Product Folder Sample & Buy Support & Community Tools & Software Technical Documents Reference Design AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 AMC1200-Q1 Fully-Differential Isolation Amplifier 1 Features 2 Applications • • • 1 • • • • • • • • • • • Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results: – Temperature Grade 2: –40°C to 105°C – HBM ESD Classification Level H2 – CDM ESD Classification Level C3B ±250-mV Input Voltage Range Optimized for Shunt Resistors Very Low Nonlinearity: 0.075% (max) with 5-V High-Side Supply Low Offset Error: 1.5 mV (max) Low Noise: 3.1 mVRMS (typical) Low High-Side Supply Current: 8 mA (max) at 5 V Input Bandwidth: 60 kHz (min) Fixed Gain: 8 (0.5% accuracy) High Common-Mode Rejection Ratio: 108 dB (typical) 3.3-V Operation on Low-Side Certified Galvanic Isolation: – UL1577 and VDE V 0884-10 Approved – Isolation Voltage: 4250 VPEAK – Working Voltage: 1200 VPEAK – Transient Immunity: 10 kV/µs (min) Typical 10-Year Lifespan at Rated Working Voltage (see Application Report, SLLA197) Isolated Shunt-Resistor-Based Current or Voltage Sensing in: – Traction Inverters – On-Board Chargers – DC-DC Converters – Battery Management Systems 3 Description The AMC1200-Q1 is a precision isolation amplifier with the output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry. The input of the AMC1200-Q1 is optimized for direct connection to shunt resistors or other low-voltage level signal sources. The performance of the device supports accurate current control, resulting in systemlevel power saving and (especially in motor-control applications) lower torque ripple. The common-mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply. The AMC1200-Q1 is available in a wide-body, 8-pin SOIC package (DWV) and a gullwing, 8-pin SOP package (DUB). Device Information(1) PART NUMBER AMC1200-Q1 PACKAGE BODY SIZE (NOM) SOP (8) 9.50 mm × 6.62 mm SOIC (8) 5.85 mm × 7.50 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic VDD1 VDD2 VDD2 = 5 V 2.55 V 0V ±2 V VOUTP VINP ±250 mV VDD2 = 3.3 V VOUTN VINN 1.29 V GND1 ±2 V GND2 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configurations and Functions ....................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 4 4 4 4 5 6 Absolute Maximum Ratings ..................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Typical Characteristics .............................................. Detailed Description ............................................ 11 7.1 Overview ................................................................. 11 7.2 Functional Block Diagram ....................................... 11 7.3 Feature Description................................................. 12 7.4 Device Functional Modes........................................ 14 8 Application and Implementation ........................ 15 8.1 Application Information............................................ 15 8.2 Typical Applications ................................................ 15 9 Power Supply Recommendations...................... 18 10 Layout................................................................... 19 10.1 Layout Guidelines ................................................. 19 10.2 Layout Example .................................................... 19 11 Device and Documentation Support ................. 20 11.1 11.2 11.3 11.4 11.5 Documentation Support ........................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 20 20 20 20 20 12 Mechanical, Packaging, and Orderable Information ........................................................... 20 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (September 2012) to Revision A Page • Deleted last Features bullet ................................................................................................................................................... 1 • Added front-page image caption, ESD Ratings table, Feature Description section, Device Functional Modes section, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section....................................... 1 • Added TI Design .................................................................................................................................................................... 1 • Changed front-page graphic .................................................................................................................................................. 1 • Changed Pin Configurations and Functions section: condensed pin out drawing into one because packages have identical pin layout ................................................................................................................................................................. 3 • Moved Electrical Characteristics table before Regulatory Information table to comply with latest format ............................ 5 • Added PSRR to test conditions of Output, PSRR parameter in Electrical Characteristics table .......................................... 5 • Changed CTI parameter in Package Characteristics table: added DWV package row ...................................................... 13 • Added sentence to Design Requirements section .............................................................................................................. 16 2 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 5 Pin Configurations and Functions DUB and DWV Packages 8-Pin SOP and SOIC Top View VDD1 1 8 VDD2 VINP 2 7 VOUTP VINN 3 6 VOUTN GND1 4 5 GND2 Pin Functions PIN NO. 1 NAME I/O DESCRIPTION High-side power supply, 4.5 V to 5.5 V. See the Power Supply Recommendations section for decoupling recommendations. VDD1 — 2 VINP I Noninverting analog input 3 VINN I Inverting analog input 4 GND1 — High-side analog ground 5 GND2 — Low-side analog ground 6 VOUTN O Inverting analog output with self-adjusting, common-mode voltage 7 VOUTP O Noninverting analog output with self-adjusting, common-mode voltage 8 VDD2 — Low-side power supply, 2.7 V to 5.5 V. See the Power Supply Recommendations section for decoupling recommendations. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 3 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating ambient temperature range (unless otherwise noted) (1) MIN MAX UNIT –0.5 6 V GND1 – 0.5 VDD1 + 0.5 V –10 10 mA Junction temperature, TJ –40 150 °C Storage temperature, Tstg –65 150 °C Supply voltage VDD1 to GND1 or VDD2 to GND2 Input voltage VINP, VINN Input current VINP, VINN, VOUTP, VOUTN (1) 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 is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Human-body model (HBM), per AEC-Q100, Classification Level H2 Electrostatic discharge (1) ±2500 Charged-device model (CDM), per AEC-Q100, Classification Level C3B (2) ±1000 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating ambient temperature range (unless otherwise noted) VDD1 High-side supply voltage VDD2 Low-side supply voltage VVINP, VVINN Absolute input voltage VIN Differential input voltage VVINP – VVINN VCM Common-mode input voltage (VVINP + VVIN) / 2 TA Operating ambient temperature MIN NOM MAX 4.5 5 5.5 V 2.7 5 5.5 V GND1 – 0.32 VDD1 + 0.16 –250 250 GND1 – 0.16 –40 25 UNIT V mV VDD1 V 105 °C 6.4 Thermal Information AMC1200-Q1 THERMAL METRIC (1) DUB (SOP) DWV (SOIC) 8 PINS 8 PINS UNIT RθJA Junction-to-ambient thermal resistance 75.1 102.8 °C/W RθJC(top) Junction-to-case (top) thermal resistance 61.6 49.8 °C/W RθJB Junction-to-board thermal resistance 39.8 56.6 °C/W ψJT Junction-to-top characterization parameter 27.2 16 °C/W ψJB Junction-to-board characterization parameter 39.4 55.2 °C/W (1) 4 For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 6.5 Electrical Characteristics Minimum and maximum specifications are at TA = –40°C to +105°C, VDD1 = 4.5 V to 5.5 V, and VDD2 = 2.7 V to 5.5 V. Typical specifications are at TA = 25°C, VDD1 = 5 V, and VDD2 = 3.3 V (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VClipping Input voltage with clipping output VIO Input offset voltage –1.5 ±0.2 1.5 mV Input offset thermal drift –10 ±1.5 10 µV/°C CMRR Common-mode rejection ratio CI Input capacitance CID Differential input capacitance RID Differential input resistance VVINP – VVINN ±320 VIN from 0 V to 5 V at 0 Hz 108 VIN from 0 V to 5 V at 50 kHz dB 95 VINP to GND1 or VINN to GND1 Small-signal bandwidth mV 3 pF 3.6 pF 28 kΩ 60 100 kHz –0.5% ±0.05% 0.5% –1% ±0.05% 1% OUTPUT G EG Nominal gain Gain error 8 Initial, TA = 25°C Gain error thermal drift Nonlinearity ±56 4.5 V ≤ VDD2 ≤ 5.5 V –0.075% ±0.015% 0.075% 2.7 V ≤ VDD2 ≤ 3.6 V –0.1% ±0.023% 0.1% Nonlinearity thermal drift Output noise PSRR Power-supply rejection ratio Rise and fall time VIN to VOUT signal delay CMTI Common-mode transient immunity Output common-mode voltage RO ppm/°C 2.4 ppm/°C VVINP = VVINN = 0 V 3.1 mVRMS PSRR vs VDD1, 10-kHz ripple 80 PSRR vs VDD2, 10-kHz ripple 61 0.5-V step, 10% to 90% dB 3.66 6.6 0.5-V step, 50% to 10%, unfiltered output 1.6 3.3 0.5-V step, 50% to 50%, unfiltered output 3.15 5.6 0.5-V step, 50% to 90%, unfiltered output 5.26 9.9 VCM = 1 kV, TA = 25°C 8 15 2.7 V ≤ VDD2 ≤ 3.6 V 1.15 1.29 1.45 4.5 V ≤ VDD2 ≤ 5.5 V 2.4 2.55 2.7 µs µs kV/µs V Short-circuit current 20 mA Output resistance 2.5 Ω POWER SUPPLY IDD1 High-side supply current IDD2 Low-side supply current PDD1 High-side power dissipation PDD2 Low-side power dissipation 5.4 8 2.7 V ≤ VDD2 ≤ 3.6 V 3.8 6 4.5 V ≤ VDD2 ≤ 5.5 V 4.4 7 27 44 2.7 V≤ VDD2 ≤ 3.6 V 11.4 21.6 22 38.5 4.5 V ≤ VDD2 ≤ 5.5 V Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 mA mA mW mW 5 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 6.6 Typical Characteristics TA = 25°C, VDD1 = VDD2 = 5 V, VVINP = –250 mV to 250 mV, and VVINN = 0 V (unless otherwise noted) 2 2 1.5 1.5 1 1 Input Offset (mV) Input Offset (mV) VDD2 = 2.7 V to 3.6 V 0.5 0 −0.5 0.5 0 −0.5 −1 −1 −1.5 −1.5 −2 4.5 4.75 5 VDD1 (V) 5.25 −2 2.7 5.5 3 3.3 3.6 VDD2 (V) Figure 1. Input Offset vs High-Side Supply Voltage Figure 2. Input Offset vs Low-Side Supply Voltage 2 2 1.5 1 1 Input Offset (mV) Input Offset (mV) VDD2 = 4.5 V to 5.5 V 1.5 0.5 0 −0.5 0.5 0 −0.5 −1 −1 −1.5 −1.5 −2 4.5 4.75 5 VDD2 (V) 5.25 −2 −40 −25 −10 5.5 130 40 120 30 110 20 100 90 80 −30 Figure 5. Common-Mode Rejection Ratio vs Input Frequency 6 110 125 −10 60 100 95 0 −20 1 10 Input Frequency (kHz) 80 10 70 50 0.1 20 35 50 65 Temperature (°C) Figure 4. Input Offset vs Temperature Input Current (µA) CMRR (dB) Figure 3. Input Offset vs Low-Side Supply Voltage 5 −40 −400 −300 −200 −100 0 100 Input Voltage (mV) 200 300 400 Figure 6. Input Current vs Input Voltage Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 Typical Characteristics (continued) TA = 25°C, VDD1 = VDD2 = 5 V, VVINP = –250 mV to 250 mV, and VVINN = 0 V (unless otherwise noted) 120 1 0.8 0.6 0.4 100 Gain Error (%) Input Bandwidth (kHz) 110 90 80 0.2 0 −0.2 −0.4 −0.6 70 −0.8 60 −40 −25 −10 5 20 35 50 65 Temperature (°C) 80 95 −1 4.5 110 125 Figure 7. Input Bandwidth vs Temperature 5.25 5.5 1 VDD2 = 2.7 V to 3.6 V 0.6 0.6 0.4 0.4 0.2 0 −0.2 0.2 0 −0.2 −0.4 −0.4 −0.6 −0.6 −0.8 −0.8 −1 2.7 3 3.3 VDD2 = 4.5 V to 5.5 V 0.8 Gain Error (%) Gain Error (%) 5 VDD1 (V) Figure 8. Gain Error vs High-Side Supply Voltage 1 0.8 −1 4.5 3.6 VDD2 (V) Figure 9. Gain Error vs Low-Side Supply Voltage 0.8 0 0.6 −10 Normalized Gain (dB) 10 0.2 0 −0.2 −0.4 −50 −70 80 95 Figure 11. Gain Error vs Temperature 110 125 5.5 −40 −0.8 20 35 50 65 Temperature (°C) 5.25 −30 −60 5 5 VDD2 (V) −20 −0.6 −1 −40 −25 −10 4.75 Figure 10. Gain Error vs Low-Side Supply Voltage 1 0.4 Gain Error (%) 4.75 −80 1 10 100 Input Frequency (kHz) 500 Figure 12. Normalized Gain vs Input Frequency Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 7 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com Typical Characteristics (continued) TA = 25°C, VDD1 = VDD2 = 5 V, VVINP = –250 mV to 250 mV, and VVINN = 0 V (unless otherwise noted) 0 5 −30 4.5 −60 VOUTP VOUTN 4 Output Voltage (V) Output Phase (°) −90 −120 −150 −180 −210 −240 3.5 3 2.5 2 1.5 −270 1 −300 0.5 −330 −360 1 10 100 Input Frequency (kHz) 0 −400 1000 Figure 13. Output Phase vs Input Frequency −200 −100 0 100 Input Voltage (mV) 200 300 400 Figure 14. Output Voltage vs Input Voltage 3.6 3.3 −300 0.1 VDD2 = 2.7 V to 3.6 V VOUTP VOUTN 3 0.08 0.06 2.4 Nonlinearity (%) Output Voltage (V) 2.7 2.1 1.8 1.5 1.2 0.04 0.02 0 −0.02 −0.04 0.9 −0.06 0.6 −0.08 0.3 0 −400 −300 −200 −100 0 100 Input Voltage (mV) 200 300 −0.1 4.5 400 Figure 15. Output Voltage vs Input Voltage VDD2 = 2.7 V to 3.6 V 5.5 0.06 0.06 0.04 0.04 0.02 0 −0.02 −0.04 0.02 0 −0.02 −0.04 −0.06 −0.06 −0.08 −0.08 3 3.3 3.6 −0.1 4.5 VDD2 (V) Figure 17. Nonlinearity vs Low-Side Supply Voltage VDD2 = 4.5 V to 5.5 V 0.08 Nonlinearity (%) Nonlinearity (%) 5.25 0.1 0.08 8 5 VDD1 (V) Figure 16. Nonlinearity vs High-Side Supply Voltage 0.1 −0.1 2.7 4.75 4.75 5 VDD2 (V) 5.25 5.5 Figure 18. Nonlinearity vs Low-Side Supply Voltage Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 Typical Characteristics (continued) TA = 25°C, VDD1 = VDD2 = 5 V, VVINP = –250 mV to 250 mV, and VVINN = 0 V (unless otherwise noted) 0.1 0.1 VDD2 = 3 V VDD2 = 5 V 0.08 0.06 0.06 0.04 0.04 Nonlinearity (%) Nonlinearity (%) 0.08 0.02 0 −0.02 −0.04 0.02 0 −0.02 −0.04 −0.06 −0.06 −0.08 −0.08 −0.1 −250 −200 −150 −100 −50 0 50 100 Input Voltage (mV) 150 200 −0.1 −40 −25 −10 250 2600 100 2400 90 2200 80 2000 70 1800 1600 1400 110 125 20 800 10 100 VDD1 VDD2 40 30 10 95 50 1000 1 80 60 1200 600 0.1 20 35 50 65 Temperature (°C) Figure 20. Nonlinearity vs Temperature PSRR (dB) Noise (nV/sqrt(Hz)) Figure 19. Nonlinearity vs Input Voltage 5 0 1 10 Ripple Frequency (kHz) Frequency (kHz) Figure 21. Output Noise Density vs Frequency 100 Figure 22. Power-Supply Rejection Ratio vs Ripple Frequency 10 Output Rise/Fall Time (µs) 9 8 500 mV/div 7 6 5 4 200 mV/div 3 2 500 mV/div 1 0 −40 −25 −10 5 20 35 50 65 Temperature (°C) 80 95 110 125 Figure 23. Output Rise and Fall Time vs Temperature Time (2 ms/div) Figure 24. Full-Scale Step Response Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 9 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com Typical Characteristics (continued) TA = 25°C, VDD1 = VDD2 = 5 V, VVINP = –250 mV to 250 mV, and VVINN = 0 V (unless otherwise noted) 10 5 8 Signal Delay (µs) 7 6 5 4 3 2 1 0 −40 −25 −10 5 20 35 50 65 Temperature (°C) 80 95 VDD2 rising VDD2 falling Output Common−Mode Voltage (V) 50% to 10% 50% to 50% 50% to 90% 9 4 3 2 1 0 3.5 110 125 Figure 25. Output Signal Delay Time vs Temperature 3.7 3.8 3.9 4 4.1 VDD2 (V) 4.2 4.3 4.4 4.5 Figure 26. Output Common-Mode Voltage vs Low-Side Supply Voltage 5 8 VDD2 = 2.7 V to 3.6 V VDD2 = 4.5 V to 5.5 V Output Common−Mode Voltage (V) 3.6 IDD1 IDD2 7 Supply Current (mA) 4 3 2 6 5 4 3 2 1 1 0 −40 −25 −10 5 20 35 50 65 Temperature (°C) 80 95 0 4.5 110 125 Figure 27. Output Common-Mode Voltage vs Temperature 4.75 5 Supply Voltage (V) 5.25 5.5 Figure 28. Supply Current vs Supply Voltage 8 8 7 6 6 Supply Current (mA) IDD2 (mA) VDD2 = 2.7 V to 3.6 V 7 5 4 3 2 1 0 2.7 5 4 3 2 1 3 3.3 3.6 IDD1 IDD2 0 −40 −25 −10 VDD2 (V) Figure 29. Low-Side Supply Current vs Low-Side Supply Voltage 10 5 20 35 50 65 Temperature (°C) 80 95 110 125 Figure 30. Supply Current vs Temperature Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 7 Detailed Description 7.1 Overview The AMC1200-Q1 is a fully-differential precision isolation amplifier. The input stage of the device consists of a second-order, delta-sigma (ΔΣ) modulator, voltage reference, clock generator, and drivers for the capacitive isolation barrier. The modulator converts the analog input signal to the digital domain. The drivers transfer the output of the modulator and the clock signal across the isolation barrier that separates the high- and low-voltage domains. The received bitstream and clock signals are synchronized and processed by a third-order analog filter with a nominal gain of 8 on the low-side and presented as a differential output of the device, as shown in the Functional Block Diagram section. The SiO2-based capacitive isolation barrier supports a high level of magnetic field immunity, as described in application report, ISO72x Digital Isolator Magnetic-Field Immunity (SLLA181). The digital modulation used in the AMC1200-Q1 and the isolation barrier characteristics result in high reliability and common-mode transient immunity. 7.2 Functional Block Diagram VDD1 VDD2 Isolation Barrier 2.5-V Reference 2.56-V Reference DATA TX RX Retiming and 3rd-Order Active Low-Pass Filter VINP û Modulator VINN TX VOUTP VOUTN RX CLK RC Oscillator GND1 GND2 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 11 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 7.3 Feature Description 7.3.1 Insulation Characteristics over recommended operating conditions (unless otherwise noted) PARAMETER VIORM VPR TEST CONDITIONS MIN TYP Maximum working insulation voltage Input to output test voltage VIOTM Transient overvoltage VISO Insulation voltage per UL RS Insulation resistance PD Pollution degree MAX UNIT 1200 VPEAK Qualification test: after input/output safety test subgroup 2/3, VPR = VIORM × 1.2, t = 10 s, partial discharge < 5 pC 1440 Qualification test: method a, after environmental tests subgroup 1, VPR = VIORM × 1.6, t = 10 s, partial discharge < 5 pC 1920 100% production test: method b1, VPR = VIORM × 1.875, t = 1 s, partial discharge < 5 pC 2250 Qualification test: t = 60 s 4250 Qualification test: VTEST = VISO, t = 60 s 4250 100% production test: VTEST = 1.2 × VISO, t = 1 s 5100 VPEAK VPEAK VPEAK > 109 VIO = 500 V at TS Ω 2 Table 1. IEC 61000-4-5 Ratings PARAMETER Surge immunity TEST CONDITIONS 1.2-μs and 50-μs voltage surge or 8-μs and 20-μs current surge VALUE UNIT ±6000 V Table 2. IEC 60664-1 Ratings PARAMETER Basic isolation group Installation classification TEST CONDITIONS SPECIFICATION Material group II Rated mains voltage ≤ 150 VRMS I-IV Rated mains voltage ≤ 300 VRMS I-IV Rated mains voltage ≤ 400 VRMS I-III Rated mains voltage < 600 VRMS I-III 7.3.2 IEC Safety Limiting Values Safety limiting intends to minimize potential damage to the isolation barrier upon failure of input or output (I/O) circuitry. A failure of the I/O circuitry can cause low resistance to ground or the supply and, without current limiting, dissipate sufficient power to overheat the die and damage the isolation barrier, potentially leading to secondary system failures. PARAMETER IS Safety input, output, or supply current TC Maximum case temperature TEST CONDITIONS MIN θJA = 246°C/W, VIN = 5.5 V, TJ = 150°C, TA = 25°C –10 TYP MAX UNIT 10 mA 150 °C The safety-limiting constraint is the maximum junction temperature specified in the Absolute Maximum Ratings table. The power dissipation and junction-to-air thermal impedance of the device installed in the application hardware determine the junction temperature. The assumed junction-to-air thermal resistance in the Thermal Information table is that of a device installed in the JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages and is conservative. The power is the recommended maximum input voltage times the current. The junction temperature is then the ambient temperature plus the power times the junction-toair thermal resistance. 12 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 7.3.3 Package Characteristics Creepage and clearance requirements should be applied according to the specific equipment isolation standards of a specific application. Take care to maintain the creepage and clearance distance of the board design to ensure that the mounting pads of the isolator on the printed-circuit-board (PCB) do not reduce this distance. Creepage and clearance on a PCB become equal according to the measurement techniques shown in the TI Isolation Glossary. Techniques such as inserting grooves and/or ribs on the PCB are used to help increase these specifications. PARAMETER TEST CONDITIONS MIN L(I01) Minimum air gap (clearance) Shortest pin-to-pin distance through air DWV package 8 DUB package 7 L(I02) Minimum external tracking (creepage) Shortest pin-to-pin distance across the package surface DWV package 8 DUB package 7 CTI Tracking resistance (comparative tracking index) DIN IEC 60112/VDE 0303 part 1 DWV package 600 DUB package 400 Minimum internal gap (internal clearance) Distance through the insulation RIO MAX UNIT mm mm V 0.014 Input to output, VIO = 500 V, all pins on each side of the barrier tied together to create a two-pin device, TA < 85°C Isolation resistance TYP mm > 1012 Ω Input to output, VIO = 500 V, 85°C ≤ TA < TA max 11 > 10 CIO Barrier capacitance input to output VI = 0.5 VPP at 1 MHz 1.2 pF CI Input capacitance to ground VI = 0.5 VPP at 1 MHz 3 pF 7.3.4 Regulatory Information VDE/IEC UL Certified according to VDE V 0884-10 Recognized under 1577 component recognition program Certificate number: 40016131 File number: E181974 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 13 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 7.3.5 Analog Input The analog input voltage range (VIN = VVINP – VVINN) is tailored to directly accommodate a voltage drop across a shunt resistor used for current sensing. Note that there are two restrictions on the analog input signals. If the absolute input voltage on either VINP or VINN exceeds the absolute maximum range of GND1 – 0.5 V to VDD1 + 0.5 V, the input current must be limited to 10 mA to prevent damage of the integrated input protection diodes. In addition, the linearity and the noise performance of the device are ensured only when the differential analog input voltage remains within ±250 mV. The differential analog input of the AMC1200-Q1 is a switched-capacitor circuit based on a second-order modulator stage that digitizes the input signal into a 1-bit output stream. The device compares the differential input signal VIN against the internal 2.5-V reference using internal capacitors that are continuously charged and discharged with a typical frequency of 10 MHz. With the S1 switches closed, CID charges to the voltage difference across VINP and VINN. For the discharge phase, both S1 switches open first and then both S2 switches close. CID discharges to approximately GND1 + 0.8 V during this phase. Figure 31 shows the simplified equivalent input circuitry. VDD1 GND1 GND1 CINP = 3 pF 3 pF 400 W VINP S2 GND1 + 0.8 V S1 S1 400 W Equivalent Circuit VINP RIN = 28 kW CIND = 3.6 pF VINN VINN GND1 + 0.8 V S2 3 pF CINN = 3 pF GND1 RIN = GND1 1 fCLK x CDIFF GND1 (fCLK = 10 MHz) Figure 31. Equivalent Input Circuit 7.4 Device Functional Modes The AMC1200-Q1 is operational when the power supplies VDD1 and VDD2 are applied as specified in the Recommended Operating Conditions section. The AMC1200-Q1 does not have any additional functional modes. 14 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The AMC1200-Q1 offers unique linearity, high input common-mode rejection, low dc errors, and low temperature drift. These features make the AMC1200-Q1 a robust, high-performance isolation amplifier for automotive applications where high voltage isolation is required. 8.2 Typical Applications 8.2.1 Traction Inverter Figure 32 shows a typical operation of the AMC1200-Q1 for current sensing in a traction inverter application. Measurement of the phase current is done through the shunt resistor, RSHUNT (in this case, a two-pin shunt). The differential input and the high common-mode transient immunity of the AMC1200-Q1 ensure reliable and accurate operation even in high-noise environments (such as the power stage of the traction inverter). HV+ Floating Power Supply Gated Drive Circuit Isolation Barrier TMC320 C/F28xxx R1 AMC1200-Q1 VDD1 D1 5.1 V C5(1) 0.1 mF VINP R3 12 W RSHUNT To Load VOUTP C2(1) 330 pF C3 10 pF (Optional) Power Supply VDD2 C1(1) 0.1 mF R2 12 W ADC C4 10 pF (Optional) VINN VOUTN GND1 GND2 Gated Drive Circuit HV- (1) Place these capacitors as close as possible to the AMC1200-Q1. Figure 32. Typical Application Diagram Additionally, the AMC1200-Q1 can also be used for isolated voltage measurement of the dc-link as described in the Isolated Voltage Measurement section. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 15 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com Typical Applications (continued) 8.2.1.1 Design Requirements Table 3 lists the parameters for the typical application in Figure 32. Table 3. Design Requirements PARAMETER VALUE High-side supply voltage 5V Low-side supply voltage 3 V, or 3.3 V, or 5 V Voltage drop across shunt for linear response ±250 mV (max) 8.2.1.2 Detailed Design Procedure The high-side power supply (VDD1) for the AMC1200-Q1 is derived from the power supply of the upper gate driver. Further details are provided in the Power Supply Recommendations section. The floating ground reference (GND1) is derived from one of the ends of the shunt resistor that is connected to the negative input of the AMC1200-Q1 (VINN). If a four-pin shunt is used, the inputs of the AMC1200-Q1 are connected to the inner leads and GND1 is connected to one of the outer shunt leads. Use Ohm's Law to calculate the voltage drop across the shunt resistor (VSHUNT) for the desired current to be measured: VSHUNT = I × RSHUNT. Consider the following two restrictions to choose the proper value of the shunt resistor RSHUNT: • The voltage drop caused by the nominal current range must not exceed the recommended differential input voltage range: VSHUNT ≤ ±250 mV • The voltage drop caused by the maximum allowed overcurrent must not exceed the input voltage that causes a clipping output: VSHUNT ≤ VClipping For best performance, use an RC filter (components R2, R3, and C2 in Figure 32) to limit the noise bandwidth of the differential input signal. Limiting the value of resistors R2 and R3 to less than 24 Ω is recommended to avoid incomplete settling of the AMC1200-Q1 input circuitry (see Analog Input). Optionally, the common-mode capacitors C3 and C4 can be used to reduce charge dumping from the inputs. Mismatch in values of C3 and C4 leads to a common-mode error at the modulator input. In this case, choose the value of the differential filter capacitor C2 to be at least 10 times larger than the values of C3 and C4 to limit the effect of the common-mode error. NP0-type capacitors are recommended to be used for C2, C3 and C4. The differential output of the AMC1200-Q1 can either directly drive an analog-to-digital converter (ADC) input or can be further filtered before being processed by an ADC. For more information on the general procedure to design the filtering and driving stages for SAR ADCs, consult the TI Precision Designs 18 bit, 1Msps Data Acquisition Block Optimized for Lowest Distortion and Noise (SLAU515), and 18 bit Data Acquisition Block Optimized for Lowest Power (SLAU513) available for download at www.ti.com. 16 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 8.2.1.3 Application Curves In traction inverter applications, the power switches must be protected in case of an overcurrent condition. To allow fast powering off of the system, a low delay caused by the isolation amplifier is required. Figure 33 shows the typical full-scale step response of the AMC1200-Q1. The high linearity of the AMC1200-Q1, as shown in Figure 34, allows design of traction inverters with low torque ripple. 0.1 VDD2 = 3 V VDD2 = 5 V 0.08 0.06 Nonlinearity (%) 500 mV/div 200 mV/div 0.04 0.02 0 −0.02 −0.04 −0.06 500 mV/div −0.08 −0.1 −250 −200 −150 −100 −50 0 50 100 Input Voltage (mV) Time (2 ms/div) 150 200 250 Figure 34. Typical Nonlinearity of the AMC1200-Q1 Figure 33. Step Response of the AMC1200-Q1 8.2.2 Isolated Voltage Measurement The AMC1200-Q1 can also be used for isolated voltage measurement applications, as shown in a simplified way in Figure 35. In such applications, usually a resistor divider (as conceptually indicated by R1 and R2) is used to scale the voltage amplitude. Choose the value of R2 to match the maximum voltage to be measured to the differential input voltage range VIN of the device. R2 and the input resistance RIN of the AMC1200-Q1 also create a resistance divider that results in additional gain error. With the assumption that R1 and RIN have a considerably higher value than R2, the resulting total gain error can be estimated using Equation 1: R GERRTOT = GERR + 2 RIN where • GERR = the gain error of the AMC1200-Q1 (1) L1 R1 R2 RIN L2 Figure 35. Voltage Measurement Application Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 17 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 9 Power Supply Recommendations In a typical frequency inverter application, the high-side power supply for the AMC1200-Q1 (VDD1) is derived from the system supply, as shown in Figure 36. For lowest cost, a Zener diode can be used to limit the voltage to 5 V ± 10%. Using a 0.1-µF, low-ESR decoupling capacitor is recommended for filtering VDD1. Using a 0.1-µF decoupling capacitor is also recommended for filtering the power-supply on the VDD2 side. For best performance, place the decoupling capacitors (C1 and C4) as close as possible to the VDD1 and VDD2 pins, respectively. If better filtering is required, an additional 1-µF to 10-µF capacitor can be used in parallel to C1 and C4. HV+ Floating Power Supply, 20 V R1 800 Gate Driver AMC1200-Q1 5.1 V VDD1 VDD2 3.3 V or 5.0 V C4 0.1 F C1 0.1 F Z1 1N751A GND1 GND2 RSHUNT VINP To Load R2 12 ADS7263 VINN Gate Driver VOUTP C3 330 pF VOUTN R3 12 HV- Figure 36. Zener Diode Based High-Side Supply For higher power efficiency and better performance, a buck converter can be used to generate VDD1; an example of such an approach is based on the LM5017. The PMP9480 reference design (Isolated Bias Supplies + Isolated Amplifier Combo for Line Voltage or Current Measurement) with performance test results and layout documentation is available from www.ti.com. The AMC1200-Q1 does not require any particular power sequence and is operational when both power supplies, VDD1 and VDD2, are applied. 18 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 10 Layout 10.1 Layout Guidelines A layout recommendation showing the critical placement of the decoupling capacitors placed as close as possible to the AMC1200-Q1 and maintaining a differential routing of the input signals is shown in Figure 37. To maintain the isolation barrier and the high CMTI of the device, the distance between the high-side ground (GND1) and the low-side ground (GND2) must be kept at maximum; that is, the entire area underneath the device must be kept free of any conducting materials. 10.2 Layout Example Top View 12 W SMD 0603 To Shunt 12 W SMD 0603 330 pF SMD 0603 LEGEND Top layer; copper pour and traces VDD1 VDD2 VINP VOUTP 0.1 µF SMD 1206 0.1mF 0.1 µF SMD 1206 AMC1200-Q1 VINN VOUTN GND1 GND2 To Filter or ADC SMD 1206 Clearance area. Keep free of any conductive materials. High-side area Controller-side area Via Figure 37. Layout Recommendation Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 19 AMC1200-Q1 SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 www.ti.com 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation For related documentation see the following: • LM5017 Data Sheet, SNVS783 • ADS7263 Data Sheet, SBAS523 • TI Isolation Glossary, SLLA353 • 18 bit, 1Msps Data Acquisition Block Optimized for Lowest Distortion and Noise, SLAU515 • 18 bit Data Acquisition Block Optimized for Lowest Power, SLAU513 • High-Voltage Lifetime of the ISO72x Family of Digital Isolators, SLLA197 • ISO72x Digital Isolator Magnetic-Field Immunity, SLLA181 • AMC1100: Replacement of Input Main Sensing Transformer in Inverters with Isolate Amplifier, SLAA552 • Isolated Current Sensing Reference Design Solution, 5A, 2kV, TIPD121 • Isolated Bias Supplies + Isolated Amplifier Combo for Line Voltage or Current Measurement, PMP9480 • LM5017 Data Sheet, SNVS783 11.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.4 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 11.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 20 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: AMC1200-Q1 PACKAGE OPTION ADDENDUM www.ti.com 2-Mar-2016 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) AMC1200STDUBRQ1 ACTIVE SOP DUB 8 350 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 105 1200Q AMC1200TDWVRQ1 ACTIVE SOIC DWV 8 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 105 1200Q (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. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. 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. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 2-Mar-2016 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. OTHER QUALIFIED VERSIONS OF AMC1200-Q1 : • Catalog: AMC1200 NOTE: Qualified Version Definitions: • Catalog - TI's standard catalog product Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 10-Mar-2016 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 AMC1200STDUBRQ1 SOP DUB 8 350 330.0 24.4 10.9 10.01 5.85 16.0 24.0 Q1 AMC1200TDWVRQ1 SOIC DWV 8 1000 330.0 16.4 12.05 6.15 3.3 16.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 10-Mar-2016 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) AMC1200STDUBRQ1 SOP DUB 8 350 358.0 335.0 35.0 AMC1200TDWVRQ1 SOIC DWV 8 1000 367.0 367.0 38.0 Pack Materials-Page 2 PACKAGE OUTLINE DWV0008A SOIC - 2.8 mm max height SCALE 2.000 SOIC C SEATING PLANE 11.5 0.25 TYP PIN 1 ID AREA 0.1 C 6X 1.27 8 1 2X 3.81 5.95 5.75 NOTE 3 4 5 0.51 0.31 0.25 C A 8X A 7.6 7.4 NOTE 4 B B 2.8 MAX 0.33 TYP 0.13 SEE DETAIL A (2.286) 0.25 GAGE PLANE 0 -8 0.46 0.36 1.0 0.5 (2) DETAIL A TYPICAL 4218796/A 09/2013 NOTES: 1. All linear dimensions are in millimeters. Dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm, per side. 4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm, per side. www.ti.com EXAMPLE BOARD LAYOUT DWV0008A SOIC - 2.8 mm max height SOIC 8X (1.8) SEE DETAILS SYMM 8X (0.6) SYMM 6X (1.27) (10.9) LAND PATTERN EXAMPLE 9.1 mm NOMINAL CLEARANCE/CREEPAGE SCALE:6X METAL SOLDER MASK OPENING SOLDER MASK OPENING 0.07 MAX ALL AROUND METAL 0.07 MIN ALL AROUND SOLDER MASK DEFINED NON SOLDER MASK DEFINED SOLDER MASK DETAILS 4218796/A 09/2013 NOTES: (continued) 5. Publication IPC-7351 may have alternate designs. 6. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com EXAMPLE STENCIL DESIGN DWV0008A SOIC - 2.8 mm max height SOIC 8X (1.8) SYMM 8X (0.6) SYMM 6X (1.27) (10.9) SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:6X 4218796/A 09/2013 NOTES: (continued) 7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 8. Board assembly site may have different recommendations for stencil design. www.ti.com 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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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