Texas Instruments TPS552882EVM-400kHZ User manual

User’s Guide
TPS552882EVM-400kHz Evaluation Module
ABSTRACT
This user's guide describes the characteristics, operation, and the use of the TPS552882EVM-400kHz
evaluation module (EVM). The EVM contains the TPS552882 device, which is a high-performance, high-
efficiency synchronous buck-boost converter which integrates two 16-A MOSFETs at the boost leg. The user's
guide includes EVM specifications, recommended test setup, test result, schematic diagram, bill of materials,
and the board layout.
Table of Contents
Trademarks.................................................................................................................................................................................1
1 Introduction.............................................................................................................................................................................2
1.1 Performance Specification................................................................................................................................................. 2
1.2 Modification........................................................................................................................................................................ 2
2 Connector, Test Point and Jumper Descriptions.................................................................................................................2
2.1 Connector and Test Point Descriptions.............................................................................................................................. 2
2.2 Jumper Configuration.........................................................................................................................................................2
3 Test Procedure........................................................................................................................................................................ 3
4 Schematic, Bill of Materials, and Board Layout...................................................................................................................4
4.1 Schematic.......................................................................................................................................................................... 4
4.2 Bill of Materials...................................................................................................................................................................5
4.3 Board Layout......................................................................................................................................................................7
5 Revision History......................................................................................................................................................................9
List of Figures
Figure 4-1. TPS552882EVM-400kHz Schematic........................................................................................................................ 4
Figure 4-2. TPS552882EVM-400kHz Top-Side Layout............................................................................................................... 7
Figure 4-3. TPS552882EVM-400kHz Inner Layer1..................................................................................................................... 7
Figure 4-4. TPS552882EVM-400kHz Inner Layer2..................................................................................................................... 8
Figure 4-5. TPS552882EVM-400kHz Bottom-Side Layout..........................................................................................................8
List of Tables
Table 1-1. Performance Specification Summary..........................................................................................................................2
Table 2-1. Connectors and Test Points........................................................................................................................................ 2
Table 4-1. Bill of Materials............................................................................................................................................................5
Trademarks
All trademarks are the property of their respective owners.
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1 Introduction
1.1 Performance Specification
Table 1-1 provides a summary of the TPS552882 EVM performance specifications. All specifications are given
for an ambient temperature of 25°C.
Table 1-1. Performance Specification Summary
Parameter Test Condition Value Unit
Input Voltage N/A 2.7 - 36 V
Output Voltage N/A 0.8 - 20 V
Maximum Output Current
VIN ≥ 2.7 V, VOUT = 5 V
5 A
VIN ≥ 5 V, VOUT = 9 V
VIN ≥ 9 V, VOUT = 15 V
VIN ≥ 12V, VOUT = 20 V
Default Switching Frequency N/A 400 KHz
1.2 Modification
The printed-circuit board (PCB) for this EVM is designed to accommodate some modifications by the user. The
external component can be changed according to the real application.
2 Connector, Test Point and Jumper Descriptions
This section describes how to properly connect, set up, and use the TPS552882EVM-400kHz.
2.1 Connector and Test Point Descriptions
This EVM includes I/O connectors and test points as shown in Table 2-1. The power supply must be connected
to input connectors, J1 and J2. The load must be connected to output connectors, J3 and J4.
Table 2-1. Connectors and Test Points
Reference
Designator
Description
J1 Input voltage positive connection
J2 Input voltage return connection
J3 Output voltage connection
J4 Output voltage return connection
2.2 Jumper Configuration
2.2.1 JP1 (ENABLE)
The JP1 jumper enables the device. By default, this jumper is set to the ON position. Put this jumper in the OFF
position to disable the output.
2.2.2 JP2(SYNC)
The JP2 jumper is for the frequency dithering selection. Placing a jumper across JP2 disables the frequency
dithering function. Left JP2 opens when using frequency dithering function.
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3 Test Procedure
Use the following steps for the test procedure:
1. Set the power supply current limit to 15 A. Set the power supply to something around 12 V. Turn off the power
supply. Connect the positive output of the power supply to J1 and the negative output to J2.
2. Connect the load to J3 for the positive connection and J4 for the negative connection.
3. Turn on the power supply.
4. Slowly increase the load while monitoring the output voltage between J3 and J4. It must remain in regulation
when the load current is lower than 5 A.
5. Slowly sweep the input voltage from 5 V to 20 V. The output voltage must remain in regulation when the load
current is lower than the maximum load current specified in Table 2-1.
6. Turn off the load, turn off the power supply. Then turn on the load to discharge the output capacitors.
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4 Schematic, Bill of Materials, and Board Layout
This section provides the TPS552882EVM-400kHz schematic, bill of materials (BOM), and board layout.
4.1 Schematic
Figure 4-1 shows the EVM schematic.
GND
1.00
R5
1.00
R6
GND
J1
GND
AGND
Low
High
EN
AGNDAGNDAGND
J3
J4
GND
0.1uF
C13
IOSN+ IOSN-
IOSN+
IOSN-
VOUT
AGND
FB
AGND
FB
J2
VCC
0.1uF
C18
AGND
1
2
3
JP1
EN1
SW1
SW2
VCC
COMP
ILIM
CDC
SN+
SN-
EN
Vin
GND
1
R17
GND
11.3k
R2
102k
R1
AGND
GND
1
2
JP2
AGND
SYNC
SYNC
49.9k
R7
0.1uF
C12
AGND
1
2
J7
VCC_EXT
GND
147k
R13
4.7uH
L1
150k
R11
20.0k
R9
10µF
C2
10µF
C3
68uF
C1
10m
R4
4
7,8 1,2,3
5,6, Q1
IPZ40N04S5L4R8ATMA1
NT1
NT2
NT3
AGND
4
7,8
1,2,3
5,6,
Q2
IPZ40N04S5L4R8ATMA1
TP7
220uF
C10
0.01uF
C23
1
R18
GND
4.7µF
C14
1µF
C17
1µF
C5
1µF
C11
TP8TP1
TP2
TP3
TP4
TP6
1µF
C4
10µF
C9
10µF
C8
10µF
C7
10µF
C6 49.9
R3
TP5
100pF
C16
SYNC
AGND
2.7 - 36V
0.8-20V/5A
0.1µF
C19
0.1µF
C20
115k
R14
PG
CC
__
1
2
J5
1
2
J6
AGND
VCC
AGND
AGND
CC
AGND
PG
__
102k
R16
102k
R15
0
R8
0.01uF
C15
15.0k
R10
DR1L
1
DR1H
2
VIN
3
EN
4
PG
5
CC
6
DITH/SYNC
7
ILIM 17
PGND 9
MODE
15
VOUT 11
ISP 12
ISN 13
FB 14
AGND 10
CDC 16
FSW
8COMP 18
VCC 19
BOOT2 20
SW2 21
BOOT1 22
SW1 23
PGND 24
SW2 25
VOUT 26
TPS552882RPM
U1
2.2nF
C22
2.2nF
C21
0
R12
Figure 4-1. TPS552882EVM-400kHz Schematic
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4.2 Bill of Materials
Table 4-1 lists the EVM bill of materials.
Table 4-1. Bill of Materials
Designator QTY Value Description Package Part Number Manufacturer
C1 1 68uF CAP, Polymer Hybrid, 68 uF, 50 V, ±20%, 30 ohm, 8x10 SMD 8x10 EEHZA1H680P Panasonic
C2, C3 2 10uF CAP, CERM, 10 µF, 75 V,±20%, X7R, AEC-Q200 Grade 1, 1210 1210 CGA6P1X7R1N106M250A
C
TDK
C4, C5, C11,
C17
4 1uF CAP, CERM, 1 µF, 50 V,±20%, X5R, AEC-Q200 Grade 3, 0603 0603 GRT188R61H105ME13D MuRata
C6, C7, C8, C9 4 10uF CAP, CERM, 10 µF, 50 V,±10%, X7R, AEC-Q200 Grade 1, 1206 1206 CGA5L1X7R1H106K160AC TDK
C10 1 220uF CAP, Polymer Hybrid, 220 uF, 25 V, ±20%, 27 ohm, 8x10 SMD 8x10 EEHZA1E221P Panasonic
C12, C13, C18 3 0.1uF CAP, CERM, 0.1 uF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 0402 0402 CGA2B3X7R1H104K050BB TDK
C14 1 4.7uF CAP, CERM, 4.7 µF, 16 V,±10%, X5R, AEC-Q200 Grade 3, 0603 0603 GRT188R61C475KE13D MuRata
C15, C23 2 0.01uF CAP, CERM, 0.01 uF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 0402 0402 CGA2B3X7R1H103K050BB TDK
C16 1 100pF CAP, CERM, 100 pF, 50 V, ±5%, C0G/NP0, AEC-Q200 Grade 1, 0402 0402 CGA2B2C0G1H101J050BA TDK
C19, C20 2 0.1µF ±10% 50V Ceramic Capacitor X8L 0603 (1608 Metric) 0603 GCM188L81H104KA57D Murata Electronics
North America
J1, J2, J3, J4 4 Terminal, Turret, TH, Double Keystone1502-
2
1502-2 Keystone
J5, J6, J7, JP2 4 Header, 100mil, 2x1, Tin, TH Header, 2 PIN,
100mil, Tin
PEC02SAAN Sullins Connector
Solutions
JP1 1 Header, 100mil, 3x1, Tin, TH Header, 3 PIN,
100mil, Tin
PEC03SAAN Sullins Connector
Solutions
L1 1 4.7uH Inductor, Shielded, Composite, 4.7 uH, 24 A, 0.01 ohm, SMD Inductor,
11.3x10x10mm
XAL1010-472MEB Coilcraft
Q1, Q2 2 40V MOSFET, N-CH, 40 V, 40 A, AEC-Q101, SON-8 SON-8 IPZ40N04S5L4R8ATMA1 Infineon
Technologies
R1, R15, R16 3 102k RES, 102 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402102KFKED Vishay-Dale
R2 1 11.3k RES, 11.3 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040211K3FKED Vishay-Dale
R3 1 49.9 RES, 49.9, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040249R9FKED Vishay-Dale
R4 1 10 mOhms ±1% 1W Chip Resistor 1206 (3216 Metric) Automotive AEC-Q200,
Current Sense, Moisture Resistant Metal Element
1206 CRF1206-FZ-R010ELF Bourns
R5, R6 2 1.00 RES, 1.00, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW06031R00FKEA Vishay-Dale
R7 1 49.9k RES, 49.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040249K9FKED Vishay-Dale
R8 1 0 RES, 0, 5%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW04020000Z0ED Vishay-Dale
R9 1 20.0k RES, 20.0 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040220K0FKED Vishay-Dale
R10 1 15.0k RES, 15.0 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040215K0FKED Vishay-Dale
R11 1 150k RES, 150 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402150KFKED Vishay-Dale
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Table 4-1. Bill of Materials (continued)
Designator QTY Value Description Package Part Number Manufacturer
R12 1 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW06030000Z0EA Vishay-Dale
R13 1 147k RES, 147 k, 1%, 0.1 W, 0603 0603 RC0603FR-07147KL Yageo
R14 1 115k RES, 115 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402115KFKED Vishay-Dale
TP1, TP2, TP3,
TP4, TP5, TP6,
TP7, TP8
8 Test Point, Miniature, Orange, TH Orange
Miniature
Testpoint
5003 Keystone
U1 1 36-V, 16-A Buck-boost Converter VQFN-HR26 TPS552882RPM Texas Instruments
C21, C22 0 2200pF CAP, CERM, 2200 pF, 250 V, ±10%, X7R, 0805 0805 GRM21AR72E222KW01D MuRata
R17, R18 0 1.0 RES, 1.0, 5%, 0.5 W, 1206 1206 CRM1206-JW-1R0ELF Bourns
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4.3 Board Layout
Figure 4-2 through Figure 4-5 illustrate the EVM board layouts.
Figure 4-2. TPS552882EVM-400kHz Top-Side Layout
Figure 4-3. TPS552882EVM-400kHz Inner Layer1
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Figure 4-4. TPS552882EVM-400kHz Inner Layer2
Figure 4-5. TPS552882EVM-400kHz Bottom-Side Layout
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5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (June 2020) to Revision A (November 2020) Page
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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.
2Limited 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.
WARNING
Evaluation Kits 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 shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

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2
3Regulatory 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.

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3
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. 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,
2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
3. 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. 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。
2. 実験局の免許を取得後ご使用いただく。
3. 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.

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4EVM 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.

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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.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2019, Texas Instruments Incorporated

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AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you
permission to use these resources only for development of an application that uses the TI products described in the resource. Other
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TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on
ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable
warranties or warranty disclaimers for TI products.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2020, Texas Instruments Incorporated