Texas Instruments CPG004DRV88 EVM Series User Manual Download Page 20

EVALUATION BOARD/KIT/MODULE (EVM)

WARNINGS, RESTRICTIONS AND DISCLAIMERS

For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished
electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in
laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks
associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end
product.

Your Sole Responsibility and Risk. You acknowledge, represent and agree that:

1.

You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug
Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees,
affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes.

2.

You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable
regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates,
contractors or designees, using the EVM. Further, you are responsible to assure that 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 electrical shock hazard.

3.

Since the EVM is not a completed product, it may not meet all applicable regulatory and safety compliance standards (such as UL,
CSA, VDE, CE, RoHS and WEEE) which may normally be associated with similar items. You assume full responsibility to determine
and/or assure compliance with any such standards and related certifications as may be applicable. You will employ reasonable
safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even if the EVM should fail to
perform as described or expected.

4.

You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.

Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the
user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and
environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please contact
a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the
specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or
interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the
load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures
greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include
but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please
be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable
in electronic measurement and diagnostics normally found in development environments should use these EVMs.

Agreement to Defend, Indemnify and Hold Harmless. You agree to defend, indemnify and hold TI, its licensors and their representatives
harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in
connection with any use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims
arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.

Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such
as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, such as devices
which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate
Assurance and Indemnity Agreement.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2013, Texas Instruments Incorporated

Summary of Contents for CPG004DRV88 EVM Series

Page 1: ...indows Application Software 5 3 The Windows Application 5 3 1 The Menu 7 3 2 DRV88xx GPIO Control Signals 7 3 3 Updating DAC Output for Current Control VREFA and VREFB 8 3 4 DC Motor Speed Control PWM...

Page 2: ...e monitoring of the input power rail User must apply VM according to datasheet recommended parameters NOTE VDD for logic and microcontroller is derived from USB interface 1 2 Test Stakes Every pin on...

Page 3: ...ion JP2 2 3 to select the respective variable resistance potentiometer This jumper should not be left open as lack of reference voltage on the device will minimize current sourcing into the respective...

Page 4: ...RV8802 12 13 14 JP1 3 4 DRV8824 25 JP1 5 6 DRV8841 43 JP1 3 4 1 3 3 DECAY Select Jumper JP3 Figure 3 DECAY Select Jumper Configuration 1 4 Motor Outputs There are two ways of connecting the different...

Page 5: ...hical user interface GUI has been designed to allow for all of the DRV88xx device s functionality to be tested without having to intervene with the hardware except for the proper configuration of jump...

Page 6: ...of microstepping Figure 6 DRV8841 43 Tab The DRV8841 43 tab is very similar to the DRV8802 12 13 14 tab except correct naming conventions have been followed to showcase the AINx pins instead of PHASE...

Page 7: ...connect Press Disconnect to disable the serial communications 3 1 0 0 should return on the text box as an acknowledge The text box also changes from red to green 4 The application is ready for use 3 2...

Page 8: ...ut voltage DAC_VALUE is a number from 0 to 4095 Moving the sliders will update the VREF xV caption below each respective slider with the result of the previous equation giving the user an idea of what...

Page 9: ...f operation the motor is ready to be turned The DRV88xx EVM allows for the possibility of coordinating step rates such that accelerating and decelerating profiles are achieved Both acceleration and de...

Page 10: ...ion When the motor is stepping the Update Speed button becomes enabled Speed can be updated by modifying the PPS text box and then pressing the Update Speed button The Speed Button is disabled every t...

Page 11: ...the PPS text box The user must then provide number of steps per resolution the motor has been manufactured to achieve For example a 1 8 degrees stepper motor would have 200 steps per revolution and so...

Page 12: ...i com 4 Schematics See the following pages for schematics 12 CPG004_DRV88xx Evaluation Modules SLVU361B April 2010 Revised October 2013 Submit Documentation Feedback Copyright 2010 2013 Texas Instrume...

Page 13: ...F C5 1 2 3 4 5 6 JP1 BVREF_SEL AVREF VDD 3 3K R1 nFAULT VDD 3 3K R4 BI1 nHM BI1 10K R8 GND 2 2 3 3 1 1 JP3 DECAY_SEL VDD DECAY GDECAY 0 1uF C12 GND D1 VM 1 2 J1 VM 1 2 3 4 J3 V3P3OUT V3P3OUT 330 R20 D...

Page 14: ...1 34 P4 2 TB2 38 P4 5 TB5 41 P5 2 SOMI1 46 P5 5 SMCLK 49 XT2OUT 52 TDI TCLK 55 P6 0 A0 59 AVSS 62 P4 6 TB6 42 U2 MSP430F1612 GND GND GND 10uF C15 10uF C17 0 1uF C16 33pF C19 33pF C20 1 2 3 4 5 6 7 8 9...

Page 15: ...PHA DIR AIN2 1 TP29 GND GND 1 TP25 VM 1 TP26 VDD VM VDD 1 TP28 GND GND 1 TP33 GND GND 1 TP32 GND GND 1 TP30 GND GND 1 TP31 GND GND 1 TP27 VM VM A TexasInstruments 3 of 3 CPG004 Sheet B InputVoltageVC...

Page 16: ...Page Changed figure 5 and supporting text below image 6 NOTE Page numbers for previous revisions may differ from page numbers in the current version 16 Revision History SLVU361B April 2010 Revised Oc...

Page 17: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Page 18: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Page 19: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Page 20: ...erations per the user guidelines Exceeding the specified EVM ratings including but not limited to input and output voltage current power and environmental ranges may cause property damage personal inj...

Page 21: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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