TPS65130EVM-839

User's Guide SLVUAW6 – December 2017 TPS65130EVM-839 User's Guide This user's guide describes the characteristics, operation, and use of the TPS65130 evaluation module (EVM). It includes the EVM specifications, the recommended setup, the schematic diagram, the board layouts, and the bill of materials.. 1 2 3 4 5 6 7 Contents Introduction ................................................................................................................... Performance Specification Summary ..................................................................................... Schematics ................................................................................................................... Test Setup .................................................................................................................... Efficiency Test Results ...................................................................................................... PCB Layout ................................................................................................................... List of Materials ............................................................................................................. 1 2 3 4 4 5 8 List of Figures 1 TPS65130EVM-839 Schematic ............................................................................................ 3 2 TPS65130 VPOS Efficiency 4 3 TPS65130 VNEG Efficiency 4 4 5 6 7 8 ............................................................................................... ............................................................................................... Top Assembly Layer ........................................................................................................ Top Layer ..................................................................................................................... Inner Layer 1 ................................................................................................................. Inner Layer 2 ................................................................................................................. Bottom Layer ................................................................................................................. 5 5 6 6 7 List of Tables 1 Typical Performance Specification Summary ............................................................................ 2 2 TPS65130EVM-839 Bill of Materials ...................................................................................... 8 Trademarks All trademarks are the property of their respective owners. 1 Introduction The TPS65130 EVM uses a TPS65130 multichannel output IC to provide both a positive and negative power rail. The goal of the EVM is to make performance evaluation of the TPS65130 easier. 1.1 Modifications To demonstrate the small size of this power solution, the EVM is designed with components having 0402 footprints where possible, and small inductors. Changing components can improve or degrade EVM performance. For example, using inductors with larger dc resistance reduces efficiency of the solution. Resistors R10 and R11 are for test purposes only. They can be replaced by a 51.1- to 100-Ω resistor and used to measure the loop gain with a loop-gain analyzer. They are not required in a real application. SLVUAW6 – December 2017 Submit Documentation Feedback TPS65130EVM-839 User's Guide Copyright © 2017, Texas Instruments Incorporated 1 Performance Specification Summary 2 www.ti.com Performance Specification Summary Table 1 provides a summary of the TPS65130EVM performance specifications. All specifications are given for an ambient temperature of 25°C. Table 1. Typical Performance Specification Summary Condition VIN 2 Voltage Range (V) Current Range (mA) MIN Type MAX MIN 2.7 3.3 5.5 TYP MAX 2000 VPOS VI = 3.3 V 7.76 8 8.24 250 VNEG VI = 3.3 V –5.15 –5 –4.85 200 TPS65130EVM-839 User's Guide SLVUAW6 – December 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Schematics www.ti.com 3 Schematics Figure 1 illustrates the EVM schematic. Figure 1. TPS65130EVM-839 Schematic SLVUAW6 – December 2017 Submit Documentation Feedback TPS65130EVM-839 User's Guide Copyright © 2017, Texas Instruments Incorporated 3 Test Setup 4 www.ti.com Test Setup The TPS65130 is designed to operate with a maximum input voltage of 5.5 V. Connect a power supply set between 2.7- and 5.5-V output voltage with a current limit set to at least 3 A. Short pins 1−2 on jumpers JP1 and JP3 to enable both rails. 5 Efficiency Test Results Figure 2 and Figure 3 show the efficiency results using this EVM: 100.00 90.00 80.00 Efficiency (%) 70.00 60.00 50.00 PSPOFF PSP ON 40.00 30.00 20.00 10.00 0.00 1 10 100 1000 Output Current (mA) Figure 2. TPS65130 VPOS Efficiency 100.00 90.00 80.00 Efficiency (%) 70.00 60.00 PSN OFF 50.00 PSN ON 40.00 30.00 20.00 10.00 0.00 1 10 100 Output Current (mA) 1000 Figure 3. TPS65130 VNEG Efficiency 4 TPS65130EVM-839 User's Guide SLVUAW6 – December 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated PCB Layout www.ti.com 6 PCB Layout Figure 4 through Figure 8 show the design of the TPS65130 EVM printed-circuit-board (PCB). The EVM has been designed using a four-layer, 35-μm (1 oz), copper-clad circuit board. All components are on the top side, and all signal traces on the top and bottom layers allow the user to easily view, probe, and evaluate the TPS65130 IC. Moving components to both sides of the PCB offers additional size reduction for space-constrained systems. The switching nodes with high-frequency noise are isolated from the noise-sensitive feedback circuitry, and careful attention has been given to the routing of high-frequency current loops. See TPS6513x Positive and Negative Output DC-DC Converter for more specific layout guidelines. To ensure that the IC provides its maximum designed output power, it is highly recommended that users follow the EVM board layout when laying out their boards, especially the separate analog and power ground paths and the small footprint, closely-spaced feedback components. Figure 4. Top Assembly Layer Figure 5. Top Layer SLVUAW6 – December 2017 Submit Documentation Feedback TPS65130EVM-839 User's Guide Copyright © 2017, Texas Instruments Incorporated 5 PCB Layout www.ti.com Figure 6. Inner Layer 1 Figure 7. Inner Layer 2 6 TPS65130EVM-839 User's Guide SLVUAW6 – December 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated PCB Layout www.ti.com Figure 8. Bottom Layer SLVUAW6 – December 2017 Submit Documentation Feedback TPS65130EVM-839 User's Guide Copyright © 2017, Texas Instruments Incorporated 7 List of Materials 7 www.ti.com List of Materials Table 2 contains the EVM bill of materials. Table 2. TPS65130EVM-839 Bill of Materials Count 8 REFDES Value Description Size Part Number MFR 0 C1 Open Capacitor, Ceramic, 6.3V, X5R, 10% 0805 8 C10 - C17 4.7uF Capacitor, Ceramic, 25V, X7R, 10% 1206 C3216X7R1E475K085AB TDK 2 C2, C3 4.7uF Capacitor, Ceramic, 10V, X7R, 10% 0805 GRM21BR71A475KA73L Murata 1 C4 0.1uF Capacitor, 16V, X7R, 10% 0402 GCM155R71C104KA55D Murata 1 C5 0.01uF Capacitor, 16V, X7R, 10% 0402 C1005X7R1C103K050BA TDK 1 C8 0.0047uF Capacitor, 50V, X7R, 5% 0402 CGA2B2X7R1H472K050BA TDK 1 C6 6.8pF Capacitor, 50V, C0G, 5% 0402 GRM1555C1H6R8CA01D Murata 1 C7 0.22uF Capacitor, 10V, X7R, 10% 0402 GRM155R71A224KE01D Murata 1 C9 12pF Capacitor, 50V, C0G, 5% 0402 C0402C120J3GACAUTO Kemet 2 D1, D2 Diode, Schottky, 1A, 20V 457-04 MBRM120ET1G On Semi 9 J1 - J9 Header, 2 pin, 100mil spacing, (36-pin strip) 0.100 x 2 TSW-102-07-G-S Samtec 4 JP1 - JP4 Header, 3 pin, 100mil spacing, (36-pin strip) 0.100 x 3 TSW-103-07-G-S Samtec 2 L1, L2 Inductor, SMT, 0.9A, 90milliohms 0.150 X 0.150 744031004 WE 1 Q1 MOSFET,P-ch, -12 V, 4 A, 51 milliOhm SOT23 Si2323DS Vishay 1 R1 100 Resistor, Chip, 1/16W, 1% 0402 Std Std 2 R2, R4 162k Resistor, Chip, 1/16W, 1% 0402 Std Std 1 R3 909k Resistor, Chip, 1/16W, 1% 0402 Std Std 1 R5 665k Resistor, Chip, 1/16W, 1% 0402 Std Std 1 R6 10k Resistor, Chip, 1/16W, 1% 0402 Std Std 4 R7, R8, R10, R11 0 Resistor, Chip, 1/16W, 5% 0402 Std Std 1 R12 51.1k Resistor, Chip, 1/16W, 5% 0402 Std Std 0 R9 Open Resistor, Chip, 1/16W, 1% 0402 1 U1 IC, Positive and Negative Output DC-DC Converter QFN24 TPS65130RGE TI 4 -- Shunt, 100 mil, Black 0.100 SPC02SYAN Sullins 4.7uH TPS65130EVM-839 User's Guide SLVUAW6 – December 2017 Submit Documentation Feedback Copyright © 2017, 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. User's acceptance of the EVM is expressly subject to the following terms. 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 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 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 a nonconforming EVM if (a) the nonconformity was 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, (b) the nonconformity resulted from User's design, specifications or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM. User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10) business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected. 2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, 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: FCC NOTICE: 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. 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. 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. 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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