DRV10866EVM

User's Guide SBVU020B – November 2012 – Revised November 2018 DRV10866EVM User’s Guide This document is provided with the DRV10866 customer evaluation module (EVM) as a supplement to the DRV10866 (SBVS206) datasheet. It details the hardware implementation of the EVM. 1 2 3 Contents PCB ............................................................................................................................ INTRODUCTION............................................................................................................. 2.1 Power Connectors .................................................................................................. 2.2 Test Points ........................................................................................................... 2.3 Jumpers .............................................................................................................. 2.4 Speed Adjust Potentiometer (R1)................................................................................. 2.5 Motor Outputs ....................................................................................................... 2.6 Operation of the EVM .............................................................................................. Schematic and Bill Of Materials............................................................................................ 2 3 3 3 4 6 7 7 7 List of Figures 1 Top 3D View .................................................................................................................. 2 2 Bottom 3D View .............................................................................................................. 2 3 Top View (J4 Power Supply Header) ..................................................................................... 3 4 Bottom View (Micro USB Jack) ............................................................................................ 3 5 J1 Location ................................................................................................................... 4 6 J2 Location ................................................................................................................... 5 7 Pin 1 of J2 .................................................................................................................... 5 8 Speed Adjust Potentiometer 9 Motor Outputs ................................................................................................................ 7 10 DRV10866EVM Schematic ................................................................................................. 8 ............................................................................................... SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated DRV10866EVM User’s Guide 6 1 PCB 1 www.ti.com PCB Figure 1. Top 3D View Figure 2. Bottom 3D View 2 DRV10866EVM User’s Guide SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated INTRODUCTION www.ti.com 2 INTRODUCTION The DRV10866EVM is a complete solution for evaluating the DRV10866 5-V, three-phase sensorless BLDC motor driver. It includes a TLC555 timer configured to supply a PWM to the DRV10866, a potentiometer to adjust the speed of the motor by varying the duty cycle of the PWM, a jumper on the FG pin to allow the use of an external pull up resistor, and a jumper on the FGS pin to set ½ or normal frequency output on the FG pin. Power can be provided with the included micro-USB cable for 5 V or externally provided, up to 5.5 V, through the power header. The PWN, FG, and GND signals are all brought out to surface mounted test points. The DRV10866EVM is configured so that connections to only the motor and power supply are required. 2.1 Power Connectors The DRV10866EVM uses a combination of headers and a USB input jack (on bottom side) for the application/monitoring of power. For the EVM, only a single power supply rail is necessary. Minimum recommended VIN for the EVM is 2 V and maximum is 5.5 V. Please see the datasheet for the DRV10866 for complete voltage range information of the driver itself. When power is supplied to the board a green LED (D3) in the bottom right corner should enable. The overcurrent threshold setup pin sets the current limit for the device and is connected to a 3.8-kΩ resistor (R6) on the DRV10866EVM. This sets the current limit at 820 mA for the DRV10866. This resistor can be replaced and a new current limit set using the equation seen below. Please see the datasheet for the DRV10866 for more information on the overcurrent threshold setup pin. ILIMIT (mA) = 3120/RCS (kΩ) (1) VCC for the DRV10866 is directly taken off the micro USB jack supply or J4 power supply header. The J4 header is located on the top side of the EVM near the bottom right of the board as shown in Figure 3. The micro USB jack is located on the bottom side of the board as shown in Figure 4. The micro USB jack is only to supply power for the EVM and does not provide any additional functionality. Please choose only one method for providing power to the EVM. Figure 3. Top View (J4 Power Supply Header) Figure 4. Bottom View (Micro USB Jack) NOTE: It is only necessary to provide one source of power for the EVM. DO NOT connect to both the micro USB jack and the J4 power supply header. 2.2 Test Points Test points are provided and labeled according to the inputs/outputs of the DRV10866 motor driver. The signals brought out to test points are labeled “FG”, “PWM”, and “GND”. The signal “PWM” is generated by circuitry on the EVM. In order to provide your own PWM signal to the motor driver, remove the 0-Ω resistor (R6) and connect your own PWM signal to the “PWM” test point. The “PWM” signal generated by the circuitry on the EVM is approximately 25 kHz and can be adjusted from 5% to 95% duty cycle by the potentiometer (R1) located on the EVM. SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated DRV10866EVM User’s Guide 3 INTRODUCTION www.ti.com The FG signal’s frequency represents the motor speed and phase information. RPM = (FG x 60)/pole pairs (2) Refer to the data sheet of the DRV10866 for more information regarding the FG pin. 2.3 Jumpers There are two jumpers (J1 and J2) on the EVM that are normally installed. One jumper connects the FG pin of the DRV10866 to a pull up resistor and the other jumper determines whether FG is ½ or normal frequency output by connecting FGS to either VCC or GND. For normal operation right out of the box both jumpers should be installed. 2.3.1 FGS Frequency Generator Select (J1) Jumper J1 can be found in the image below, Figure 5. Installing the jumper connects the FGS pin on the DRV10866 to GND. When the FGS pin is tied to GND, the FG output of the DRV10866 is set for normal frequency output. With the jumper out, the FGS pin pulls up to VCC. When the FGS pin is tied to VCC, the FG output of the DRV10866 is set for ½ of the original FG frequency. FGS is latched upon power to the EVM so power must be cycled in order for the FG output to change. Figure 5. J1 Location 4 DRV10866EVM User’s Guide SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated INTRODUCTION www.ti.com 2.3.2 FG Pullup (J2) Jumper JP2 can be found in Figure 6. Installing the jumper connects the FG pin of the DRV10866 to an on board pull up resistor. Figure 6. J2 Location To make an external connection to FG, the jumper can be removed and pin 1 of the header provides a direct connection to the FG pin of the DRV10866. Pin 1 of J2 is highlighted in the image below, Figure 7. Note that if the jumper is removed, an external pull up resistor is needed for connection of FG to an external system. For more information regarding the FG pin please refer to the datasheet of the DRV10866. Figure 7. Pin 1 of J2 SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated DRV10866EVM User’s Guide 5 INTRODUCTION 2.4 www.ti.com Speed Adjust Potentiometer (R1) The speed adjust potentiometer (Spd_Adj) can be found in Figure 8. The potentiometer adjusts the duty cycle of the PWM signal which will in turn adjust the speed of the motor. In order to lower the duty cycle and in turn lower the speed, turn the potentiometer counter-clockwise. In order to increase the duty cycle and in turn increase the speed, turn the potentiometer clockwise. Figure 8. Speed Adjust Potentiometer The onboard PWM signal for the DRV10866 is generated by a circuit based upon the Texas Instruments TLC555 low power timer. It is capable of an approximately 25-kHz output that can be adjusted from 5% to 95% duty cycle. This square output signal will switch from 0 V to VCC. In order to provide an external PWM signal to the DRV10866, first remove the 0-Ω resistor (R6). Next, connect the external PWM signal to the “PWM” surface mounted test point. For more information on the PWM input required by the DRV10866 please refer to the datasheet. 6 DRV10866EVM User’s Guide SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated INTRODUCTION www.ti.com 2.5 Motor Outputs Connect a three-phase 5-V BLDC motor to pins A, B, C, and COM of the header J5. Polarity is not critical for A, B, and C. If you wish to rotate the motor in the opposite direction switch two out of the three wires to A, B, and C. The motor outputs are located on J5 as shown in Figure 9. Figure 9. Motor Outputs 2.6 Operation of the EVM 1. Connect a 5-V, three-phase BLDC motor to pins A, B, C, and COM of J5. 2. Adjust the “Spd_Adj” potentiometer R2 to minimum voltage by turning it all the way counter-clockwise. This will minimize the motor speed. 3. Apply power to the J4 header or with external USB cable plugged into a computer USB jack. DO NOT connect to both the micro USB jack and the J4 power supply header. 4. Adjust the “Spd_Adj” potentiometer clockwise towards the motor outputs to increase speed and the motor will start to turn. Continue adjusting as desired. 5. To change direction, switch two out of the three wires to A, B, and C. 3 Schematic and Bill Of Materials The following pages contain the DRV10866EVM schematic and bill of materials. SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated DRV10866EVM User’s Guide 7 Schematic and Bill Of Materials www.ti.com 2 3 4 J3 FG GND 1 X X X GND 1 C6 10uF VCC A PWM USB Mini B Connector FG A PWM 5 4 3 2 1 GND NC D+ DVCC 1 1 VCC GND J4 1 2 C5 10uF C1 10nF Header 2 THRES GND C4 .1uF GND SchottkyDiode D1 U2 D2 B GND SchottkyDiode 1 R2 2 3 J5 MOTC MOTB MOTA MOTCOM 5K J2 2 1 4 3 2 1 Header 2 FG 1 VCC 4 GND VDD TRIG DISCH OUT THRES RESET CONT 7 6 B PWM_X R6 0.0 PWM THRES C2 5 10nF TLC555 PWM with Variable DutyCycle Frequencyis approximately 25 kHz Header 4 R5 0402 10K VCC 8 GND VCC R4 0402 100K U1 3 MOTA C3 2.2 uF 4 PWM COM CS VCC FGS U GND V W 10 PWM GND GND D3 R1 9 0402 3.8k 8 MOTB 6 MOTC C R7 VCC 0402 330 GND 7 STATUS GND VCC 11 5 FG FGS MOTCOM 2 THML_PAD C DRV10866 R3 0402 47K GND 1 2 GND D Title D DRV10866_EVM J1 Header 2 Size Number Revision REV B A Date: File: 1 2 3 8/8/2012 C:\Users\..\DRV10866_EVM.SchDoc Sheet 1 of 1 Drawn By: Nicholas Oborny 4 Figure 10. DRV10866EVM Schematic 8 DRV10866EVM User’s Guide SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated Schematic and Bill Of Materials www.ti.com Table 1. DRV10866EVM Bill of Materials Item No. Qty Designator Vendor Vendor Part # Manufacturer Part No. Description 1 1 C3 DigiKey 587-2909-1-ND Taiyo Yuden TMK107ABJ225KA-T CAP CER 2.2UF 25V 10% X5R 0603 2 1 C4 DigiKey 490-3261-1-ND Murata Electronics North America GRM155R71C104KA88D CAP CER 0.1UF 16V 10% X7R 0402 3 1 D3 DigiKey 754-1116-1-ND Stanley Electric & Co HBR1105W-TR LED 1.6X0.8MM 570NM GRN CLR SMD 4 1 J3 DigiKey A97799CT-ND TE Connectivity 1981584-1 CONN RCPT MICRO USB TYPE AB 5 1 J5 DigiKey 3M9449-ND 3M 961104-6404-AR CONN HEADER VERT SGL 4POS GOLD 6 1 R1 DigiKey P3.83KLCT-ND Panasonic - ECG ERJ-2RKF3831X RES 3.83K OHM 1/10W 1% 0402 SMD 7 1 R2 DigiKey 3352T-502LF-ND Bourns Inc. 3352T-1-502LF POT 5.0K OHM THUMBWHEEL CERM ST 8 1 R3 DigiKey P47KJCT-ND Panasonic - ECG ERJ-2GEJ473X RES 47K OHM 1/10W 5% 0402 SMD 9 1 R4 DigiKey P100KJCT-ND Panasonic - ECG ERJ-2GEJ104X RES 100K OHM 1/10W 5% 0402 SMD 10 1 R5 DigiKey P10KJCT-ND Panasonic - ECG ERJ-2GEJ103X RES 10K OHM 1/10W 5% 0402 SMD 11 1 R6 DigiKey 311-0.0JRCT-ND Yageo RC0402JR-070RL RES 0.0 OHM 1/16W 0402 SMD 12 1 R7 DigiKey P330JCT-ND Panasonic - ECG ERJ-2GEJ331X RES 330 OHM 1/10W 5% 0402 SMD 13 1 U1 Supplied Supplied Texas Instruments Supplied 5-V, Three-Phase Sensorless BLDC Motor Driver 14 1 U2 DigiKey 296-10341-1-ND Texas Instruments TLC555QDR IC OSC MONO TIMING 2.1MHZ 8-SOIC 15 2 C1, C2 DigiKey 445-1260-1-ND TDK Corporation C1005X7R1E103K CAP CER 10000PF 25V 10% X7R 0402 16 2 C5, C6 DigiKey 445-7645-1-ND TDK Corporation C2012X5R1C106M/0.85 CAP CER 10UF 16V 20% X5R 0805 17 2 D1, D2 DigiKey MSS1P4M3/89AGICT-ND Vishay General Semiconductor MSS1P4-M3/89A DIODE SCHOTTKY 1A 40V MICROSMP 18 3 FG, GND, PWM Mouser 534-5019 Keystone Electronics 5019 PC TEST POINT MINIATURE SMT 19 3 J1, J2, J4 DigiKey 3M9447-ND 3M 961102-6404-AR CONN HEADER VERT SGL 2POS GOLD SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated DRV10866EVM User’s Guide 9 Revision History www.ti.com Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from A Revision (December 2012) to B Revision ........................................................................................... Page • 10 Changed wording of 1. in Section 2.6; deleted Figure 10 Revision History ........................................................................... 7 SBVU020B – November 2012 – Revised November 2018 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated STANDARD TERMS FOR EVALUATION MODULES 1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein. 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Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter. 3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant: CAUTION This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. 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 installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 3.2 Canada 3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247 Concerning EVMs Including Radio Transmitters: This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concernant les EVMs avec appareils radio: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concerning EVMs Including Detachable Antennas: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna 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 by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur 3.3 Japan 3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に 輸入される評価用キット、ボードについては、次のところをご覧ください。 http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified by TI as conforming to Technical Regulations of Radio Law of Japan. If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the 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 should be verified by User): 1. 2. 3. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan. 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 2. 3. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 実験局の免許を取得後ご使用いただく。 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. 4 EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. 4.3 Safety-Related Warnings and Restrictions: 4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should 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 also result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM user 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, even with the inputs and outputs kept within the specified allowable ranges, some circuit components may have elevated case temperatures. These components include but are not limited to linear regulators, switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm. 4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure 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. 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However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free. 6. Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS. 6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED. 7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL 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 HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED. 8. Limitations on Damages and Liability: 8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED. 8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR 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. Furthermore, no return of EVM(s) will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s), excluding any postage or packaging costs. 10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas, without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas. 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