TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com 3-V to 20-V High-Current Load Switch Check for Samples: TPS2590 FEATURES DESCRIPTION • • • • • • • • • • • • The TPS2590 provides highly integrated hot-swap power management and superior protection in applications where the load is powered by voltages between 3.0 V and 20 V. This device is intended for systems where a voltage bus must be protected to prevent load shorts from interrupting or damaging other system components. The TPS2590 is in a 16-pin QFN package. 1 Integrated Pass MOSFET 3-V to 20-V Bus Operation Programmable Fault Timer Programmable Fault Current Programmable Hard Current Limit Fast Disable Thermal Shutdown Load Fault Alert Latching and Auto-retry Operation 4-mm x 4-mm QFN -40°C to 125°C Junction Temperature Range UL Listed - File Number E169910 The TPS2590 has multiple programmable protection features. Load protection is accomplished by a non-current limiting fault threshold, a hard current limit threshhold, and a fault timer. The dual current thresholds allow the system to draw high current for short periods without causing a voltage droop at the load. An example of this is a disk drive startup. This technique is ideal for loads that experience brief high demand, but benefit from protection levels consistent with average current draw. APPLICATIONS • • • • • RAID Arrays Telecommunications Plug-In Circuit Boards Disk Drive Notebooks / Netbooks Hotswap MOSFET protection is provided by power limit circuitry which protects the internal MOSFET against SOA related failures. The TPS2590 provides a fault indicator output and allows latch off or retry on fault. 12-V, 3.5-A Application Figure 1. IN OUT TPS2590 16 EN RTRY FLT 15 GND 6 Input Voltage Bus ILIM IFLT CT 7 8 9 40.2 kW 49.9 kW CLOAD Optional: To System Monitor Output To Voltage Bus or DC-to-DC Converter 0.1 mF UDG-10102 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2009–2011, Texas Instruments Incorporated TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com ORDERING INFORMATION DEVICE JUNCTION TEMPERATURE PACKAGE ORDERING CODE MARKING TPS2590 -40°C to 125°C RSA (4-mm x 4-mm QFN) TPS2590RSA TPS2590 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) (2) UNIT Input voltage range IN, OUT -0.3 to 25 Voltage range FLT -0.3 to 20 V Voltage IFAULT, ILIM 1.75 Voltage CT 3.0 Output sink current FLT 10 Input voltage range, EN -0.3 to 6 V 35 uA Input current, RTRY ( RTRY internally clamped to 3 V ) RTRY = 0 V Voltage range CT (3), IFLT (3) ,ILIM (3), RTRY -0.3 to 3 ESD rating, HBM 2 .5 k ESD rating, CDM Internally Limited Storage temperature range, Tstg (2) (3) (3) (4) °C -65 to 150 Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability. All voltage values are with respect to GND. Do not apply voltage to pin. DISSIPATION RATINGS (1) (1) (2) V 400 Operating junction temperature range, TJ (1) mA (2) (3) (4) PACKAGE θJA LOW K, °C/W θJA HIGH K, °C/W θJA BEST 4, °C/W RSA 211 55 50 Tested per JEDEC JESD51, natural convection. The definitions of high-k and low-k are per JESD 51-7and JESD 51-3. Low-k (2 signal - no plane, 3 in. by 3 in. board, 0.062 in. thick, 1 oz. copper) test board with the pad soldered, and an additional 0.12 in.2 of top-side copper added to the pad. High-k is a (2 signal – 2 plane) test board with the pad soldered. The best case thermal resistance is obtained using the recommendations per SLMA002A (2 signal - 2 plane with the pad connected to the plane). RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) PARAMETER MIN NOM MAX UNIT Input voltage range IN, OUT 3 Voltage range EN 0 5 Voltage range FLT 0 20 Output sink current FLT 0 1 mA Voltage range RTRY 0 3 V 100 p 10 m F -40 125 °C CCT Junction temperature 2 Submit Documentation Feedback 20 V Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IN UVLO Bias current VIN ↑ 2.6 2.85 2.9 V Hysteresis 150 mV EN = 2.4 V 25 100 μA EN = 0 V 3.9 5 mA 29.5 42.0 mΩ OUT RON RVIN-VOUT, IVOUT < IRLIM or IVOUT < (ISET x 1.25), 1 A ≤ IVOUT ≤ 4.5 A Power limit VIN: 12 V, COUT = 1000 μF, EN: 3 V → 0 V Reverse diode voltage VOUT > VIN , EN = 5 V, IIN = - 1 A 3 5 7.5 W 0.77 1.0 V IFLT IFLT Fault current threshold IVOUT ↑, ICT: sinking → sourcing, pulsed test (RRFLT = 200 kΩ) 0.8 1 1.2 IVOUT ↑, ICT: sinking → sourcing, pulsed test (RRFLT = 100 kΩ) 1.8 2 2.2 IVOUT ↑, ICT: sinking → sourcing, pulsed test (RRFLT = 49.9 kΩ) 3.6 4 4.4 1.6 2 2.4 2.6 3 3.4 4.6 5 5.4 A ILIM RRLIM = 100 kΩ Current limit program IVOUT , RRLIM = 66.5 kΩ VVIN-VOUT = 0.3 V, pulsed test RRLIM = 40.2 kΩ A CT Charge/discharge current Threshold voltage ON/OFF fault duty cycle ICT sourcing, VCT = 1 V 29 35 41 ICT sinking, VCT = 1 V 1.0 1.4 1.8 VCT ↑ 1.3 1.4 1.5 VCT ↓ 0.1 0.16 0.3 VVOUT = 0 V 2.8 3.7 4.6 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 μA V % 3 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT EN Threshold voltage Input bias current V EN ↓ 0.8 1.0 1.5 V Hysteresis 50 150 250 mV -1.5 0 0.5 -2 1 0.5 350 500 V EN = 2.4 V (sinking) V EN = 0.2 V (sourcing) μA Turn on propagation delay VIN = 3.3 V, ILOAD = 1 A, V : 2.4 V → 0.2 V, VOUT: ↑ EN 90% x VIN Turn off propagation delay VIN = 3.3 V, ILOAD = 1 A, V : 0.2 V → 2.4 V, VOUT: EN ↓10% x VIN 10 20 VOUT LOW VCT = 1.8 V, I FLT = 1 mA 0.2 0.4 V Leakage current V FLT = 18 V 1 μA Low threshold voltage Auto Retry Mode High threshold Latch mode μs FLT RTRY Input bias current 0.8 2.0 V RTRY = 3.0 V -1.0 0.2 1.0 V RTRY = 0.2 V -50 -25 0 V mA Thermal Shutdown Thermal shutdown TJ 160 Hysteresis 4 Submit Documentation Feedback 10 °C Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com DEVICE INFORMATION TPS2590 Functional Block Diagram IN IOUT 1 2 3 4 V(DS) Detector + S 10 uA Q Pump Constant Power Engine 14 GND 13 5 R R R FT LCA + + 1.0V + I(D) Detector - 1.6 x ILIM ILIM 7 12 11 OUT 10 15 FAULT\ + + IOUT ______ 200k 8 PWRG\ + IFLT CT Charge THERMAL SHUTDOWN 34 uA CT 1.35 V 9 S Q R Q FLT + FLT 1.25 uA 33 uA + 3V 200 mV 100 k 3V 1.5V + RTRY\ 6 PWRG\ VIN EN\ 16 Internal Rail + 2.7 / 2.6 Figure 2. Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 5 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com VIN 1 VIN 2 EN FLT GND GND TPS2590 PINOUT 16 15 14 13 12 VOUT 11 VOUT TPS2590 4 9 5 6 7 8 IFLT VIN ILIM 10 VOUT RTRY 3 GND VIN CT TERMINAL FUNCTIONS FUNCTION TPS2590 DESCRIPTION EN 16 Device is enabled when this pin is pulled low. IN 1-4 Power In and control supply voltage. RTRY 6 If low, the TPS2590 will attempt to restart after an overcurrent fault. If floating (high) the device will latch off after an overcurrent fault and will not attempt to restart until EN or Vin is cycled off and on. ILIM 7 A resistor to ground sets the current limit level. IFLT 8 A resistor to ground sets the fault current level. CT 9 A capacitor to ground sets the fault time. GND 5, 13, 14 GND OUT 10, 11, 12 Output to the load. FLT 15 Fault low indicated the fault time has expired and the FET is switched off. PIN DESCRIPTION CT: Connect a capacitor form CT to GND to set the fault time. The fault timer starts when the fault current threshold is exceeded, charging the capacitor with 36 μA from GND towards an upper threshold of 1.4 V. If the capacitor reaches the upper threshold, the internal pass MOSFET is turned off. The MOSFET will stay off until EN is cycled if a latching version is used. If an auto-retry version is used, the capacitor will discharge at 5 μA to 0.2 V and then re-enable the pass MOSFET. When the device is disabled, CT is pulled to GND through a 100-kΩ resistor. The timer period must be chosen long enough to allow the external load capacitance to charge. The fault timer period is selected using the following formula where TFAULT is the minimum timer period in seconds and CCT is in Farads. C CT = TFAULT 38.9 ´ 10 3 (1) This equation does not account for component tolerances. In autoretry versions, the second and subsequent retry timer periods will be approximately 85 % as long as the first retry period. In autoretry versions, the fault timer discharges the capacitor for a nominal tSD in seconds with CCT in Farads per the following equation. 6 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com tSD = 1.0 ´ 106 ´ CCT (2) The nominal ratio of on-to-off times represents about a 3% duty cycle when a hard fault is present on the output of an autoretry version part. FLT: Open-drain output that pulls low on any condition that causes the output to open. These conditions are either an overload with a fault time-out, or a thermal shutdown. FLT becomes operational before UV, when VIN is greater than 1 V. IFLT may not be set below 1 A to maintain the Fault Current Limit threshold accuracy listed in Electrical Characteristics. Some parts may not current limit or fault as expected. GND: This is the most negative voltage in the circuit and is used as reference for all voltage measurements unless otherwise specified. IFLT: A resistor connected from this pin to ground sets the fault current threshold (IFAULT). Currents between the fault current threshold and the current limit are permitted to flow unimpeded for the period set by the fault timer programmed on CT. This permits loads to draw momentary surges while maintaining the protection provided by a lower average-current limit. The fault timer implemented by CT starts charging CT when current through VIN exceeds IFAULT. If the current doesn’t drop below the IFAULT level before VCT reaches its upper threshold, the output will be shut off. The fault current resistor is set by the following formula where IFAULT is in Amperes and RRFLT is in Ohms. RRFLT = 200kW IFAULT (3) ILIM: A resistor connected from this pin to ground sets ILIM. The TPS2590 will limit current to ILIM. If the current doesn’t drop below the IFAULT level before the timer times out then the output will be shut off. RLIM is set by the formula: RLIM = 201kW ILIM (4) ILIM must be set sufficiently larger than IFAULT to ensure that lLIM could never be less than IFAULT, even after taking tolerances into account. EN: When this pin is pulled low, the IC is enabled. The input threshold is hysteretic, allowing the user to program a startup delay with an external RC circuit. EN is pulled to VIN by a 10-MΩ resistor, pulled to GND by 16.8 MΩ and is clamped to ground by a 7-V Zener diode. Because high impedance pullup/down resistors are used to reduce current draw, any external FET controlling this pin should be low leakage. IN: Input voltage to the TPS2590. The recommended operating voltage range is 3 V to 18 V. All VIN pins should be connected together and to the power source. OUT: Output connection for the TPS2590. When switched on the output voltage will be approximately: VOUT = VIN - 0.04 ´ IOUT (5) All OUT pins should be connected together and to the load. RTRY: When pulled low the TPS2590 will attempt to restart after a fault. If left floating or pulled high the TPS2590 will latch off after a fault. This pin is internally clamped at 3 V and is pulled to the internal 3-V supply by a diode in series with a 100-kΩ resistor. Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 7 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com TYPICAL CHARACTERISTICS CURRENT LIMIT vs JUNCTION TEMPERATURE FAULT CURRENT vs JUNCTION TEMPERATURE 2.20 2.20 RMAX = 100 kW 2.15 IFAULT – Fault Current – A 2.10 IL IM – Current Limit – A RFLT = 100 k 2.15 2.50 2.00 1.95 1.90 1.85 1.80 –50 0 50 100 150 2.10 2.50 2.00 1.95 1.90 1.85 TJ – Junction Temperature– °C 1.80 –50 TJ 50 100 – Junction Temperature – °C Figure 3. Figure 4. POWER LIMIT vs JUNCTION TEMPERATURE SLEEP MODE SUPPLY CURRENT (VCC = 12 V) vs JUNCTION TEMPERATURE 8.0 7.5 0 150 24 ILOAD = 1 A Sleep Mode 7.0 ISUPPLY – Supply Current – mA PLIMIT – Power Limit Level – W 22 6.5 6.0 5.5 5.0 4.5 4.0 20 18 16 14 12 3.5 3.0 –50 0 TJ 50 100 150 10 –50 – Junction Temperature – °C Figure 5. 8 TJ 0 50 100 – Junction Temperature – °C 150 Figure 6. Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 7. 12-V Startup into 15-Ω, 700-μF Load Figure 8. 12-V Input Addded to an 8-Ω Load Figure 9. Failed Startup into a 4-Ω Load Figure 10. 12-V Soft Overload, 3-A to 4.2-A, Power Limit Not Tripped Figure 11. Firm Overload, 3-A to 5.4 A, Power Limit Tripped Figure 12. 12-V Hard Overload, 3.6-A Load then Short Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 9 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) 10 Figure 13. Power Dissipation During 12-V Startup into a 60-Ω, 660-μF Load Figure 14. Power Dissipation During 12-V Startup into a 15-Ω, 110-μF Load Figure 15. Startup into a 1-Ω Load Figure 16. Firm Overload, Load Stepped From 3.8 A to 5.5 A Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 17. Hard Overload, Load Stepped from 3.8 A to 7.1 A Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 11 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com APPLICATION INFORMATION Maximum Load at Startup The power limiting function of the TPS2590 provides very effective protection for the internal FET. Expectedly, there is a supply voltage dependent maximum load which the device will be able to power up. Loads above this level may cause the device to shut off current before startup is complete. Neglecting any load capacitance, the maximum load ( minimum load resistance ) is calculated using the equation; V 2 RMIN = IN 12 (6) Adding load capacitance may reduce the maximum load which can be present at start up. If EN is tied to GND at startup and IN does not ramp quickly the TPS2590 may momentarily turn off then on during startup. This can happen if a capacitive load momentarily pulls down the input voltage below the UV threshold. If necessary, this can be avoided by delaying EN assertion until VIN is fully up. Transient Protection The need for transient protection in conjunction with hot-swap controllers should always be considered. When the TPS2590 interrupts current flow, input inductance generates a positive voltage spike on the input and output inductance generates a negative voltage spike on the output. Such transients can easily exceed twice the supply voltage if steps are not taken to address the issue. Typical methods for addressing transients include; • Minimizing lead length/inductance into and out of the device. • Transient Voltage Suppressors (TVS) on the input to absorb inductive spikes. • Shottky diode across the output to absorb negative spikes. • A combination of ceramic and electrolytic capacitors on the input and output to absorb energy. The following equation estimates the magnitude of these voltage spikes: Where; VSPIKE(absolute ) = VNOM + ILOAD ´ L • • • • C (7) VNOM equals the nominal supply voltage. ILOAD equals the load current. C equals the capacitance present at the input or output of the TPS2590. L equals the effective inductance seen looking into the source or the load. The inductance due to a straight length of wire equals approximately. Where; æ 4´L ö - 0.75 ÷ (nH) Lstraightwire » 0.2 ´ L ´ ln ç è D ø • • (8) L equals the length of the wire. D equals wire diameter. Some applications may require the addition of a TVS to prevent transients from exceeding the absolute ratings if sufficient capacitance cannot be included. 12 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 TPS2590 SLUS960D – JULY 2009 – REVISED OCTOBER 2011 www.ti.com REVISION HISTORY Changes from Original (July 2009) to Revision A • Page Changed , fixed typo in Application ...................................................................................................................................... 1 Changes from Revision A (July 2010) to Revision B Page • Added UL Listed - File Number E169910 ............................................................................................................................. 1 • Changed , updated application diagram ............................................................................................................................... 1 Changes from Revision B (August 2010) to Revision C Page • Added updated IFLT description ........................................................................................................................................... 7 • Changed Current Limit vs Junction Temperature graph ....................................................................................................... 8 Changes from Revision C (September 2011) to Revision D Page • Changed Figure 7 through Figure 17. .................................................................................................................................. 8 • Changed Figure 7 through Figure 17. .................................................................................................................................. 9 • Changed Figure 7 through Figure 17. ................................................................................................................................ 10 • Changed Figure 7 through Figure 17. ................................................................................................................................ 11 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS2590 13 PACKAGE OPTION ADDENDUM www.ti.com 20-Oct-2011 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) TPS2590RSAR ACTIVE QFN RSA 16 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS2590RSAT ACTIVE QFN RSA 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Samples (Requires Login) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS2590RSAR QFN RSA 16 3000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 TPS2590RSAT QFN RSA 16 250 180.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS2590RSAR QFN RSA 16 3000 367.0 367.0 35.0 TPS2590RSAT QFN RSA 16 250 210.0 185.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed. TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI regarding third-party products or services does not constitute a license 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 significant portions 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. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety-critical applications. In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms. No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties have executed a special agreement specifically governing such use. Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such components to meet such requirements. Products Applications Audio www.ti.com/audio Automotive and Transportation www.ti.com/automotive Amplifiers amplifier.ti.com Communications and Telecom www.ti.com/communications Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers DLP® Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps DSP dsp.ti.com Energy and Lighting www.ti.com/energy Clocks and Timers www.ti.com/clocks Industrial www.ti.com/industrial Interface interface.ti.com Medical www.ti.com/medical Logic logic.ti.com Security www.ti.com/security Power Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap TI E2E Community e2e.ti.com Wireless Connectivity www.ti.com/wirelessconnectivity Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated