set to 9600 recommended If no MSP COMxx ports were enumerated and displayed in the Windows Device Manager ensure proper power sequencing was followe...

Page 15: ...are reset using the push button S1 with jumper J23 in 1 2 RST position Attempt to connect the GUI app with the EVM again 5 At this point the user may set up the EVM for device evaluation Driver Contro...

Page 16: ...tab in the Driver Control page Set the Motor Driver to Awake and Driver Outputs to Enabled With default settings click on the Start Input based STEP button The motor should spin in one direction Chan...

Page 17: ...e Registers Register values can be modified directly either using the Field View panel or by changing the hexadecimal data displayed in the Value column Figure 5 2 Register Map 3 All Registers setting...

Page 18: ...equired can be significantly lower than run current This feature will save power as well as avoid unnecessary heating of the motor The default setting for the Stand Still Current is 50 of the run curr...

Page 19: ...ed Set the Target Speed accordingly to avoid a motor stall Figure 5 6 Step Edge d Control Mode This is a GUI app feature which allows selection between Speed mode and Step mode In speed mode the motor...

Page 20: ...itch While enabled all stall detection settings and features are revealed by the GUI Stall detection can be used in either learn mode which automatically learns the stall threshold value using a learn...

Page 21: ...to complete Stall Threshold learning sequence and Relearn Stall Threshold push button to appear Then manually stall the motor by safely using a pair of pliers with soft jaws or if you are using a line...

Page 22: ...rostepping indexer When custom microstepping is enabled the integrated microstepping settings are ignored by the driver regardless of its setting A drop down menu allows the user to choose between Use...

Page 23: ...of the motor especially with low microstepping settings such as 1 4 1 2 and Full step Use the following procedure to demonstrate this feature Start with the default settings of the GUI in Speed Contro...

Page 24: ...able Start the motor using the Start Input based STEP push button iii Switch to the AUTO TORQUE tab of the GUI Enable Auto Torque mode using the slide switch iv Next while the motor is running unloade...

Page 25: ...of time during transient higher load torque Figure 5 16 Auto Torque Control Panel vi Now observe the Auto Torque Count values with no load Use the range of values observed to set the Auto Torque Count...

Page 26: ...evice data sheet The GUI also allows operating the device in this mode The GUI comes up with SPI controlled operation by default To operate the device with GPIO control select H W in the Interface Mod...

Page 27: ...yed in the HALF BRIDGE 1 display window Next set IN2 Duty Cycle to 100 from the HB2 tab Motor 1 will slow down to zero speed and reverse direction Now the motor current will be displayed in the HALF B...

Page 28: ...igure 6 2 DRV8962 Monitor Panel GUI Operations DRV8962 www ti com 28 DRV84x2_DRV82x2_DRV89x2 EVM User s Guide SLOU558 AUGUST 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated...

Page 29: ...settings during these tests should be left with default positions and values First set IN1 Duty Cycle to 50 Motor 1 will start spinning in one direction and the motor current will be displayed in the...

Page 30: ...H Bridges vs Single H Bridge allowing for higher current Figure 7 3 Driver Configuration 6 The LOAD CONTROL window will change to PWM control mode with four PWM settings sliders GUI Operations DRV8262...

Page 31: ...een in EVM Firmware Update Pop Up Figure 8 1 EVM Firmware Update Pop up The user can update the EVM to the latest firmware by simply going to File Program Device from either the EVM Home Page or the D...

Page 32: ...ng the EVM at the maximum device specifications and a high ambient temperature external cooling fans may be required to minimize potential fire hazard personal injury or both Evaluation Hardware Overv...

Page 33: ...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 34: ...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 35: ...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 36: ...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 37: ...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 38: ...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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