Texas Instruments LM5168FEVM User manual

User’s Guide
LM5168FEVM EVM User's Guide
ABSTRACT
The LM5168FEVM is a 115-V DC/DC fly-buck regulator that employs synchronous rectification to achieve high
conversion efficiency in a small footprint. The EVM operates over a wide input voltage range of 20 V to 115
V (120-V absolute maximum) to provide a regulated 10-V output at up to 0.25 A with a 750-kHz switching
frequency. An additional 10-V floating output is provided through the fly-buck topology. The output voltage has
better than 1.5% set-point accuracy and is adjustable using an external resistor divider. The module design
uses the LM5168F-Q1 synchronous buck converter with wide input voltage range, wide duty-cycle range,
integrated high-side and low-side power MOSFETs, advanced overcurrent protection, and precision enable. With
AEC-Q100 grade 1 automotive qualification, the LM5168F-Q1 is rated to operate over a junction temperature
range of –40°C to +150°C.
Table 1-1. EVM Configuration
EVM CONVERTER IC PACKAGE
LM5168FEVM LM5168F-Q1 8-pin SO package with PowerPAD (4.89 mm × 3.90 mm)
Table of Contents
1 General TI High Voltage Evaluation User Safety Guidelines.............................................................................................. 3
2 EVM Characteristics............................................................................................................................................................... 5
3 LM5168FEVM Evaluation Module..........................................................................................................................................6
3.1 Quick Start Procedure........................................................................................................................................................6
3.2 Detailed Descriptions......................................................................................................................................................... 7
4 Schematic................................................................................................................................................................................8
5 PCB Layout..............................................................................................................................................................................9
6 Bill of Materials......................................................................................................................................................................11
7 Performance Curves.............................................................................................................................................................13
List of Figures
Figure 3-1. LM5168FEVM Top View............................................................................................................................................6
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Figure 4-1. LM5168FEVM Schematic..........................................................................................................................................8
Figure 5-1. Top Layer...................................................................................................................................................................9
Figure 5-2. Mid-Layer 1 Ground Plane........................................................................................................................................ 9
Figure 5-3. Mid-Layer 2 Routing................................................................................................................................................ 10
Figure 5-4. Bottom Layer........................................................................................................................................................... 10
Figure 7-1. Efficiency................................................................................................................................................................. 13
Figure 7-2. Load Regulation...................................................................................................................................................... 13
Figure 7-3. Load Regulation...................................................................................................................................................... 13
Figure 7-4. Typical Switching Waveform....................................................................................................................................13
Figure 7-5. Typical Start-Up Waveform......................................................................................................................................13
Figure 7-6. Typical Shutdown Waveform...................................................................................................................................13
List of Tables
Table 1-1. EVM Configuration......................................................................................................................................................1
Table 2-1. LM5168FQEVM Electrical Performance Characteristics............................................................................................ 5
Table 6-1. LM5168FEVM Bill of Materials ................................................................................................................................. 11
Trademarks
PowerPAD™ is a trademark of Texas Instruments.
All trademarks are the property of their respective owners.
Trademarks www.ti.com
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1 General TI High Voltage Evaluation User Safety Guidelines
WARNING
Always follow TI’s set-up and application instructions, including use of all interface components within their
recommended electrical rated voltage and power limits. Always use electrical safety precautions to help ensure
your personal safety and the safety of those working around you. Contact TI’s Product Information Center http://
support.ti.com for further information.
Save all warnings and instructions for future reference.
Failure to follow warnings and instructions may result in personal injury, property damage, or death due
to electrical shock and/or burn hazards.
The term TI HV EVM refers to an electronic device typically provided as an open-framed, unenclosed printed-
circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified
professional users having training, expertise, and knowledge of electrical safety risks in development and
application of high-voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas
Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
•Work Area Safety:
– Maintain a clean and orderly work area.
– A qualified observer or observers must be present any time circuits are energized.
– Effective barriers and signage must be present in the area where the TI HV EVM and its interface
electronics are energized, indicating operation of accessible high voltages can be present, for the purpose
of protecting inadvertent access.
– All interface circuits, power supplies, evaluation modules, instruments, meters, scopes, and other related
apparatus used in a development environment exceeding 50 VRMS/75 VDC must be electrically located
within a protected Emergency Power Off (EPO) protected power strip.
– Use a stable and non-conductive work surface.
– Use adequately insulated clamps and wires to attach measurement probes and instruments. No freehand
testing whenever possible.
•Electrical Safety:
As a precautionary measure, it is always a good engineering practice to assume that the entire EVM can
have fully accessible and active high voltages.
– De-energize the TI HV EVM and all its inputs, outputs, and electrical loads before performing any
electrical or other diagnostic measurements. Confirm that TI HV EVM power has been safely de-
energized.
– With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring,
measurement equipment hook-ups, and other application needs, while still assuming the EVM circuit and
measuring instruments are electrically live.
– When EVM readiness is complete, energize the EVM as intended.
WARNING
WARNING: While the EVM is energized, never touch the EVM or its electrical circuits as
they could be at high voltages capable of causing electrical shock hazard.
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•Personal Safety:
– Wear personal protective equipment, for example, latex gloves, safety glasses with side shields, or both,
or protect EVM in an adequate lucent plastic box with interlocks from accidental touch.
•Limitation for Safe Use:
– EVMs are not to be used as all or part of a production unit.
Safety and Precautions
The EVM is designed for professionals who have received the appropriate technical training, and is designed
to operate from an AC power supply or a high-voltage DC supply. Please read this user's guide and the
safety-related documents that come with the EVM package before operating this EVM.
CAUTION
!
Do not leave the EVM powered when unattended.
WARNING
Hot surface! Contact may cause burns. Do not touch!
WARNING
High Voltage! Electric shock is possible when connecting board to live wire. Board should be handled with care by a
professional.
For safety, use of isolated test equipment with overvoltage and overcurrent protection is highly recommended.
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2 EVM Characteristics
Unless otherwise specified, the following conditions apply: TA = 25ºC, IOUT1 = primary output current, IOUT2 =
secondary output current
Table 2-1. LM5168FQEVM Electrical Performance Characteristics
Parameter Test Conditions MIN TYP MAX UNITS
INPUT CHARACTERISTICS
Input voltage range, VVIN EVM input voltage operating range 20 48 115 V
Input voltage turn-on, VIN(ON)
Adjusted by EN/UVLO resistors
6.0 V
Input voltage turn-off, VIN(OFF) 5.6 V
Input voltage hysteresis, VIN(HYS) 0.4 V
Input current, no load, IIN(NL) IOUT = 0 A VIN = 48 V 13 mA
Input current, disabled, IIN(OFF) VEN/UVLO = 0 V, no EN divider VIN = 36 V 10 µA
OUTPUT CHARACTERISTICS
Output voltage, VOUT1 VIN = 48 V, IOUT1 = IOUT2 = 0A 10.0 V
Output voltage, VOUT2 VIN = 48 V, IOUT1=0 A, IOUT2 = 0A 10.0
Output current, IOUT1 VIN = 48 V, IOUT2 = 0 A 0.25 A
Output current, IOUT2 VIN = 48 V, IOUT1 = 0 A 0.25 A
Output voltage regulation, ΔVOUT1
Load regulation, VIN = 48 V IOUT1 = 0 A to 0.25
A, IOUT2 = 0 A
1 mV
Output voltage regulation, ΔVOUT2
Load regulation, VIN = 48 V IOUT1 = 0 A to 0.25
A, IOUT2 = 0 A
200
Output voltage regulation, ΔVOUT1
Load regulation, VIN = 48 V IOUT2 = 0 A to 0.25
A, IOUT1 = 0 A
7
Output voltage regulation, ΔVOUT2
Load regulation, VIN = 48 V IOUT2 = 0 A to 0.25
A, IOUT1 = 0 A
1000
Output voltage regulation, ΔVOUT1
Line regulation, IOUT1 = IOUT2
= 0 A
VIN = 24 V to 115 V 50
Output voltage regulation, ΔVOUT2
Line regulation, IOUT1 = IOUT2
= 0 A
VIN = 24 V to 115 V 750
Maximum output current from primary
output VIN = 48 V, IOUT2 = 0 A 0.27 A
Soft-start time, tSS 3.5 ms
SYSTEM CHARACTERISTICS
Switching frequency VIN = 36 V, IOUT1 = 0 A , IOUT2 = 0 A 730 kHz
Half-load efficiency IOUT1 = IOUT2 = 0.08 A VIN = 48 V 70%
Full load efficiency IOUT1 = IOUT2 = 0.125 A VIN = 48 V 76%
VIN = 60 V 72%
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3 LM5168FEVM Evaluation Module
The LM5168FEVM is configured to deliver a regulated 10-V output, 0.25 A at 750-kHz switching frequency, and
an additional 10-V floating output. The LM5168 uses a COT control architecture, with input voltage feedforward
to provide a constant frequency regulator with tightly regulated output voltage. This type of control requires
adequate voltage ripple at the FB input to achieve stable regulation. The LM5168FEVM is set up with type III
ripple injection to minimize the output voltage ripple while ensuring a stable regulator. The LM5168FEVM also
provides the option to use type I or type II ripple injection. See the LM516x-Q1 0.65/0.3-A, 120-V Step-Down
Converter w/ Fly-Buck Converter Capability Data Sheet for more information. An overall view of the LM516FEVM
and the schematic are shown in Figure 3-1 and Figure 4-1, respectively.
3.1 Quick Start Procedure
1. Connect the input voltage supply to the VIN connector (+ and –).
2. Connect the load or loads to the VOUT and the VOUT2 connectors (+ and –).
3. Set the input supply voltage to an appropriate level between 20 V to 115 V.
4. Turn on the power supply. The EVM powers up and provides VOUT = 10 V, and VOUT2 = 10 V.
See Figure 3-1 for the location of the connectors.
CAUTION
Caution Hot surface.
Contact may cause burns.
Do not touch.
Figure 3-1. LM5168FEVM Top View
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3.2 Detailed Descriptions
This section describes the connectors and the test points on the EVM and how to properly connect, set up, and
use the LM5168FEVM EVM. See Figure 3-1 for location of connectors and jumpers.
VOUT Output voltage of the converter
VOUT screw terminal connector. Apply load to this connector (+ and –). The VOUT test point is
used to monitor output voltage.
VOUT2 Secondary output voltage of the converter
VOUT2 screw terminal connector. One side of this output is connected to the primary ground
(GND) through a tie resistor, Rtie (R12). This resistor can be removed for a true floating voltage
source. Apply load to this connector (+ and –).
GND Ground of the converter
GND and GNDS test points. Used as ground test points for the EVM.
VIN Input voltage to the converter
VIN screw terminal connector. Apply input voltage to this connector (+ and –). The VIN test point is
used to monitor input voltage.
VINEMI Input voltage to input filter of the converter
If it is desired to use the built-in EMI filter on the EVM, then connect the input supply to the VINEMI
screw terminal connector (+ and –).
Input
Filter
EMI mitigation
An input EMI filter is provided on the EVM. Note L2 and C18 are not populated and must be
installed for the EMI filter to operate. Also, note that the maximum input voltage to the filter is 100
VDC.
EN/UVLO
Jumper
Set EN/UVLO pin options
Use this jumper to enable/disable the EVM. The resistors connected to this pin set the input UVLO
thresholds. Input UVLO thresholds are set to approximately 6 V and 5.6 V. These levels can be
changed by changing the values of R5 and R7. For external control of the device, these resistors
should be removed and the control signal applied to the center pin of the header. Note that for
accurate shutdown current measurement, these resistors must also be removed and the EN input
(center pin) grounded.
1. Jumper open (default setup): Device starts up and shuts down with UVLO.
2. Center pin connected to ON: Device starts up and shuts down without UVLO.
3. Center pin connected to OFF: Device is off.
PGOOD The PGOOD header used as a test point to monitor the power-good indicator. This flag indicates
whether the output voltage has reached its regulation level. PGOOD is an open-drain output that is
tied to VOUT through a 100-kΩ, resistor R10.
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4 Schematic
Figure 4-1. LM5168FEVM Schematic
Schematic www.ti.com
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5 PCB Layout
Figure 5-1 through Figure 5-4 show the board layout for the LM5168FEVM.
The 8-pin SO PowerPAD™ package offers an exposed thermal pad, which must be soldered to the copper
landing on the PCB for optimal thermal performance. The PCB consists of a 4-layer design. There are 2-oz
copper planes on the top and bottom and 1-oz copper mid-layer planes to dissipate heat with an array of thermal
vias under the thermal pad to connect to all four layers.
Figure 5-1. Top Layer
Figure 5-2. Mid-Layer 1 Ground Plane
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Figure 5-3. Mid-Layer 2 Routing
Figure 5-4. Bottom Layer
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6 Bill of Materials
Table 6-1. LM5168FEVM Bill of Materials
DESIGNATOR QUANTITY DESCRIPTION PART NUMBER MANUFACTURER
C1 1 CAP, CERM, 0.1 μF, 250 V, ±10%, X7T,
0805
C2012X7T2E104K125AA TDK
C3 1 CAP, CERM, 2200 pF, 50 V, ±10%,
X7R, AEC-Q200 Grade 1, 0402
GCM155R71H222KA37D MuRata
C4 1 CAP, CERM, 3300 pF, 100 V, ±10%,
X7R, AEC-Q200 Grade 1, 0603
CGA3E2X7R2A332K080AA TDK
C6, C7, C24 3 CAP, CERM, 22 µF, 25 V, ±10%, X5R,
AEC-Q200 Grade 3, 1210
GRT32ER61E226KE13L MuRata
C9, C10, C22, C23 4 Cap Ceramic 1-μF 250-V X7T 10% Pad
SMD 1812 +125°C Automotive T/R
CGA8P3X7T2E105K250KE TDK
C11 1 CAP, CERM, 56 pF, 50 V, ±5%, C0G/
NP0, 0603
C0603C560J5GACTU Kemet
C16, C17 2 CAP, CERM, 4.7 μF, 100 V, ±10%, X7S,
AEC-Q200 Grade 1, 1210
CGA6M3X7S2A475K200AB TDK
C19, C20 2 CAP, CERM, 0.1 µF, 100 V, ±10%, X7R,
AEC-Q200 Grade 1, 0603
HMK107B7104KAHT Taiyo Yuden
C21 1 Aluminum Electrolytic Capacitors Radial
33-μF 20% 160-V, Can - SMD - 2000
Hrs at 125°C
ULT2C330MNL1GS Nichicon
D1 1 Diode, Schottky, 150 V, 1 A,
PowerDI123
DFLS1150-7 Diodes Inc.
J2, J3, J7, J8 4 Terminal Block, 3.5mm Pitch, 2 × 1, TH ED555/2DS On-Shore Technology
J6 1 Header, 100 mil, 2 × 1, Gold, TH TSW-102-07-G-S Samtec
L3 1 Ferrite Bead, 2000 Ω at 100 MHz, 1.2
A, 1210
FBMH3225HM202NT Taiyo Yuden
R2 1 RES, 0, 5%, 0.063 W, AEC-Q200
Grade 0, 0402
CRCW04020000Z0ED Vishay-Dale
R4 1 RES, 118 k, 1%, 0.1 W, 0603 RC0603FR-07118KL Yageo
R5 1 RES, 1.00 M, 1%, 0.1 W, 0603 RC0603FR-071ML Yageo
R6 1 RES, 453 k, 1%, 0.1 W, 0603 RC0603FR-07453KL Yageo
R7 1 RES, 332 k, 1%, 0.1 W, 0603 RC0603FR-07332KL Yageo
R8 1 RES, 33.2 k, 1%, 0.1 W, 0603 RC0603FR-0733K2L Yageo
R9 1 RES, 61.9 k, 1%, 0.1 W, 0603 RC0603FR-0761K9L Yageo
R10 1 RES, 100 k, 1%, 0.1 W, 0402 ERJ-2RKF1003X Panasonic
R11 1 RES, 1.00 k, 1%, 0.125 W, AEC-Q200
Grade 0, 0805
CRCW08051K00FKEA Vishay-Dale
R12 1 RES, 0, 5%, 0.1 W, AEC-Q200 Grade
0, 0603
CRCW06030000Z0EA Vishay-Dale
T1 1 Power inductor, coupled, shielded, 20%
tol, RoHS, halogen-free
LPD8035V-333MRC Coilcraft
TP1 1 Test Lead clips and hooks, SMT S1751-46 Harwin
TP2, TP3, TP4 3 Terminal, Turret, TH, Triple 1598-2 Keystone
U1 1 IC LM5168FQDDAR Texas Instruments
C2 0 CAP, CERM, 1000 pF, 200 V, ±10%,
X7R, 0603
GRM188R72D102KW07D MuRata
C5 0 CAP, AL, 100 µF, 25 V, ±20%, SMD UWT1E101MCL1GS Nichicon
C12, C13 0 CAP, CERM, 22 μF, 25 V, ±10%, X7R,
AEC-Q200 Grade 1, 1210
TMK325B7226KMHT Taiyo Yuden
C14 0 CAP, CERM, 0.01 µF, 100 V, ±10%,
X8R, AEC-Q200 Grade 0, 0603
CGA3E2X8R2A103K080AD TDK
C15 0 CAP, CERM, 1000 pF, 50 V, ±5%, X7R,
AEC-Q200 Grade 1, 0603
C0603C102J5RACAUTO Kemet
C18 0 CAP, CERM, 4.7 μF, 100 V, ±10%, X7S,
AEC-Q200 Grade 1, 1210
CGA6M3X7S2A475K200AB TDK
C25 0 CAP, CERM, 22 µF, 25 V, ±10%, X5R,
AEC-Q200 Grade 3, 1210
GRT32ER61E226KE13L MuRata
J1, J5 0 Header, 100 mil, 2 × 1, Gold, TH TSW-102-07-G-S Samtec
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Table 6-1. LM5168FEVM Bill of Materials (continued)
DESIGNATOR QUANTITY DESCRIPTION PART NUMBER MANUFACTURER
J4 0 Header, 100 mil, 3 × 1, Gold, TH HTSW-103-07-G-S Samtec
L2 0 Inductor, Shielded Drum Core, Ferrite,
15 μH, 1.8 A, 0.05 Ω, AEC-Q200 Grade
1, SMD
MSS7341T-153MLB Coilcraft
R1 0 RES, 1.0, 5%, 0.1 W, AEC-Q200 Grade
0, 0603
CRCW06031R00JNEA Vishay-Dale
R3 0 RES, 0.2, 1%, 1 W, 2010 CSRN2010FKR200 Stackpole Electronics Inc
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7 Performance Curves
Unless otherwise specified the following condition apply: TA = 25ºC, IOUT1 = primary output current, IOUT2 =
secondary output current.
Output Current (A)
Efficiency (%)
0.015 0.03 0.045 0.06 0.075 0.09 0.105 0.12 0.135 0.15
0
10
20
30
40
50
60
70
80
90
100
48V
60V
80V
Output Current = IOUT1 = IOUT2
Figure 7-1. Efficiency
Primary Output Current (A)
Primary Output Voltage (V)
Secondary Output Voltage (V)
0 0.05 0.1 0.15 0.2 0.25 0.3
10.156 10
10.1562 10.1
10.1564 10.2
10.1566 10.3
10.1568 10.4
10.157 10.5
Primary Output Voltage
Secondary Output Voltage
IOUT2 = 0 A VIN = 48 V
Figure 7-2. Load Regulation
Secondary Output Current (A)
Primary Output Voltage (V)
Secondary Output Voltage (V)
0 0.05 0.1 0.15 0.2 0.25
10.155 9.2
10.156 9.3
10.157 9.4
10.158 9.5
10.159 9.6
10.16 9.7
10.161 9.8
10.162 9.9
10.163 10
10.164 10.1
10.165 10.2
Primary Output
Secondary Output
IOUT1 = 0 A VIN = 48 V
Figure 7-3. Load Regulation
20V/div
1µs/div
0
IOUT = 0 A VIN = 48 V
Figure 7-4. Typical Switching Waveform
800µs/div
Primary Output
5V/div
Secondary Output
5V/div
Power Good
10V/div
EN, 10V/div
0
0
0
0
VIN = 48 V IOUT = IOUT2 = 100 mA
Figure 7-5. Typical Start-Up Waveform
2ms/div
Primary Output
5V/div
Secondary Output
5V/div
Power Good
10V/div
EN, 10V/div
VIN = 48 V IOUT = IOUT2 = 100 mA
Figure 7-6. Typical Shutdown Waveform
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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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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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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

IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
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, regulatory 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 reproduction and display of these resources is prohibited. No license
is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you
will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these
resources.
TI’s products are provided subject to TI’s Terms of Sale 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.
TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2021, Texas Instruments Incorporated

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