ISO7842-EVM

User's Guide SLAU602 – October 2014 ISO78xx Triple/Quad Digital Isolator Evaluation Module This user’s guide describes the ISO78xx Triple/Quad Digital Isolator Evaluation Module (EVM). This EVM allows designers to evaluate device performance for fast development and analysis of isolated systems. The EVM supports evaluation of any of the TI triple- or quad-channel digital isolators in a 16DW package. CAUTION This evaluation module is made available for isolator parameter performance evaluation only and is not intended for isolation voltage testing. To prevent damage to the EVM, any voltage applied as a supply or digital input/output must be maintained within the 0 V to 5.5 V recommended operating range. 1 2 3 4 5 6 7 Contents Introduction ................................................................................................................... Overview ...................................................................................................................... Pin Configurations of the ISO78xx Triple- and Quad-Channel Digital Isolators ..................................... ISO7842 – EVM Board Block Diagram and Image ...................................................................... EVM Setup and Operation .................................................................................................. Bill of Materials ............................................................................................................... EVM Schematics and Layout .............................................................................................. 2 2 2 3 4 5 6 List of Figures ........................................................... 1 ISO783x Triple-Channel Digital Isolator Pin Configurations 2 ISO784x Quad-Channel Digital Isolator Pin Configurations............................................................ 2 3 ISO7842 EVM Configuration ............................................................................................... 3 4 ISO78xx-EVM Photograph 3 5 Basic EVM Operation 4 6 7 8 ................................................................................................. ....................................................................................................... Typical Input and Output Waveforms ..................................................................................... ISO78xx EVM Schematic ................................................................................................... ISO78xx PCB Layout ........................................................................................................ 2 4 6 7 List of Tables 1 Bill of Materials ............................................................................................................... 5 SLAU602 – October 2014 Submit Documentation Feedback ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated 1 Introduction 1 www.ti.com Introduction This user’s guide describes EVM operation with respect to the ISO78xx triple- and quad-channel digital isolators. However, the EVM may be reconfigured for evaluation of any of TI’s triple- or quad-channel digital isolators in a 16DW package. This guide also describes the available channel configurations within the ISO78xx family, the EVM schematic, and typical laboratory setup. A typical input and output waveform is also presented. 2 Overview The ISO78xx is TI’s new digital isolator family capable of galvanic isolations up to 8000 Vpk. The devices are certified to meet reinforced isolation requirements by VDE and CSA. These isolators provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/O’s. The ISO78xx digital isolators have logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier. Used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with, or damaging sensitive circuitry. 3 Pin Configurations of the ISO78xx Triple- and Quad-Channel Digital Isolators Figure 1 illustrates the ISO783x triple-channel digital isolator pin configurations. ISO 7830 ISO 7831 16 VCC2 VCC1 1 16 VCC2 GND1 2 15 GND2 GND1 2 15 GND2 INA 3 14 OUTA INA 3 14 OUTA INB 4 13 OUTB INB 4 13 OUTB OUTC 5 12 INC INC 5 12 OUTC NC 6 11 NC NC 6 11 NC EN1 7 10 EN2 NC 7 10 EN2 GND1 8 9 GND2 GND1 8 9 I S O L A TI O N 1 I S O L A TI O N VCC1 GND2 Figure 1. ISO783x Triple-Channel Digital Isolator Pin Configurations Figure 2 shows the ISO784x quad-channel digital isolator pin configurations. ISO 7841 ISO 7842 ISO 7840 VCC2 VCC1 1 16 VCC2 VCC1 1 16 VCC2 GND1 2 15 GND2 GND1 2 15 GND2 GND1 2 15 GND2 INA 3 14 OUTA INA 3 14 OUTA INA 3 14 OUTA INB 4 13 OUTB INB 4 13 OUTB INB 4 13 OUTB OUTC 5 12 INC INC 5 12 OUTC INC 5 12 OUTC OUTD 6 11 IND OUTD 6 11 IND IND 6 11 OUTD EN1 7 10 EN2 EN1 7 10 EN2 NC 7 10 EN2 GND1 8 9 GND2 GND1 8 9 GND2 GND1 8 9 I S O L A TI O N 16 I S O L A TI O N 1 I S O L A TI O N VCC1 GND2 Figure 2. ISO784x Quad-Channel Digital Isolator Pin Configurations 2 ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated SLAU602 – October 2014 Submit Documentation Feedback ISO7842 – EVM Board Block Diagram and Image www.ti.com 4 ISO7842 – EVM Board Block Diagram and Image Figure 3 shows the board configuration for evaluation of the ISO7842 quad-channel digital isolator. JR1 JL1 CL1 CL2 CL3 CL4 CL5 CR5 JL2 VCC1 1 16 VCC2 J3 GND1 2 15 GND2 10 kO 50 O CR4 J5 10 kO J6 CR1 J14 10 kO 3 14 4 13 J13 10 kO 50 O 5 12 6 11 J12 50 O 10 kO J11 EN1 7 10 EN2 10 kO J7 CR2 JR2 J4 10 kO CR3 50 O GND1 8 9 GND2 10 kO J10 10 kO 10 kO Figure 3. ISO7842 EVM Configuration Figure 4 shows the photograph of the EVM. Figure 4. ISO78xx-EVM Photograph SLAU602 – October 2014 Submit Documentation Feedback ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated 3 EVM Setup and Operation 5 www.ti.com EVM Setup and Operation This section describes the setup and operation of the EVM for parameter performance evaluation. Figure 5 shows the configuration for operating the ISO78xx Triple/Quad Digital Isolator EVM using two power supplies. VCC1 GND1 VCC2 GND2 Signal Generator Scope CHx CHx Figure 5. Basic EVM Operation Figure 6 shows typical input and output waveforms of the EVM for a 1-MHz clock. The input is shown as channel 1, and the output is shown as channel 2. Figure 6. Typical Input and Output Waveforms 4 ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated SLAU602 – October 2014 Submit Documentation Feedback Bill of Materials www.ti.com 6 Bill of Materials Table 1 shows the bill of materials (BOM) for this EVM. Table 1. Bill of Materials Item Quantity References Value Footprint 1 2 CL1,CR1 22uF 7343 2 2 CL2,CR2 10uF 1206 3 4 CL3,CL4,CR3,CR4 1uF 0603 4 2 CL5,CR5 0.1uF 0402 5 4 FBL1,FBL2,FBR1,FBR2 600ohms 1206 6 4 H1,H2,H3,H4 STANDOFF STANDOFF 7 4 JL1,JL2,JR1,JR2 BANANA BANANA 9 10 J3,J4,J5,J6,J7,J10,J11,J12,J13,J14 SMA SMA 10 10 P3,P4,P5,P6,P7,P10,P11,P12,P13,P14 3 pin Header Header 11 10 R2_3,R2_4,R2_5,R2_6,R2_7,R2_10,R2_11,R2_12,R2_1 3,R2_14 10Kohms 0402 12 10 R3,R4,R5,R6,R7,R10,R11,R12,R13,R14 DNP 0402 13 2 T1,T16 Test Point Test Point 14 14 T2,T8,T9,T15,TG3,TG4,TG5,TG6,TG7,TG10,TG11,TG12 Test Point ,TG13,TG14 Test Point 15 20 T3,T4,T5,T6,T7,T10,T11,T12,T13,T14,TP3,TP4,TP5,TP6 ,TP7,TP10,TP11,TP12,TP13,TP14 Test Point Test Point 16 1 U1 ISO78xx ISO78xx SLAU602 – October 2014 Submit Documentation Feedback ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated 5 EVM Schematics and Layout 7 www.ti.com EVM Schematics and Layout Separate orderable EVMs are available for each triple- and quad-channel device in the ISO78xx family of digital isolators. The EVMs need to be modified only in the placement of 50-Ω termination resistors at the input, and 10-pF capacitive loads at the output (if needed) of each channel. Figure 7 shows the ISO78xx EVM schematic and Figure 8 shows the printed-circuit board (PCB) layout. VCC1 VCC2 GND1 GND2 IO3 IO14 IO4 IO13 U1 IO5 IO12 IO6 IO11 EN1 EN2 GND1 GND2 Figure 7. ISO78xx EVM Schematic 6 ISO78xx Triple/Quad Digital Isolator Evaluation Module SLAU602 – October 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated EVM Schematics and Layout www.ti.com Figure 8. ISO78xx PCB Layout SLAU602 – October 2014 Submit Documentation Feedback ISO78xx Triple/Quad Digital Isolator Evaluation Module Copyright © 2014, Texas Instruments Incorporated 7 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES 1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions. 1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software 1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production system. 2 Limited Warranty and Related Remedies/Disclaimers: 2.1 These terms and conditions do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License Agreement. 2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM to User. Notwithstanding the foregoing, TI shall not be liable for any defects that are caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity other than TI. Moreover, TI shall not be liable for any defects that result from User's design, specifications or instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as mandated by government requirements. TI does not test all parameters of each EVM. 2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM, or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day warranty period. 3 Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. 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. SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER 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 Concerning EVMs Including Radio Transmitters: This device complies with Industry Canada license-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. 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 are NOT certified by TI as conforming to Technical Regulations of Radio Law of Japan. If User uses EVMs in Japan, User is required by Radio Law of Japan to follow the instructions below with respect to EVMs: 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. SPACER SPACER SPACER SPACER SPACER 【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】 本開発キットは技術基準適合証明を受けておりません。 本製品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 SPACER 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. User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or designees. 4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements. 5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. 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. SPACER SPACER SPACER SPACER SPACER SPACER SPACER 6. Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (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 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 AND CONDITIONS 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 MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF THE EVM. 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 AND CONDITIONS. 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 ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, 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 ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED. 8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND CONDITIONS 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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