Texas Instruments TPS54218EVM-511 2-A User manual

User's GuideSLVU331 – September 2009
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation
Module
Contents1 Introduction ................................................................................................................... 22 Test Setup and Results ..................................................................................................... 43 Board Layout ................................................................................................................ 104 Schematic and Bill of Materials ........................................................................................... 14
List of Figures
1 TPS54218EVM-511 Efficiency ............................................................................................. 52 TPS54218EVM-511 Low Current Efficiency ............................................................................. 53 TPS54218EVM-511 Load Regulation ..................................................................................... 64 TPS54218EVM-511 Line Regulation ...................................................................................... 65 TPS54218EVM-511 Transient Response ............................................................................... 76 TPS54218EVM-511 Loop Response ..................................................................................... 77 TPS54218EVM-511 Output Ripple ....................................................................................... 88 TPS54218EVM-511 Input Ripple ......................................................................................... 89 TPS54218EVM-511 Start-Up Relative to V
IN
............................................................................ 910 TPS54218EVM-511 Start-up Relative to Enable ....................................................................... 911 TPS54218EVM-511 Top-Side Layout ................................................................................... 1012 TPS54218EVM-511 Bottom-Side Layout ............................................................................... 1113 TPS54218EVM-511 Layout 2 ............................................................................................. 1214 TPS54218EVM-511 Layout 3 ............................................................................................. 1315 TPS54218EVM-511 Top-Side Assembly................................................................................ 1416 TPS54218EVM-511 Schematic .......................................................................................... 15
List of Tables
1 Input Voltage and Output Current Summary ............................................................................. 22 TPS54218EVM-511 Performance Specification Summary ............................................................. 23 Output Voltages Available .................................................................................................. 34 EVM Connectors and Test Points ......................................................................................... 45 TPS54218EVM-511 Bill of Materials ..................................................................................... 16
SWIFT is a trademark of Texas Instruments.
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 1Submit Documentation Feedback

1 Introduction
1.1 Background
1.2 Performance Specification Summary
Introduction www.ti.com
This user's guide contains background information for the TPS54218 as well as support documentation forthe TPS54218EVM-511 evaluation module (HPA375). Also included are the performance specifications,the schematic, and the bill of materials for the TPS54218EVM-511.
The TPS54218 dc/dc converter is designed to provide up to a 2 A output from an input voltage source of2.95 V to 6 V. Rated input voltage and output current range for the evaluation module are given inTable 1 . This evaluation module is designed to demonstrate the small printed-circuit-board areas that maybe achieved when designing with the TPS54218 regulator. The switching frequency is externally set at anominal 1000 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54218 packagealong with the gate drive circuitry. The low drain-to-source on resistance of the MOSFETs allow theTPS54218 to achieve high efficiencies and helps keep the junction temperature low at high outputcurrents. The compensation components are external to the integrated circuit (IC), and an external dividerallows for an adjustable output voltage. Additionally, the TPS54218 provides adjustable slow start andundervoltage lockout inputs. The absolute maximum input voltage is 7 V for the TPS54218EVM-511.
Table 1. Input Voltage and Output Current Summary
EVM INPUT VOLTAGE RANGE OUTPUT CURRENT RANGE
TPS54218EVM-511 VIN = 3 V to 6 V (VIN start = 3.1 V) 0 A to 2 A
A summary of the TPS54218EVM-511 performance specifications is provided in Table 2 . Specificationsare given for an input voltage of V
IN
= 3.3 V and an output voltage of 1.8 V, unless otherwise specified.The TPS54218EVM-511 is designed and tested for V
IN
= 3 V to 6 V. The ambient temperature is 25 °C forall measurements, unless otherwise noted.
Table 2. TPS54218EVM-511 Performance Specification Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
V
IN
operating voltage range 3 3.3 6 VV
IN
start voltage 3.1 VV
IN
stop voltage 2.8 VOutput voltage set point 1.8 VOutput current range V
IN
= 3 V to 6 V 0 2 ALine regulation I
O
= 1 A, V
IN
= 3 V to 6 V ±0.06%Load regulation V
IN
= 3.3 V, I
O
= 0 A to 2 A ±0.04%Voltage change –20 mVI
O
= 0.5 A to 1.5 A
Recovery time 400 µsLoad transient response
Voltage change 20 mVI
O
= 1.5 A to 0.5 A
Recovery time 400 µsLoop bandwidth V
IN
= 3.3 V, I
O
= 2 A 45 kHzPhase margin V
IN
= 3.3 V , I
O
= 2 A 58 °Input ripple voltage I
O
= 2 A 100 mV
PP
Output ripple voltage I
O
= 2 A 5 mV
PP
Output rise time 4 msOperating frequency 1000 kHzMaximum efficiency TPS54218EVM-511, V
IN
= 3.3 V, I
O
= 0.4 A 94.5%
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module2 SLVU331 – September 2009Submit Documentation Feedback

1.3 Modifications
1.3.1 Output Voltage Set Point
OUT
0.8 V
R7 = 100 kΩ ×
V - 0.8 V
(1)
1.3.2 Slow Start Time
Tss(mS) Iss( A)
C7(nF) = Vref(V)
´ m
(2)
1.3.3 Adjustable UVLO
-
× -
´
START STOP
6
0.944 V V
R1 =
2.59 10
(3)
-
×
- + × ´ 6
STOP
1.18 R1
R2 =
V 1.18 R1 3.2 10
(4)
www.ti.com Introduction
These evaluation modules are designed to provide access to the features of the TPS54218. Somemodifications can be made to this module.
The voltage divider R6 and R7 is used to set the output voltage. To change the output voltage of the EVM,it is necessary to change the value of resistor R7. Changing the value of R7 can change the outputvoltage above 0.8 V. The value of R7 for a specific output voltage can be calculated using Equation 1 .
Table 3 lists the R7 values for some common output voltages. Note that V
IN
must be in a range so that theminimum on-time is greater than 80 ns, and the maximum duty cycle is less than 92%. The values givenin Table 3 are standard values, not the exact value calculated using Equation 1 .
Table 3. Output Voltages Available
Output Voltage (V) R7 Value (k Ω)
1.0 4021.2 2001.5 1151.8 80.62.5 47.5
The slow start time can be adjusted by changing the value of C7. Use Equation 2 to calculate the requiredvalue of C7 for a desired slow start time
C7 is set to 0.01 µF on the EVM for a default slowstart time of 4 msec.
The undervoltage lock out (UVLO) can be adjusted externally using R1 and R2. The EVM is set for a startvoltage of 3.1 V and a stop voltage of 2.8 V using R1 = 48.8 k Ωand R2 = 32.4 k Ω. Use Equation 3 andEquation 4 to calculate required resistor values for different start and stop voltages.
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 3Submit Documentation Feedback

2 Test Setup and Results
2.1 Input / Output Connections
Test Setup and Results www.ti.com
This section describes how to properly connect, set up, and use the TPS54218EVM-511 evaluationmodule. The section also includes test results typical for the evaluation module and covers efficiency,output voltage regulation, load transients, loop response, output ripple, input ripple, and start-up.
The TPS54218EVM-511 is provided with input/output connectors and test points as shown in Table 4 . Apower supply capable of supplying 2 A must be connected to J1 through a pair of 20 AWG wires. The loadmust be connected to J4 through a pair of 20 AWG wires. The maximum load current capability must be atleast 2 A to use the full capability of this EVM. Wire lengths must be minimized to reduce losses in thewires. Test-point TP1 provides a place to monitor the V
IN
input voltages with TP2 providing a convenientground reference. TP6 is used to monitor the output voltage with TP7 as the ground reference.
Table 4. EVM Connectors and Test Points
Reference Designator Function
J1 V
IN
(see Table 1 for V
IN
range).J2 2-pin header for enable. Connect EN to ground to disable, open to enable.J3 2-pin header for to allow pull up of PWRGD to V
IN
.J4 V
OUT
, 1.8 V at 4 A maximum.TP1 V
IN
test point at V
IN
connector.TP2 GND test point at V
IN
.TP3 PH test pointTP4 Slow start monitor test point.TP5 Test point between voltage divider network and output. Used for loop response measurements.TP6 Output voltage test point at OUT connector.TP7 GND test point at OUT connector.
4TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module SLVU331 – September 2009Submit Documentation Feedback

2.2 Efficiency
50
55
60
65
70
75
80
85
90
95
100
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2
I - Output Current - A
O
Efficiency - %
V = 3.3 V
I
V = 5 V
I
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
I - Output Current - A
O
Efficiency - %
V = 3.3 V
I
Vin = 5 V
www.ti.com Test Setup and Results
The efficiency of this EVM peaks at a load current of about 0.4 A – 0.7 A and then decreases as the loadcurrent increases towards full load. Figure 1 shows the efficiency for the TPS54218EVM-511 at anambient temperature of 25 °C.
Figure 1. TPS54218EVM-511 Efficiency
Figure 2 shows the efficiency for the TPS54218EVM-511 at lower output currents on a semi log scale atan ambient temperature of 25 °C.
Figure 2. TPS54218EVM-511 Low Current Efficiency
The efficiency may be lower at higher ambient temperatures, due to temperature variation in thedrain-to-source resistance of the internal MOSFET.
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 5Submit Documentation Feedback

2.3 Output Voltage Load Regulation
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2
I - Output Current - A
O
Output Voltage Change - %
V = 3.3 V
I
2.4 Output Voltage Line Regulation
1.79
1.792
1.794
1.796
1.798
1.8
1.802
1.804
1.806
1.808
1.81
3 3.5 4 4.5 5 5.5 6
V - Input Voltage - V
I
V - Output Voltage - V
O
I = 1
O
Test Setup and Results www.ti.com
Figure 3 shows the load regulation for the TPS54218EVM-511.
Figure 3. TPS54218EVM-511 Load Regulation
Measurements are given for an ambient temperature of 25 °C.
Figure 4 shows the line regulation for the TPS54218EVM-511.
Figure 4. TPS54218EVM-511 Line Regulation
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module6 SLVU331 – September 2009Submit Documentation Feedback

2.5 Load Transients
V = 50 mV/div (ac coupled)
OUT
I = 1 A/div,
0.5 to 1.5 A step
OUT
Time = 2 ms/div
2.6 Loop Characteristics
60
-60
Gain
10 1M
f - Frequency - Hz
Phase
180
-180
Gain
Fhase
www.ti.com Test Setup and Results
Figure 5 shows the TPS54318EVM-375 response to load transients. The current step is from 25% to 75%of maximum rated load at 3.3 V input. Total peak-to-peak voltage variation is as shown, including rippleand noise on the output.
Figure 5. TPS54218EVM-511 Transient Response
Figure 6 shows the TPS54218EVM-511 loop-response characteristics. Gain and phase plots are shownfor V
IN
voltage of 3.3 V. Load current for the measurement is 2 A.
Figure 6. TPS54218EVM-511 Loop Response
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 7Submit Documentation Feedback

2.7 Output Voltage Ripple
V = 10 mV/div (ac coupled)
OUT
PH = 2 V/div
Time = 500 ns/div
2.8 Input Voltage Ripple
V = 50 mV/div (ac coupled)
I
PH = 2 V/div
Time = 500 ns/div
Test Setup and Results www.ti.com
Figure 7 shows the TPS54218EVM-511 output voltage ripple. The output current is the rated full load of2 A and V
IN
= 3.3 V. The ripple voltage is measured directly across the output capacitors.
Figure 7. TPS54218EVM-511 Output Ripple
Figure 8 shows the TPS54218EVM-511 input voltage ripple. The output current is the rated full load of2 A and V
IN
= 3.3 V. The ripple voltage is measured directly across the input capacitors.
Figure 8. TPS54218EVM-511 Input Ripple
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module8 SLVU331 – September 2009Submit Documentation Feedback

2.9 Powering Up
V = 2 V/div
I
EN = 1 V/div
SS = 1 V/div
V = 1 V/div
O
Time = 5 ms/div
V = 2 V/div
I
EN = 1 V/div
SS = 1 V/div
V = 1 V/div
O
Time = 5 ms/div
www.ti.com Test Setup and Results
Figure 9 and Figure 10 show the start-up waveforms for the TPS54218EVM-511. In Figure 9 , the outputvoltage ramps up as soon as the input voltage reaches the UVLO threshold as set by the R
1
and R
2resistor divider network. In Figure 10 , the input voltage is initially applied and the output is inhibited byusing a jumper at J2 to tie EN to GND. When the jumper is removed, EN is released. When the ENvoltage reaches the enable-threshold voltage, the start-up sequence begins and the output voltage rampsup to the externally set value of 1.8 V. The input voltage for these plots is 5 V and the load is 1 Ω.
Figure 9. TPS54218EVM-511 Start-Up Relative to V
IN
Figure 10. TPS54218EVM-511 Start-up Relative to Enable
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 9Submit Documentation Feedback

3 Board Layout
3.1 Layout
Board Layout www.ti.com
This section provides a description of the TPS54218EVM-511, board layout, and layer illustrations.
Figure 11 through Figure 15 shows the board layout for the TPS54218EVM-511. The topside layer of theEVM is laid out in a manner typical of a user application. The top, bottom and internal layers are 2-oz.copper.
The top layer contains the main power traces for V
IN
, V
OUT
, and VPHASE. Also on the top layer areconnections for the remaining pins of the TPS54218 and a large area filled with ground. The bottom andinternal layers contain ground planes only. The top-side ground areas are connected to the bottom andinternal ground planes with multiple vias placed around the board including four vias directly under theTPS54218 device to provide a thermal path from the top-side ground area to the bottom-side and internalground planes.
The input decoupling capacitors (C2, and C3) and bootstrap capacitor (C6) are all located as close to theIC as possible. In addition, the voltage set-point resistor divider components are also kept close to the IC.The voltage divider network ties to the output voltage at the point of regulation, the copper V
OUT
trace nearthe output connector J4. For the TPS54218, an additional input bulk capacitor may be required, dependingon the EVM connection to the input supply.
Figure 11. TPS54218EVM-511 Top-Side Layout
10 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module SLVU331 – September 2009Submit Documentation Feedback

www.ti.com Board Layout
Figure 12. TPS54218EVM-511 Bottom-Side Layout
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 11Submit Documentation Feedback

Board Layout www.ti.com
Figure 13. TPS54218EVM-511 Layout 2
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module12 SLVU331 – September 2009Submit Documentation Feedback

www.ti.com Board Layout
Figure 14. TPS54218EVM-511 Layout 3
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 13Submit Documentation Feedback

3.2 Estimated Circuit Area
4 Schematic and Bill of Materials
Schematic and Bill of Materials www.ti.com
Figure 15. TPS54218EVM-511 Top-Side Assembly
The estimated printed circuit board area for the components used in this design is 0.37 in
2
(239 mm
2
).This area does not include test point or connectors.
This section presents the TPS54218EVM-511 schematic and bill of materials.
14 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module SLVU331 – September 2009Submit Documentation Feedback

4.1 Schematic
www.ti.com Schematic and Bill of Materials
Figure 16 is the schematic for the TPS54218EVM-511.
Figure 16. TPS54218EVM-511 Schematic
SLVU331 – September 2009 TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module 15Submit Documentation Feedback

4.2 Bill of MaterialsSchematic and Bill of Materials
www.ti.com
Table 5 presents the bill of materials for the TPS54218EVM-511.
Table 5. TPS54218EVM-511 Bill of Materials
COUNT RefDes Value Description Size Part Number MFR
0 C1 Open Capacitor, Ceramic Multi sizes Engineering Only Std1 C2 10uF Capacitor, Ceramic, 10V, X5R, 1206 Std Std20%2 C3, C6 0.1uF Capacitor, Ceramic, 25V, X5R, 0603 Std Std10%1 C4 3900pF Capacitor, Ceramic, 50V, X5R, 0603 Std Std10%0 C5 Open Capacitor, Ceramic 0603 Std Std1 C7 0.01uF Capacitor, Ceramic, 16V, X7R, 0603 Std Std10%2 C8, C9 22 uF Capacitor, Ceramic, 10V, X5R, 1210 Std Std20%2 J1, J4 ED555/2DS Terminal Block, 2-pin, 6-A, 0.27 x 0.25 inch ED555/2DS OST3.5mm2 J2, J3 PEC02SAAN Header, Male 2-pin, 100mil 0.100 inch x 2 PEC02SAAN Sullinsspacing1 L1 2.2 uH INDUCTOR, Power 0.276 x 0.276 inch XPL7030-222ML Coilcraft1 R1 32.4k Resistor, Chip, 1/16W, 1% 0603 Std Std1 R2 48.7k Resistor, Chip, 1/16W, 1% 0603 Std Std1 R3 9.53k Resistor, Chip, 1/16W, 1% 0603 Std Std2 R4, R6 100k Resistor, Chip, 1/16W, 1% 0603 Std Std1 R5 182k Resistor, Chip, 1/16W, 1% 0603 Std Std1 R7 80.6k Resistor, Chip, 1/16W, 1% 0603 Std Std1 R8 51.1 Resistor, Chip, 1/16W, 1% 0603 Std Std5 TP1, TP3 - TP6 5000 Test Point, Red, Thru Hole Color 0.100 x 0.100 inch 5000 KeystoneKeyed2 TP2, TP7 5001 Test Point, Black, Thru Hole 0.100 x 0.100 inch 5001 KeystoneColor Keyed1 U1 TPS54218RTE IC, DC-DC Converter, 3-6 V, 2A QFN-16 TPS54218RTE TI2 -- Shunt, 100-mil, Black 0.100 929950-001 -- PCB, 2.0" x 2.0" x 0.062" HPA511Notes: 1. These assemblies are ESD sensitive, ESD precautions shall be observed.2. These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.3. These assemblies must comply with workmanship standards IPC-A-610 Class 2.4. Ref designators marked with an asterisk ('**') cannot be substituted. All other components can be substituted with equivalentaaMFG's components.
TPS54218EVM-511 2-A, SWIFT™ Regulator Evaluation Module16 SLVU331 – September 2009Submit Documentation Feedback

EVALUATION BOARD/KIT IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must haveelectronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be completein terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmentalmeasures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit doesnot fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days fromthe date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYERAND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OFMERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claimsarising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and allappropriate precautions with regard to electrostatic discharge.EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANYINDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents orservices described herein.
Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. Thisnotice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/orsafety programs, please contact the TI application engineer or visit www.ti.com/esh .No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, orcombination in which such TI products or services might be or are used.FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radiofrequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which aredesigned to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments maycause interference with radio communications, in which case the user at his own expense will be required to take whatever measures maybe required to correct this interference.
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range and the output current range specified in Table 1.Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questionsconcerning the input range, please contact a TI field representative prior to connecting the input power.Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.Please consult the EVM User's 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, some circuit components may have case temperatures greater than 55 °C. The EVM is designed to operateproperly with certain components above 60 °C as long as the input and output ranges are maintained. These components include but arenot limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identifiedusing the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,please be aware that these devices may be very warm to the touch.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright 2006, Texas Instruments Incorporated

IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the latest relevant information before placing orders and should verify that such information is current and complete. All products aresold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standardwarranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except wheremandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products andapplications using TI components. To minimize the risks associated with customer products and applications, customers should provideadequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license from TI to use such products or services or awarranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectualproperty of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompaniedby all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptivebusiness practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additionalrestrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids allexpress and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is notresponsible or liable for any such statements.TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonablybe expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governingsuch use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, andacknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their productsand any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may beprovided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products insuch safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products arespecifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet militaryspecifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely atthe Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products aredesignated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designatedproducts in automotive applications, TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAmplifiers amplifier.ti.com Audio www.ti.com/audioData Converters dataconverter.ti.com Automotive www.ti.com/automotiveDLP® Products www.dlp.com Broadband www.ti.com/broadbandDSP dsp.ti.com Digital Control www.ti.com/digitalcontrolClocks and Timers www.ti.com/clocks Medical www.ti.com/medicalInterface interface.ti.com Military www.ti.com/militaryLogic logic.ti.com Optical Networking www.ti.com/opticalnetworkPower Mgmt power.ti.com Security www.ti.com/securityMicrocontrollers microcontroller.ti.com Telephony www.ti.com/telephonyRFID www.ti-rfid.com Video & Imaging www.ti.com/videoRF/IF and ZigBee® Solutions www.ti.com/lprf Wireless www.ti.com/wireless
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright © 2009, Texas Instruments Incorporated