User's Guide
SNVA159A – June 2007 – Revised April 2013
AN-1467 LP5551 Evaluation Board
1
LP5551 Overview
The LP5551 is a PWI 1.0 compliant energy management unit for reducing power consumption of standalone mobile phone processors such as base-band or applications processors.
The LP5551 contains two advanced, digitally controlled switching regulators for supplying variable voltage
to processor core and memory. Two regulators provide P- and N- well biasing for threshold scaling
applications. The device also integrates four programmable LDO-regulators for powering I/O, PLLs and
maintaining memory retention in sleep-mode.
The device is controlled via the PWI 1.0 open-standard interface. The LP5551 operates cooperatively with
PowerWise™ technology compatible processors to optimize supply voltages adaptively over process and
temperature variations or dynamically using frequency/voltage pre-characterized look-up tables and
provides P- and N-well biasing for threshold scaling.
2
Evaluation Board Overview
The LP5551 evaluation board can be operated standalone or from a motherboard such as the PowerWise
Evaluation Kit (PEK) or USB interface board.
The evaluation board ships with the USB interface board and a graphical user interface (GUI) to easily
control the features of the LP5551 from a PC.
The LP5551 is configured to operate with the following conditions:
Parameter
Default
Voltage
Programming
Range
IOUT
VBATT
3.6 V
VAVS
VDVS
1.2 V
0.6 - 1.2 V
300 mA
1.2 V
0.6 - 1.2 V
300 mA
VO1
1.2 V
0.7 - 2.2 V
100 mA
VO2
3.3 V
1.5 - 3.3 V
250 mA
VO3
Tracks VAVS
(Active State)
VAVS + 0.04 V
50 mA
1.2 V
(Sleep State)
0.6 - 1.35 V
5 mA
VO4
3.3 V
1.5 - 3.3 V
250 mA
VPWELL
0V
-1 ~ 0.3 V
20 uA
VNWELL
VAVS + 0 V
VAVS + (-0.3 ~ 1) V
7 mA
Note that all the regulators can be programmed to different output voltages once the part starts up.
PowerWise is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
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1
Connecting the LP5551 to the USB2PWI interface board
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Figure 1. LP5551 Evaluation Board
The LP5551 can be powered externally (bench supply), or from the PEK or USB interface board
(depending on motherboard being used). Jumper J2 must be set the appropriate power source.
JUMPER
PURPOSE
NOTE
JP2
Input voltage selection
V_BAT_POST: LP5551 powered from
external supply
V_BAT_PEK: LP5551 powered from PEK
or from USB interface board
3
Connecting the LP5551 to the USB2PWI interface board
The LP5551 evaluation board can be connected to the USB2PWI interface board for convenient control of
the PWI and all the LP5551 functions via a GUI. Figure 2 shows the USB2PWI interface board. For
instructions on how to use the GUI, see AN-1535.
Figure 2. USB Interface Board
2
AN-1467 LP5551 Evaluation Board
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Connecting the LP5551 Evaluation Board to an External Controller
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4
Connecting the LP5551 Evaluation Board to an External Controller
Jumper J1 allows for external control of the PWI, used to communicate with the LP5551. It is a SIP-9
footprint. The pin list of J1 is shown in Table 1. VBAT and VO2 are provided on J1 as sense outputs to
determine the drive levels for the inputs RESETN, EN, SPWI, and SCLK. The external controller should
drive EN and RESETN to VBAT and ground, while SPWI and SCLK should be driven between VO2 and
ground.
Table 1. J1 Pin List
Pin
5
Function
Type
Description
1
GND
GND
Ground
2
VBAT
Output
VBAT Sense
3
PWROK
Output
PWROK Sense
4
RESETN
Input
VBAT: On
GND: RESET LP5551
5
EN
Input
VBAT: On
GND: Disable LP5551
6
SPWI
Input
PWI Data
7
SCLK
Input/Output
PWI Clock
8
VO2
Output
VO2 Sense
9
GND
GND
Ground
Connecting the LP5551 Evaluation Board to the PEK
The PEK is designed to quickly and easily control the LP5551 for PowerWise Interface (PWI) compliance
testing. Figure 3 shows the PEK. For more information, see the PEK User’s Guide.
Figure 3. PowerWise Evaluation Kit (PEK)
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PCB Layout Considerations
6
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PCB Layout Considerations
The evaluation board layers from top to bottom are:
1. Top, component side
2. Ground plane
3. Power plane
4. Bottom
For layout diagrams, see Figure 5, Figure 6, and Figure 7.
For good performance of the circuit, it is essential to place the input and output capacitors very close to
the circuit and use wide routing for the traces allowing high currents. Decoupling capacitors should be
close to circuit’s VIN pins.
Sensitive components should be placed far from those components with high pulsating current.
It’s a good practice to minimize high current and switching current paths.
6.1
Low Drop Out (LDO) Regulators
Place the filter capacitors very close to the input and output pins. Use large trace width for high current
carrying traces and the returns to ground.
6.2
Buck Regulators
Place the supply bypass, filter capacitor, and inductor close together and keep the traces short. The traces
between these components carry relatively high switching current and act as antennas. Following these
rules reduces radiated noise.
Arrange the components so that the switching current loops curl in the same direction.
Connect the buck ground and the ground of the capacitors together using generous component-side
copper fill as a pseudo-ground plane. Then connect this back to the general board system ground plane at
a single point. Place the pseudo-ground plane below these components and then have it tied to system
ground of the output capacitor outside of the current loops. This prevents the switched current from
injecting noise into the system ground. These components along with the inductor and output should be
placed on the same side of the circuit board, and their connections should be made on the same layer.
Route noise sensitive traces such as the voltage feedback path away from the inductor. This is done by
routing it on the bottom layer or by adding a grounded copper area between switching node and feedback
path. To reduce noisy traces between the power components, keep any digital lines away from this
section. Keep the Feedback node as small as possible so that the ground pin and ground traces will shield
it from the SW or buck output.
Use wide traces between the power components and for power connections to the DC-DC converter
circuit to reduce voltage errors caused by resistive losses.
For the sense lines, make sure to use a Kelvin contact connection.
Table 2. Bill of Materials (BOM)
4
P/N
Part Type
Designator
Footprint
Description
MNF
VJ0805X7R475MX
AA
0.47uF
C15
805
Capacitor
Vishay
D251001501F
1.5K
R14
1206
Resistor
Vishay
D251001501F
1.5K
R13
1206
Resistor
Vishay
VJ0805X7R102MX
AA
1nF
C11
805
Capacitor
Vishay
VJ0805X7R102MX
AA
1nF
C10
805
Capacitor
Vishay
EMK212BJ475MG
4.7uF
C5
805
Capacitor
Taiyo Yuden
EMK212BJ475MG
4.7uF
C6
805
Capacitor
Taiyo Yuden
CRCW12061002F
10k
R6
1206
Resistor
Vishay
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PCB Layout Considerations
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Table 2. Bill of Materials (BOM) (continued)
P/N
Part Type
Designator
Footprint
Description
MNF
CRCW12061002F
10k
R4
1206
Resistor
Vishay
CRCW12061002F
10k
R2
1206
Resistor
Vishay
CRCW12061002F
10k
R5
1206
Resistor
Vishay
CRCW12061002F
10k
R12
1206
Resistor
Vishay
CRCW12061002F
10k
R7
1206
Resistor
Vishay
CRCW12061002F
10k
R11
1206
Resistor
Vishay
CRCW12061002F
10k
R10
1206
Resistor
Vishay
CRCW12061002F
10k
R9
1206
Resistor
Vishay
LMK316BJ226ML
22 uF
C14
1206
Capacitor
Taiyo Yuden
JMK316BJ226KL
22 uF
C7
805
Capacitor
Taiyo Yuden
JMK316BJ226KL
22 uF
C12
805
Capacitor
Taiyo Yuden
LMK212BJ105KG
1 uF
C9
805
Capacitor
Taiyo Yuden
LMK212BJ225KG
2.2 uF
C8
805
Capacitor
Taiyo Yuden
U1
WQFN
PowerWise EMU
Texas Instruments
NL
R22
1206
Resistor
NL
R18
1206
Resistor
NL
R20
1206
Resistor
NL
R21
1206
Resistor
NR4012T4R7M
4.7 uH
L2
NR4012
Inductor
Taiyo Yuden
NR4012T4R7M
4.7 uH
L1
NR4012
Inductor
Taiyo Yuden
LP5551
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5
Schematic
7
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Schematic
Figure 4. LP5551 Demo Board Schematic
6
AN-1467 LP5551 Evaluation Board
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Layout Diagrams
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8
Layout Diagrams
Figure 5. Top Layer
Figure 6. Mid Layer
Figure 7. Bottom Layer
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7
STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or
documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein.
Acceptance of the EVM is expressly subject to the following terms and conditions.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2
Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms and conditions do not apply to Software. The warranty, if any, for Software is covered in the applicable Software
License Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for any defects that are caused by neglect, misuse or mistreatment
by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any
way by an entity other than TI. Moreover, TI shall not be liable for any defects that result from User's design, specifications or
instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as
mandated by government requirements. TI does not test all parameters of each EVM.
2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM,
or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the
warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to
repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall
be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit
to determine whether to incorporate such items in a finished product and software developers to write software applications for
use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless
all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause
harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is
designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of
an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2
For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
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FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1
For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1
Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2
Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan 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 by Radio Law of
Japan to follow the instructions below with respect to EVMs:
1.
2.
3.
Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
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【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1.
2.
3.
電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
実験局の免許を取得後ご使用いただく。
技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3
Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ
い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
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4
EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
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6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (AND THE
DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY
THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS AND
CONDITIONS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY
OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD
PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY
INVENTION, DISCOVERY OR IMPROVEMENT MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF
THE EVM.
7.
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS AND CONDITIONS. THIS OBLIGATION
SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY
OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, REGARDLESS OF WHETHER TI HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED
TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS,
LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL
BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION
ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM
PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER
THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE
OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND
CONDITIONS SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
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in any United States or foreign court.
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Copyright © 2015, Texas Instruments Incorporated
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