TPS3897A-6P-EVM047

User's Guide SLVU524A – August 2011 – Revised September 2011 TPS389xA-xP-EVM047 Evaluation Modules This user’s guide describes the characteristics and operational use of the TPS389XA-XP-EVM047 Evaluation Module (EVM) for engineering demonstration of the TPS3897A and TPS3896P supervisors (TPS3897A-6P-EVM047), the TPS3897P and TPS3896A supervisors (TPS3897P-6A-EVM047), the TPS3898A and TPS3895P supervisors (TPS3898A-5P-EVM047), or the TPS3898P and TPS3895A supervisors (TPS3898P-5AEVM047). These EVMs are fully assembled and tested platforms for evaluating the performance of the TPS389xA-xP family of supervisory circuits. Any one EVM can be manually modified to easily accommodate alternative supervisor ICs of this same family. This TPS389XA-XP family are adjustable supervisors in an ultra small package, that can monitor voltages greater than the 500 mV sense voltage, whose accuracy is better than 1%. This user’s guide includes setup instructions, schematic, bill of materials (BOM), layout, and test results for a typical SVS circuit on the EVM 1 2 3 4 5 6 Contents Introduction .................................................................................................................. 2 1.1 Features ............................................................................................................. 2 1.2 EVM Interface Information and Orderable Options (Dependent on Customer Demand and Availability) .......................................................................................................... 2 Schematic .................................................................................................................... 3 I/O Description, Threshold and Delay Calculations, and Setup ....................................................... 4 3.1 EVM Input/Output Connectors and Test Jumpers ............................................................. 4 3.2 CT and Output Delay Time ....................................................................................... 4 3.3 SVS SENSE Voltage Threshold: Programming the Threshold Voltage .................................... 4 3.4 ........................................................................................................................ 5 Operation ..................................................................................................................... 5 4.1 Operation Description ............................................................................................. 5 4.2 Test Results ........................................................................................................ 5 Board Layout ................................................................................................................ 7 Bill of Materials ............................................................................................................. 10 List of Figures 1 TPS389xA-xP-EVM-047 Schematic ...................................................................................... 3 2 Sense_out response (active high) to rising/falling SVS SENSE (TPS3895A) ...................................... 6 3 Sense_out response (active low) to rising/falling SVS SENSE (TPS3898A) ....................................... 6 4 Assembly Layer (Top) ...................................................................................................... 7 5 Top Layer Routing .......................................................................................................... 8 6 Bottom Layer Routing ...................................................................................................... 9 List of Tables 1 SVS Circuit Interface Information based on EVM Orderable.......................................................... 2 2 EVM Input/Output Connectors and Jumpers ............................................................................ 4 3 SVS SENSE Threshold Accuracy and Resistor Divider Selection ................................................... 5 4 EVM Assembly Associated with EVM Orderable...................................................................... 10 5 ............................................................................................................................... SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 11 1 Introduction 1 www.ti.com Introduction The TPS389xA-xP-EVM047 helps designers evaluate the operation and performance of the TPS389xA-xP family of single channel supervisors (SVS) available in the ultra small µSon package. Each EVM has two completely independent SVS circuits each preprogrammed by a resistor divider to monitor a 3.3 V SVS SENSE rail. Each SVS circuit issues the active Sense_out when the SVS SENSE voltage rises above the preprogrammed threshold, which in this case is set to 94.5% of the 3.3 V rail (nominally) by the divider resistors. The Sense_out is inactive when the SVS SENSE falls below the threshold minus hysteresis, or when the part is disabled. The SVS part itself is capable of monitoring voltage rails greater than 500 mV with its 1% accurate reference, is available with active high or low, push-pull or open-drain output drivers, and its Sense_out time delay is adjustable by an external capacitor. Each SVS circuit on the EVM use a 0.047 µF capacitor to program the Sens_out time delays to 190 ms (nominally). The TPS389xA-xP family of supervisory circuits provides circuit initialization and timing for power good and reset to DSPs and microprocessor-based systems. 1.1 Features • • • • • 1.2 Low quiescent current: 6 µA (typical Power-on RESET generator with capacitor adjustable delay time Open-Drain/Push Pull output options External Enable Input Threshold accuracy of 1% over temperature EVM Interface Information and Orderable Options (Dependent on Customer Demand and Availability) The EVM contains two complete operational SVS circuits supporting two TPS389xA-xP ICs installed at U1 and U2 on the EVM. Table 1 describes the input/output interface to each circuit per orderable EVM. NOTE: SVS parts with the “A” designator employ the time delay capacitor to set both the Sense_out time delay and the Enable time delay. SVS parts designated with the “P” employ the time delay capacitor to set the SENSE_OUT time delay only. Table 1. SVS Circuit Interface Information based on EVM Orderable EVM Orderable TPS3897A-6P-EVM047 TPS3897P-6A-EVM047 TPS3898A-5P-EVM047 TPS3898P-5A-EVM047 2 Part Designator ENABLE (EN) OUTPUT (Sense_out) INPUT DELAY (Sense_out relative to SVS SENSE ENABLE Delay (Sence_out relative to active EN) TPS3897A U1 Active High Active High, Open-Drain Capacitor Adjustable Capacitor Adjustable TPS3896P U2 Active Low Active Low, Push-Pull Capacitor Adjustable 200ns TPS3897P U1 Active High Active High, Open-Drain Capacitor Adjustable 200ns TPS3896A U2 Active Low Active Low, Push-Pull Capacitor Adjustable Capacitor Adjustable TPS3898A U1 Active Low Active Low, Open-Drain Capacitor Adjustable Capacitor Adjustable TPS3895P U2 Active High Active High, Push-Pull Capacitor Adjustable 200ns TPS3898P U1 Active Low Active Low, Open-Drain Capacitor Adjustable 200ns TPS3895A U2 Active High Active High, Push-Pull Capacitor Adjustable Capacitor Adjustable TPS389xA-xP-EVM047 Evaluation Modules SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Schematic www.ti.com 2 Schematic J5 Vpullup J1 R3 VCC 0 ohm J2 SVS SENSE (6.5V max) R1 1.00M J3 U1 TPS389xDRY VCC EN 1 EN GND1 R4 49.9k 1 J6 VCC 6 2 GND CT 5 3 SNS SNS_OUT 4 Sense_out C2 R2 191k C1 J4 0.1uF J7 0.047uF GND1 GND1 GND1 J8 VCC J9 SVS SENSE (6.5V max) R5 1.00M J10 U2 TPS389xDRY VCC EN 1 EN GND2 1 J12 VCC 6 2 GND CT 5 3 SNS SNS_OUT 4 Sense_out C4 R6 191k 0.1uF C3 J11 J13 0.047uF GND2 GND2 See BOM for Install 1 GND2 Figure 1. TPS389xA-xP-EVM-047 Schematic SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 3 I/O Description, Threshold and Delay Calculations, and Setup www.ti.com 3 I/O Description, Threshold and Delay Calculations, and Setup 3.1 EVM Input/Output Connectors and Test Jumpers Table 2. EVM Input/Output Connectors and Jumpers 3.2 Connector Label Description J1, J8 VCC Input power supply connection to the U1 and U2 SVS circuits, respectively: 1.7 V to 6.5 V . J2, J9 SVS SENSE Monitored supervisor sense voltage input to the U1 and U2 SVS circuits, respectively. This monitored voltage is compared to the 0.5 V reference at the SENSE pin of the IC through the resistor divider, R1–R2 or R5-R6 respectively. J4, J7 GND1 Ground return for the input power supply (VCC), the SVS SENSE and the Sense_out of the U1 SVS circuit. J6, J12 Sense_out Logically Active when the SVS SENSE is above threshold and the circuit is enabled. Logically inactive when the SVS is disabled and the SVS SENSE is less than the threshold minus the threshold hysteresis. J11,J13 GND2 Ground return for the input power supply (VCC), the SVS SENSE and the Sense_out of the U2 SVS circuit. J3, J10 EN Enable for the U1 and U2 SVS circuits respectively. Jumpering J3 (J10) from EN (pin 2) to VCC (pin 1) enables those SVS circuits with active high enable (see Table 1). Jumpering J3 (J10) from EN (pin 2) to GND (pin 3) enables those SVS circuits with active low enable (see section Section 1.2) J5 Vpull-up External pull-up voltage input for the open-drain Sense_out. Normally this pull-up is accomplished through an on-board 0 Ω resistor (R3) to VCC. Remove R3 before applying a V pullup voltage (up to 20 V abs max). CT and Output Delay Time An external capacitor is connected between the CT pin and GND to program the adjustable delay time. Each EVM SVS circuit uses a 0.047 µF ceramic capacitor to gives a delay of 190 ms. If the CT pin is left open, there will be a delay of 40 µs. The adjustable time delay, can be calculated using the following equation (found in the data sheet): tDL = (CCT x 4 x 106) + 40 µs (1) Where CCT is the capacitance in farads and tDL is the time delay in seconds. This equation sets the enable and input delays. 3.3 SVS SENSE Voltage Threshold: Programming the Threshold Voltage The SVS SENSE voltage is monitored at the SENSE pin of the IC through an on board resistive voltage divider. This divider is designed to trigger the active Sense_out when the SVS SENSE voltage crosses the threshold set by the divider. Typically this threshold voltage, Vthresh, is set lower than the nominal rail voltage being monitored by a few percent depending on the application. This EVM has set the threshold voltage to be approximately 5.5% below monitored SVS SENSE voltage of 3.3 V. The nominal resistor values for a given threshold voltage can be calculated from Equation 2: Vthresh = (1 + R1/R2) x 0.5 V (2) Where the R1 and R2 resistors are place values representing the R1-R2 resistors shown in the U1 SVS circuit or the R5-R6 resistors shown in the U2 SVS circuit of the EVM, respectively. Equation 2 does not account for the tolerances of the divider resistors, the accuracy of the SVS SENSE threshold voltage or the accuracy of the reference voltage. For the TPS389xA-xP, the reference voltage accuracy is 0.5 V±1%. Equation 3 calculates the nominal threshold voltage and its error as a function of the reference accuracy and the divider resistor tolerance. V ±Error = (1 + R1/R2) x 0.5 (1 ± 0.01) ±2 x Rtol (1 - Vsense /V ) thresh thresh Vthresh Reference Accuracy Resistor Tolerance Error (3) Where Rtol is the tolerance of the divider resistors as a decimal. 4 TPS389xA-xP-EVM047 Evaluation Modules SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Operation www.ti.com Table 3 shows the SVS SENSE threshold accuracy based on the resistor tolerance and the reference accuracy values. Table 3. SVS SENSE Threshold Accuracy and Resistor Divider Selection 3.4 Monitor SVS Voltage Threshold Voltage (nominal) R1(R5) Selection (0.1% Tol) Ω R2 (R6) Calculation (0.1% Tol) Ω Threshold Accuracy Min/Max Threshold Voltage 1.8 V 1.699 V (5.61% below SVS Voltage) 1M 422K 1.68V / 1.72V 3.3 V 3.118 V (5.52% below SVS Voltage) 1M 191K 3.08V / 3.15V 5.0 V 4.667 V (6.66% below SVS Voltage) 1M 120K 4.61V / 4.72V SETUP: Connecting to the SVS Circuit of U1 (U2). 3.4.1 Connect the VCC power supply to power the circuit from J1 (J8) to ground, GND1 (GND2) at J4 (J11). 3.4.2 Observe the output between Sense_out, J6 (J12), and ground, J7 (J13), using a voltmeter and or an oscilloscope. 3.4.3 Enable the SVS circuit by correctly jumpering J3 (J10) in accord with the Table 2 description. 3.4.4 Connect the monitored voltage the SVS SENSE connector, J2 (J9), and ground, J4 (J11). 3.4.4.1 Vary the monitored voltage level, at SVS SENSE, as needed to see the various responses to the output at Sense_out. 4 Operation 4.1 Operation Description After applying power to VCC, followed by the active Enable, the Sense_out will become active after the Enable delay, provided that the SVS SENSE voltage is above the programmed threshold voltage. When the SVS SENSE voltage falls below the threshold voltage minus the hysteresis voltage (VHYS) - where VHYS = 5 mV x (1 + R1/R2) - the Sense_out becomes immediately inactive (within 16 µs typical). Assuming that VCC is within operational range and that the EN is active, the output will toggle when the input SVS SENSE voltage rises and falls above-below the threshold. 4.2 Test Results Figure 2 shows the Sense_out voltage (red, C2) becoming active high approximately 192 ms (Input Delay) after the SVS SENSE voltage (gold, C1) rises above the threshold voltage. The Sense_out signal immediately falls when the SVS SENSE voltage falls below the threshold. The VCC voltage has been previously set to 3.3 V. The SVS circuit being demonstrated employs the TPS3895A supervisory IC. SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 5 Operation www.ti.com Figure 2. Sense_out response (active high) to rising/falling SVS SENSE (TPS3895A) Figure 3 shows the Sense_out voltage (gold, C1) becoming active low approximately 160 ms (Input Delay) after the SVS SENSE voltage (blue, C2) rises above the threshold voltage. The Sense_out signal immediately falls when the SVS SENSE voltage falls below the threshold. The VCC voltage has been previously set to 3.3 V. The SVS circuit being demonstrated employs the TPS3895A supervisory IC SPACER Figure 3. Sense_out response (active low) to rising/falling SVS SENSE (TPS3898A) 6 TPS389xA-xP-EVM047 Evaluation Modules SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Board Layout www.ti.com 5 Board Layout This section provides the TPS389XEVM board layout. J3 J5 R4 R3 J1 J2 J6 R2 1 R1 C2 U1 C1 J4 J7 J8 J10 J12 J9 R6 1 J11 R5 C4 U2 C3 J13 Figure 4. Assembly Layer (Top) SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 7 Board Layout www.ti.com Figure 5. Top Layer Routing 8 TPS389xA-xP-EVM047 Evaluation Modules SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Board Layout www.ti.com Figure 6. Bottom Layer Routing SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 9 Bill of Materials 6 www.ti.com Bill of Materials Table 4. EVM Assembly Associated with EVM Orderable PWR047001 PWR047002 PWR047003 PWR047004 COUNT COUNT COUNT COUNT RefDes Value Description Size Part Number 2 2 2 2 C1 C3 0.047uF Capacitor, Ceramic, X7R, 10V 10% 0603 STD 2 2 2 2 C2 C4 0.1uF Capacitor, Ceramic, X7R, 50V 10% 0603 STD 11 11 11 11 J1-2 J4-9 J11-13 PEC02SAAN Header, Male 2-pin, 100mil spacing 0.100 inch x 2 PEC02SAAN 2 2 2 2 J3 J10 PEC03SAAN Header, Male 3-pin, 100mil spacing 0.100 inch x 3 PEC03SAAN 2 2 2 2 R1 R5 1.00M Resistor, 1/8W, 0.1%, ±25ppm/°C 0805 ERA-6AEB105V 2 2 2 2 R2 R6 191k Resistor, 1/8W, 0.1%, ±25ppm/°C 0805 TNPW0805191KBEEA 1 1 1 1 R3 0 ohm Resistor, Chip, 1/16W, 1% 0402 STD 1 1 1 1 R4 49.9k Resistor, Chip, 1/16W, 1% 0402 STD 1 0 0 0 U1 TPS3897ADRY IC, Single Chan Adjustable Supervisory DSBGA TPS3897ADRY 0 0 1 0 U1 TPS3898ADRY IC, Single Chan Adjustable Supervisory DSBGA TPS3898ADRY 0 0 0 1 U2 TPS3895ADRY IC, Single Chan Adjustable Supervisory DSBGA TPS3895ADRY 0 1 0 0 U2 TPS3896ADRY IC, Single Chan Adjustable Supervisory DSBGA TPS3896ADRY 0 1 0 0 U1 TPS3897PDRY IC, Single Chan Adjustable Supervisory DSBGA TPS3897PDRY 0 0 0 1 U1 TPS3898PDRY IC, Single Chan Adjustable Supervisory DSBGA TPS3898PDRY 0 0 1 0 U2 TPS3895PDRY IC, Single Chan Adjustable Supervisory DSBGA TPS3895PDRY 1 0 0 0 U2 TPS3896PDRY IC, Single Chan Adjustable Supervisory DSBGA TPS3896PDRY 2 2 2 2 -- Shunt Shunt, Black 100-mil 929950-00 1 1 1 1 -- Board PCB, 2.300 In x 1.730 In x 0.062 In Notes: 1. These assemblies are ESD sensitive, ESD precautions shall be observed. PWR047 SPACER 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 equivalent MFG's components. 5. Install label after final wash. Text shall be 8 pt font. Text shall be per Table 5. 6. Score the board per score line but do not separate them. 10 SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated Bill of Materials www.ti.com Table 5. Assembly Number text PWR047-001 TPS3897A-6P-EVM047 PWR047-002 TPS3897P-6A-EVM047 PWR047-003 TPS3898A-5P-EVM047 PWR047-004 TPS3898P-5A-EVM047 SLVU524A – August 2011 – Revised September 2011 Submit Documentation Feedback TPS389xA-xP-EVM047 Evaluation Modules Copyright © 2011, Texas Instruments Incorporated 11 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 PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does not 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 from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY 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 claims arising 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 all appropriate 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 ANY INDIRECT, 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 or services 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. This notice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/or safety 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, or combination 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 PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. EVM Warnings and Restrictions It is important to operate this EVM within the input voltage range of 0 V to 7 V and the output voltage range of 0 V to 7 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning 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 85° C. The EVM is designed to operate properly with certain components above 85° C as long as the input and output ranges are maintained. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified using 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 75265 Copyright © 2011, 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 should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold 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 standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated 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 and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate 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. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property 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 accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible 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 reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the 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 are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products 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 Applications Audio www.ti.com/audio Communications and Telecom www.ti.com/communications Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps DLP® Products www.dlp.com Energy and Lighting www.ti.com/energy DSP dsp.ti.com Industrial www.ti.com/industrial Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical Interface interface.ti.com Security www.ti.com/security Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Power Mgmt power.ti.com Transportation and Automotive www.ti.com/automotive Microcontrollers microcontroller.ti.com Video and Imaging RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap Wireless Connctivity www.ti.com/wirelessconnectivity TI E2E Community Home Page www.ti.com/video e2e.ti.com Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2011, Texas Instruments Incorporated