Texas Instruments LMR36503RFEVM User manual

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LMR36503RFEVM User’s Guide
User's Guide
SNVU672–February 2020
LMR36503RFEVM User’s Guide
The Texas Instruments LMR36503RFEVM evaluation module help designers evaluate the operation and
performance of the LMR36503 wide-input buck converters. The LMR36503 is an easy-to-use synchronous
step-down DC/DC converter capable of driving up to 0.3 A of load current from an input voltage of up to
65 V. The LMR36503RFEVM features an output voltage of 3.3 V or 5 V and a switching frequency of 1
MHz. See the LMR36503 3-V–65-V, 0.3-A Ultra-Small Synchronous Buck Converter with Ultra-Low IQdata
sheet for additional features, detailed descriptions, and available options.
Table 1. Device and Package Configurations
EVM U1 FREQUENCY SPREAD SPECTRUM CURRENT PIN 1 TRIM
LMR36503RFEVM LMR36503RFRPE 1000 kHz Disabled 0.3 A RT with FPWM
Figure 1. LMR36503RFEVM Board

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LMR36503RFEVM User’s Guide
Contents
1 Setup .......................................................................................................................... 3
2 Operation ..................................................................................................................... 5
3 Schematic..................................................................................................................... 6
4 Board Layout ................................................................................................................. 7
5 Bill of Materials............................................................................................................... 9
List of Figures
1 LMR36503RFEVM Board................................................................................................... 1
2 EVM Board Connections.................................................................................................... 3
3 Jumper Locations............................................................................................................ 4
4 LMR36503RFEVM Schematic ............................................................................................. 6
5 Top View of EVM ............................................................................................................ 7
6 EVM Top Copper Layer..................................................................................................... 7
7 EVM Mid Layer One......................................................................................................... 7
8 EVM Mid Layer Two......................................................................................................... 8
9 EVM Bottom Copper Layer................................................................................................. 8
List of Tables
1 Device and Package Configurations ...................................................................................... 1
2 Bill Of Materials .............................................................................................................. 9
Trademarks
All trademarks are the property of their respective owners.

Load
(+)
(-)
DMM
(-)
(+) DMM
(-)
(+)
Input
Supply
(+)
(-)
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LMR36503RFEVM User’s Guide
1 Setup
This section describes the test points and connectors on the EVM and how to properly connect, set up,
and use the LMR36503RFEVM.
1.1 Test Points
The test points on the top of the board can be used for connecting to the input and output of the EVM.
See Figure 2 for typical test setup. The functions of the test points connections are:
•VIN_EMI — Input supply to EVM including an EMI filter. Connect to a suitable input supply. Connect at
this point for conducted EMI test.
•GND — Ground connection for the input supply as well as test points for ground connection
•VIN — Input supply to the IC. Can be connected to DMM to measure input voltage after EMI filter
•VOUT — Output voltage test point of EVM. Can be connected to a desired load
•EN — This test point is connected to the EN pin. By default, there is a pullup resistor R2 (RENT) to
VIN to enable the IC.
•PGOOD — This test point is connected to the PGOOD pin from the IC. It is an open-drain output of the
PGOOD pin. Can be tied to external supply through a pullup resistor or left open
•SYNC — In a MODE/SYNC trim part, this test point is connected to the SYNC pin of the IC. Can be
connected to an external clock to synchronize the IC. Make sure R4 (RMODE) is installed and R5 (RT)
is not installed. In a RT trim part, this test point is connected to the RT pin of the IC when the R4
(RMODE) is installed.
•VCC — This test point is connected to the VCC pin.
•SW — This test point is connected to the switch node.
Figure 2. EVM Board Connections

MODE/RT SELECTION
JUMPER
ENABLE OFF
JUMPER
PGOOD SELECTION
JUMPER
VOUT SELECTION
JUMPER
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1.2 Jumpers
See Figure 3 for jumper locations.
•JEN - This jumper allows the ENABLE input to be connected to GND in order to disable the IC. By
default, this jumper is left open since there is a pullup resistor R2 (RENT) to VIN to enable the IC.
•JPGOOD - Use this jumper to select how the PGOOD pin can be connected. A jumper can be used to
connect pin 2 and 3. In this configuration, the PGOOD pin will be pulled up to VOUT through R9
(RPGOOD) with a value of 100 kΩ. By default, this jumper is left open.
•JMODE/RT - Use this jumper to select the mode of operation in a MODE/SYNC trim part.
Connecting a jumper between pin 1 and 2 cause the IC to operate in PFM (Pulse Frequency
Modulation) mode for a higher efficiency at light load. A jumper between pin 2 and pin 3 causes the IC
to operate in FPWM mode (Forced Pulse Width Modulation) mode. By default, the jumper is connected
between pin 1 and 2.
In an RT trim part, connecting this jumper from pin 1 and 2 sets the switching frequency to 2.2 MHz
and connecting this jumper from pin 2 and 3 sets the switching frequency to 1 MHz. See the
LMR36503 3-V–65-V, 0.3-A Ultra-Small Synchronous Buck Converter with Ultra-Low IQdata sheet for
more information on switching frequency configuration.
•JVOUT This jumper can be used to select the output voltage on the EVM. Leaving the jumper open
sets the EVM output voltage to 3.3 V whereas adding a jumper sets the output voltage on the EVM to
be 5 V.
Figure 3. Jumper Locations

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2 Operation
2.1 Quick Start
1. Connect the voltage supply between the VIN_EMI and GND test points.
2. Connect the load between the VOUT and GND test points.
3. Set the supply voltage at an appropriate level between 5.5 V to 65 V. Set the current limit of the supply
to an appropriate level.
4. Turn on the power supply. With the default configuration, the EVM powers up and provides VOUT = 3.3
V.
5. Monitor the output voltage. The maximum load current must be 0.3 A with the LMR36503 device.

0.1uF
C2
CIN2
1uF
C4
CVCC
FB
PGOOD
EN
TP3
GND
49.9
R6
RINJ
TP8
GND
1uF
C6
Cd
4.99
R8
Rd
0.1uF
C7
Cfilt
DNP
TP6
VIN_EMI
TP7
GND
22uF
C8
CBulk
1 2 3
J2
JMODE/RT
1 2 3
J1
JPGOOD
100k
R9
RPGOOD
PGOOD
ENVCC
RT
GND
GND
VOUT
GND
SW
BOOT
GND
VCC
RT
GND
GND
GND
VIN
TP4
VOUT
VOUT
TP1
VOUT
TP5
VIN
L2
1
2
J3
JEN
100k
R1
RENB
DNP
100k
R2
RENT
TP10
SYNC
TP11
EN
TP9
PGOOD
TP2
GND
VIN = 5.5V - 65V
2.2uF
C1
CIN1
2.2uF
C9
CIN3
0.1uF
C11
Cfilt1
0.1uF
C12
Cfilt2
VINEMI
100k
R3
RFBT
GND
22uF
C5
COUT1
22uF
C10
COUT2
DNP
10pF
C13
CFF
DNP
0
R4
RMODE
VOUT = 3.3V
B
A
VIN
VINEMI
GND
VOUT
VOS
AGND
TP13
VCC
TP12
SW
TP14
GND
43.2k
R7
RFBB1
59.0k
R10
RFBB2
1
2
J4
JVOUT
RT
1
PGOOD
2
EN/UVLO
3
VIN
4
SW 5
BOOT 6
VCC
7
FB 8
GND 9
LMR36503RFRPET
U1
39.2k
R5
RT
DNP
47uH
L1
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
H
J
K
L
M
N
TOP BOT
EC1
305-024-521-201
0.1uF
C3
CB
SH-J1
SNT-100-BK-G
Assembly Note
ZZ5
Place SH-J1 on J2 (JMODE/RT) in pin 2 and 3
NT1
Net-Tie
VOS
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3 Schematic
Figure 4. LMR36503RFEVM Schematic

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4 Board Layout
Figure 5. Top View of EVM
Figure 6. EVM Top Copper Layer
Figure 7. EVM Mid Layer One

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Figure 8. EVM Mid Layer Two
Figure 9. EVM Bottom Copper Layer

www.ti.com Bill of Materials
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5 Bill of Materials
Table 2. Bill Of Materials
DESIGNATOR COMMENT DESCRIPTION MANUFACTURER PART NUMBER QUANTITY
C1, C9 CIN1, CIN3 CAP, CERM, 2.2 µF, 100 V, ±10%, X7S, AEC-Q200
Grade 1, 1206 TDK CGA5L3X7S2A225K160AB 2
C2 CIN2 CAP, CERM, 0.1 µF, 100 V, ±10%, X7R, 0603 MuRata GRM188R72A104KA35D 1
C3 CB CAP, CERM, 0.1 µF, 16 V, ±10%, X7R, 0402 MuRata GCM155R71C104KA55D 1
C4 CVCC CAP, CERM, 1 µF, 16 V, ±10%, X7R, 0603 Wurth Elektronik 885012206052 1
C5 COUT1 CAP, CERM, 22 µF, 10 V, ±10%, X7R, AEC-Q200
Grade 1, 1206 MuRata GCM31CR71A226KE02 1
C6 Cd CAP, CERM, 1 µF, 100 V, ±10%, X7R, 1206 TDK C3216X7R2A105K160AA 1
C7 Cfilt CAP, CERM, 0.1 µF, 100 V, ±10%, X7R, AEC-Q200
Grade 1, 0805 TDK CGA4J2X7R2A104K125AA 0
C8 CBulk CAP, AL, 22 µF, 100 V, ±20%, 1.3 Ω, AEC-Q200 Grade
2, SMD Panasonic EEE-FK2A220P 1
C10 COUT2 CAP, CERM, 22 µF, 10 V, ±10%, X7R, AEC-Q200
Grade 1, 1206 MuRata GCM31CR71A226KE02 0
C11, C12 Cfilt1, Cfilt2 CAP, CERM, 0.1 µF, 100 V, ±10%, X7R, AEC-Q200
Grade 1, 0805 TDK CGA4J2X7R2A104K125AA 2
C13 CFF CAP, CERM, 10 pF, 50 V, ±5%, C0G/NP0, AEC-Q200
Grade 1, 0402 TDK CGA2B2C0G1H100D050BA 0
FID1, FID2,
FID3, FID4,
FID5, FID6 Fiducial Fiducial mark. There is nothing to buy or mount. N/A N/A 0
J1, J2 JPGOOD,
JMODE/RT Header, 100 mil, 3x1, Gold, TH Samtec HTSW-103-07-G-S 2
J3, J4 JEN, JVOUT Header, 100 mil, 2x1, Gold, TH Samtec HTSW-102-07-G-S 2
L1 MSS6132-473MLB Inductor, Shielded Drum Core, Ferrite, 47 µH, 0.93 A,
0.38 Ω, SMD Coilcraft MSS6132-473MLB 1
L2 FBMH3225HM601
NT Ferrite Bead, 600 Ωat 100 MHz, 3 A, 1210 Taiyo Yuden FBMH3225HM601NT 1
LBL1 THT-14-423-10 Thermal Transfer Printable Labels, 0.650" W x 0.200" H
- 10 000 per roll Brady THT-14-423-10 1
R1 RENB RES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW0402100KFKED 0
R2, R3 RENT, RFBT RES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW0402100KFKED 2
R4 RMODE RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 Vishay-Dale CRCW06030000Z0EA 1
R5 RT RES, 39.2 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW040239K2FKED 0
R6 RINJ RES, 49.9, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW040249R9FKED 1
R7 RFBB1 RES, 43.2 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW040243K2FKED 1
R8 Rd RES, 4.99, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 Vishay-Dale CRCW06034R99FKEA 1
R9 RPGOOD RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 Vishay-Dale CRCW0603100KFKEA 1
R10 RFBB2 RES, 59.0 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 Vishay-Dale CRCW040259K0FKED 1
SH-J1 SNT-100-BK-G Shunt, 100mil, Gold plated, Black Samtec SNT-100-BK-G 1
TP1, TP5 VOUT, VIN Test Point, Miniature, SMT Keystone 5015 2
TP2, TP14 GND Test Point, Miniature, Black, TH Keystone 5001 2
TP3, TP4, TP6,
TP7, TP8
GND, VOUT,
VIN_EMI, GND,
GND Terminal, Turret, TH, Double Keystone 1502-2 5
TP9, TP10,
TP11 PGOOD, SYNC, EN Test Point, Miniature, White, TH Keystone 5002 3
TP12, TP13 SW, VCC Test Point, Miniature, Red, TH Keystone 5000 2
U1 LMR36503RFRPE
TLMR36503 Wide Input 65-V Synchronous, DC-DC Buck Converter, RPE0009A (VQFN-9) Texas Instruments LMR36503RFRPET 1

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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4
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.

www.ti.com
5
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
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Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2020, Texas Instruments Incorporated