DRV8850EVM

User's Guide SLVUA01 – December 2013 DRV8850EVM User’s Guide This document is provided with the DRV8850 customer evaluation module (EVM) as a supplement to the DRV8850 (SLVSCC0) datasheet. It details the hardware implementation of the EVM. 1 2 3 Contents Printed-Circuit Board (PCB) Top 3-D View .............................................................................. Introduction .................................................................................................................. 2.1 Power Connectors ................................................................................................. 2.2 Test Points .......................................................................................................... 2.3 Jumpers and Switches ............................................................................................ 2.4 Speed Adjust Potentiometer (R15) .............................................................................. 2.5 Motor Outputs ...................................................................................................... 2.6 Operation of the EVM ............................................................................................. Schematic and Bill of Materials ........................................................................................... 3.1 DRV8850EVM Schematic ......................................................................................... 3.2 DRV8850EVM Bill of Materials ................................................................................... 2 3 3 3 4 6 7 7 8 8 9 List of Figures 1 PCB Top 3-D View .......................................................................................................... 2 2 DRV8850 Test Points ...................................................................................................... Direction Select Jumper (JP1) ............................................................................................ ON/OFF Switch (S1) ........................................................................................................ Speed Adjust Potentiometer (R2) ......................................................................................... DRV8850EVM Schematic.................................................................................................. 3 3 4 5 6 4 5 6 8 List of Tables 1 DRV8850EVM Bill of Materials ............................................................................................ SLVUA01 – December 2013 Submit Documentation Feedback DRV8850EVM User’s Guide Copyright © 2013, Texas Instruments Incorporated 9 1 Printed-Circuit Board (PCB) Top 3-D View 1 www.ti.com Printed-Circuit Board (PCB) Top 3-D View Figure 1 shows the top 3-D view of the DRV8850EVM. Figure 1. PCB Top 3-D View 2 DRV8850EVM User’s Guide SLVUA01 – December 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Introduction www.ti.com 2 Introduction The DRV8850EVM is a complete solution for evaluating the DRV8850 low voltage brushed DC motor driver. It includes a MSP430 microcontroller that is pre-programmed to take input from an analog potentiometer for PWM speed control, and a direction jumper to change motor direction. Power can be provided through the 2-pin terminal block header. To expand beyond the included firmware capability, the MSP430 can easily be re-programmed via the MSP430 LaunchPad Development tool (MSP-EXP430G2) available at www.ti.com/tool/msp-exp430g2. 2.1 Power Connectors The DRV8850EVM provides system power through the terminal block header (J1). The terminals are labeled VM and GND and supports 2–5.5 V. Please observe the correct polarity when connecting the power supply. The DRV8850’s onboard LDO provides the regulated 3.3 V for the onboard MSP430G2553. The DRV8850’s LDO is enabled and disabled through the push button switch (S1). This will disable the MSP430G2553 when the 3.3-V power rail is disabled. As previously mentioned, the MSP430 comes pre-programmed to control basic DC motor operation. If changing the firmware via the external MSP-EXP430G2 development tool is desired, it is not necessary or recommended to provide any input power to the DRV8850EVM. Power is provided from the MSPEXP430G2 board. 2.2 Test Points Test points are provided and labeled for the inputs to the DRV8850 motor driver (IN1H, IN1L, IN2H, and IN2L), the outputs of the motor driver (VPROPI, OUT1, and OUT2), and the onboard potentiometer reference signal (SPD_REF). One GND test point is also provided. Figure 2 highlights these test points. Figure 2. DRV8850 Test Points SLVUA01 – December 2013 Submit Documentation Feedback DRV8850EVM User’s Guide Copyright © 2013, Texas Instruments Incorporated 3 Introduction 2.3 www.ti.com Jumpers and Switches There is one jumper (JP1) located on the DRV8850EVM. This jumper controls the direction of the DC motor. There is one switch (S1) on the DRV8850EVM. This switch enables and disables the DRV8850EVM by sending the DRV8850EVM into a low power sleep mode and removing power from the onboard MSP430G2553. 2.3.1 Direction Select (JP1) Jumper JP1 is found in Figure 3. Installing the jumper provides a logic HIGH signal to a GPIO on the microcontroller. Depending on the motor connections across J4, the motor will spin either counter-clockwise or clockwise. Removing the jumper provides a logic LOW to the micro-controller and the input polarity of the signals to the DRV8850 is flipped. This will rotate the motor in the opposite direction. Figure 3. Direction Select Jumper (JP1) 4 DRV8850EVM User’s Guide SLVUA01 – December 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Introduction www.ti.com 2.3.2 ON/OFF Switch (S1) Pressing the S1 switch (see Figure 4) toggles the nSLEEP and LDOEN signals (tied together) to the DRV8850. When the system is OFF, the DRV8850 is in a low power consumption or sleep state, and the motor outputs along with the internal circuitry are turned OFF. By disabling the LDO on the DRV8850 this will, in turn, remove power from the MSP430G2553. Figure 4. ON/OFF Switch (S1) SLVUA01 – December 2013 Submit Documentation Feedback DRV8850EVM User’s Guide Copyright © 2013, Texas Instruments Incorporated 5 Introduction 2.4 www.ti.com Speed Adjust Potentiometer (R15) The speed adjust potentiometer is found in Figure 5. Turning the wheel towards the JP2 jumper reduces the input PWM duty cycle to the DRV8850 and the motor will turn slower until it stops. Turn the wheel towards the motor outputs and the motor will spin faster. You can also observe the STATUS LED highlighted in Figure 5. It will blink when the MSP430G2553 is enabled. Figure 5. Speed Adjust Potentiometer (R2) 6 DRV8850EVM User’s Guide SLVUA01 – December 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Introduction www.ti.com 2.5 Motor Outputs Connect a DC motor across OUT1 and OUT2. Polarity is not critical. 2.6 Operation of the EVM 1. Connect a DC motor across OUT1 and OUT2. 2. Adjust SPD_ADJ potentiometer to minimum voltage by turning it all the way counter-clockwise. This minimizes the motor speed. 3. Apply power to the terminal block header J1. 4. Adjust SPD_ADJ potentiometer clockwise and the motor will start to turn. Continue adjusting as desired. 5. To change direction, remove or install the JP1 jumper. CAUTION The motor will be hot when under excessive load or shaft lock. Be careful when handling the motor under these conditions. SLVUA01 – December 2013 Submit Documentation Feedback DRV8850EVM User’s Guide Copyright © 2013, Texas Instruments Incorporated 7 Schematic and Bill of Materials 3 www.ti.com Schematic and Bill of Materials The following sections contain the DRV8850EVM schematic and bill of materials (BOM). 3.1 DRV8850EVM Schematic Figure 6 illustrates the DRV8850EVM schematic. TEST POINTS & DEBUG MODE DRV8850 Motor Supply and Outputs U1 1 TBLK_6A_2X3.5MM_RA GND J2 25 R4 2.4k GND 1 OUT1 2 OUT2 SPEED TP1 GND OUT2 24 23 22 21 20 19 18 17 16 15 14 13 GND TP2 OUT1 TP3 OUT2 TP4 Remove R9 To Debug MSP430 With Motor Supply R9 V3P3 VM C3 0.1µF VPROPI V3P3 OUT2 C2 0.1µF GND OUT2 OUT2 OUT2 VCC VCC VCC VCP VPROPI LDOOUT LDOFB GND OUT1 2 C1 10µF GND OUT1 OUT1 OUT1 IN1H IN1L IN2H IN2L nSLEEP LDOEN SR GND SPD_REF 1 2 3 4 IN1H 5 IN1L 6 IN2H 7 IN2L 8 nSLEEP 9 TOGGLE 10 11 12 J1 PPAD GND OUT1 VM IN2H TP7 IN2L TP8 GND R1 127k IN1H TP5 R3 C4 2.2µF 1.00k IN1L TP6 V3P3X 0 VPROPI TP9 Remove R5-8 To Supply External Control Signals R5 IN1H_MCU IN1H 0 IN1L DRV8850RGY R6 IN1L_MCU 0 GND IN2H VPROPI IN2L IN2H IN1L IN1H R2 40.2k GND TBLK_6A_2X3.5MM_RA R7 IN2H_MCU 0 IN2L R8 IN2L_MCU 0 GND MSP430 w/ SPW Interface POWER ON/OFF V3P3 3 EXTERNAL SIGNALS V3P3 SPD_REF 1 C7 0.1µF R14 47k GND GND 2 A C D_LED_603_GRN V3P3 2 DIR DIR J3 4 3 2 1 V3P3X SBWTCK SBWTDIO IN1L_MCU IN2L_MCU 20 19 18 17 16 15 14 13 12 11 R12 20k DIR SBWTCK SBWTDIO STATUS D2 2 GND A C 1 2 D-1N4148 IN1H_MCU IN2H_MCU A 1 Y 4 SN74LVC1G14DCK 20k S1 MSP430G2553IPW20 851-43-004-20-001000 GND MSP430 Can Be Programmed Utilizing LaunchPad with SPW Header 2 3 R13 R11 0, DNP U3 U4 D VCC 5 CLK GND ~Q SN74LVC1G80DCK TOGGLE 4 R10 nSLEEP 0 Remove R10 to Detach nSLEEP From LDOEN C6 1µF C5 0.1µF SKRKAEE010 1 D1 1 GND P2.6 P2.7 SBWTCK SBWTDIO P1.7 P1.6 P2.5 P2.4 P2.3 2 JP1 R16 510 VCC P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P2.0 P2.1 P2.2 1 STATUS 1 2 3 4 5 6 7 8 9 10 5 R15 3352T-1-503LF GND VCC W 3 CCW CW VM U2 SPD_REF 2 GND GND Figure 6. DRV8850EVM Schematic 8 DRV8850EVM User’s Guide SLVUA01 – December 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Schematic and Bill of Materials www.ti.com 3.2 DRV8850EVM Bill of Materials Table 1 contains the BOM for the DRV8850EVM. Table 1. DRV8850EVM Bill of Materials Designator Description Manufacturer Part Number Qty PCB1 Printed Circuit Board Any DRV8850EVM 1 C1 CAP, CERM, 10uF, 10V, +/-10%, X7R, 0805 MuRata GRM21BR71A106KE51L 1 C2 CAP, CERM, 0.1uF, 16V, +/-10%, X7R, 0402 MuRata GRM155R71C104KA88D 1 C3 CAP, CERM, 0.1uF, 16V, +/-10%, X5R, 0402 MuRata GRM155R61C104KA88D 1 C4 CAP, CERM, 2.2uF, 10V, +/-10%, X5R, 0402 TDK C1005X5R1A225K050BC 1 C5 CAP, CERM, 0.1uF, 16V, +/-10%, X7R, 0603 MuRata GRM188R71C104KA01D 1 C6 CAP, CERM, 1uF, 16V, +/-10%, X5R, 0603 TDK C1608X5R1C105K 1 C7 CAP, CERM, 0.1uF, 16V, +/-5%, X7R, 0603 Kemet C0603C104J4RACTU 1 D1 Diode, LED, Green, 2.1-V, 20-mA, 6-mcd Lite On LTST-C190GKT 1 D2 Diode, Signal, 300-mA, 75-V, 350-mW Diodes 1N4148W-7-F 1 J1, J2 TERM BLOCK 2POS SIDE ENT 3.5MM TE Connectivity 1776275-2 2 J3 SOCKET .050" GRID SIP 4 POS R/A, TH Mill-Max 851-43-004-20-001000 1 JP1 Header, Male 2-pin, 100mil spacing, Sullins PEC02SAAN 1 R1 RES, 127k ohm, 1%, 0.063W, 0402 Vishay-Dale CRCW0402127KFKED 1 R2 RES, 40.2k ohm, 1%, 0.063W, 0402 Vishay-Dale CRCW040240K2FKED 1 R3 RES, 1.00k ohm, 1%, 0.063W, 0402 Vishay-Dale CRCW04021K00FKED 1 R4 RES, 2.4k ohm, 5%, 0.063W, 0402 Vishay-Dale CRCW04022K40JNED 1 R5, R6, R7, R8, R9, R10 RES, 0 ohm, 5%, 0.1W, 0603 Vishay-Dale CRCW06030000Z0EA 6 R11 RES, 0 ohm, 5%, 0.1W, 0603 DNP DNP 1 R12, R13 RES, 20k ohm, 5%, 0.1W, 0603 Vishay-Dale CRCW060320K0JNEA 2 R14 RES, 47k ohm, 5%, 0.1W, 0603 Vishay-Dale CRCW060347K0JNEA 1 R15 Potentiometer, 3/8 Cermet, SingleTurn, Flat Bourns 3352T-1-503LF 1 R16 RES, 510 ohm, 5%, 0.1W, 0603 Vishay-Dale CRCW0603510RJNEA 1 S1 Switch, Push Button, SMD Alps SKRKAEE010 1 SH-JP1 Shunt, 100mil, Gold plated, Black 3M 969102-0000-DA 1 TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9 PC Test Point, Miniature Keystone 5019 9 U1 LOW VOLTAGE H-BRIDGE IC WITH LDO VOLTAGE REGULATOR Texas Instruments DRV8850RGY 1 U2 MIXED SIGNAL MICROCONTROLLER Texas Instruments MSP430G2553IPW20 1 U3 IC, Single Positive-Edge-Triggered D-Type Flip-Flop TI SN74LVC1G80DCK 1 U4 IC, Single Schmitt-Trigger Inverter TI SN74LVC1G14DCK 1 SLVUA01 – December 2013 Submit Documentation Feedback DRV8850EVM User’s Guide Copyright © 2013, Texas Instruments Incorporated 9 EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods. Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh or contact TI. No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which such TI products or services might be or are used. TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. REGULATORY COMPLIANCE INFORMATION As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal Communications Commission (FCC) and Industry Canada (IC) rules. For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency 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 frequency interference. Operation of the equipment may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. General Statement for EVMs including a radio User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization. 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 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 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. For EVMs annotated as IC – INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs including radio transmitters This device complies with Industry Canada licence-exempt RSS standard(s). 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. 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. Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada. Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement. 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. 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. SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER 【Important Notice for Users of EVMs for RF Products in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product 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 this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product, or Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. 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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. 2. 3. 4. 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. 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. 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. 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. 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