AL8862 DIODES | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
Features
Wide Input Voltage Range: 5V to 6 0V Output Current up to 1A Internal 60V NDMOS Switch Typical 4% Output Current Accuracy Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal High Efficiency (Up to 97%) LED Short-Circuit Protection Inherent Open-Circuit LED Protection Current-Sense Resistor Short-Circuit Protection Over Temperature Shutdown Up to 1MHz Switching Frequency SO-8EP Packages Available in Green Molding Compound (No Br, Sb) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments (Top View) SET GND NC VIN CTRL GND SW SW EP SO-8EP
Applications
Commercial & Industrial Lighting Appliances Interior Lighting Architecture Detail Lighting External Driver with Multiple Channels and Smart Lighting Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS ) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information ab out Diodes Incorporated‟s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bro mine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
Document number: DS40375 Rev. 1 - 2 2 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Typical Applications Circuit VIN SET CTRL GND SW RSET D1AL8862 VIN: 5-60V Pin Descriptions Pin Number Pin Name Function 1 SET Set Nominal Output Current Pin. Connect resistor R SET from this pin to VIN to define nominal average output current. 2,7 GND Ground of IC
3 NC No connection
4 VIN Input voltage (5 V to 60V). Decouple to ground with 10μF or higher X7R cer amic capacitor close to device. 5,6 SW Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to reduce EMI.
8 CTRL
Multi-function On/Off and brightness control pin: Leave floating for normal operation. Drive to voltage below 0.3V to turn off output current Drive with DC voltage (0.4V < VSET< 2.5V) to adjust output current from 10% to 100% of IOUT_NOM Drive with an analog voltage >2.6V output current will be 100% of IOUT_NOM A PWM signal (Low level <0.3V, High level >2.6V, transition times less than 1us) allows the output current to be adjusted over a wide range up to 100% Connect a capacitor from this pin to ground to increase soft-start time. (Default soft-start time = 0.1ms. Additional soft-start time is approx. 1.5ms/1nF) EP EP Exposed pad/TAB connects to GND and thermal mass for enhanced thermal impedance.
Document number: DS40375 Rev. 1 - 2 3 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Functional Block Diagram VDD Generator BG & Reference PWM/DC Dimming Current Monitor Hysteresis Control OTP Logic Ilimiter VIN CTRL SET SW GND PWM PWM OTP Ref Comp SW Driver AL88628 5, 64 2, 7 Absolute Maximum Ratings (Note 4) Symbol Parameter Rating Unit VIN Input Voltage -0.3 to 65 V VSW , VSET SW, SET Pin Voltage -0.3 to 65 V VCTRL CTRL Pin Input Voltage -0.3 to 6 V TA Operating Ambient Temperature -40 to +105 ° C TJ Operating Junction Temperature -40 to +150 ° C TSTG Storage Temperature Range -65 to +150 ° C TLEAD Lead Temperature (Soldering, 10sec) +300 ° C Note: 4. Stresses greater than those listed under “Absolute Maximum Ratings” m ay cause permanent damage to the device. Thes e are stress ratings only, and functional operation of the device at these or any other conditions beyo nd those indicated under “Recommended Operating Conditions” is not implied. Exposure to Absolute Maximum Ratings for exten ded periods may affect device reliability.
Document number: DS40375 Rev. 1 - 2 4 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 ESD Ratings Symbol Parameter Rating Unit VESD Human-Body Model (HBM) 2000 V Charged-Device Model (CDM) 500 Recommended Operating Conditions Symbol Parameter Min Max Unit VIN Input Voltage 5 60 V FSW Switching Frequency - 1 MHz IOUT Continuous Output Current - 1 A VCTRL Voltage Range for 10% to 100% DC Dimming Relative to GND 0.4 2.5 V VCTRL_HIGH Voltage High for PWM Dimming Relative to GND 2.6 5.5 V VCTRL_LOW Voltage Low for PWM Dimming Relative to GND 0 0.3 V TA Operating Ambient Temperature -40 +105 ° C TJ Operating Junction Temperature -40 +125 ° C Thermal Information (Note 5) Symbol Parameter Rating Unit θJA Junction-To-Ambient Thermal Resistance 65 ° C/W θJC Junction-To-Case(Top) Thermal Resistance 22.4 ° C/W Note: 5. Device mounted on 2″×2″ FR-4 substrate PCB, 2oz copper, with minimum recommended pad layout.
Document number: DS40375 Rev. 1 - 2 5 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Electrical Characteristics (TA = +25°C, unless otherwise noted.) Symbol Parameter Conditions Min Typ Max Unit SUPPLY VOLTAGE VIN Input Voltage - 5.0 - 60 V IQ Quiescent Current CTRL Pin Floating, VIN =16V - 450 - µ A VUVLO Under Voltage Lockout VIN Rising - 4.8 - V VUVLO_HYS UVLO Hysteresis - - 200 - mV HYSTERESTIC CONTROL VSET Mean Current Sense Threshold Voltage Measured on SET Pin with Respect to VIN 96 100 104 mV VSET_HYS Sense Threshold Hysteresis - - ±13 - % ISET ISET Pin Input Current VSET = VIN -0.1 - 8 - µ A ENABLE AND DIMMING VCTRL Voltage Range on CTRL Pin For Analog Dimming 0.4 - 2.5 V - Analog Dimming Range - 10 - 100 % VCTRL_ON DC Voltage on CTRL Pin for Analog Dimming on VCTRL Rising - 0.45 - V VCTRL_OFF DC Voltage on CTRL Pin for Analog Dimming off VCTRL Falling - 0.40 - V SWITCHING OPERATION RON SW Switch On Resistance @ISW = 100mA - 0.4 - Ω ISW_LEAK SW Switch Leakage Current - - 8 μA tSS Soft Start Time VIN = 16V, CCTRL = 1nF - 1.5 - ms FSW Operating Frequency VIN = 16V, VO = 9.6 V (3 LEDs) L = 47μH, ΔI = 0.25A (ILED = 1A) - 250 - kHz FSW_MAX Recommended Maximum Switch Frequency - - - 1 MHz tON_REC Recommended Minimum Switch ON Time For 4% Accuracy - 500 - ns tPD Internal Comparator Propagation Delay (Note 6) - - 100 - ns THERMAL SHUTDOWN TOTP Over Temperature Protection - - +150 - ° C TOTP_HYS Temp Protection Hysteresis - - +30 - ° C ISW_MAX Current Limit Peak Inductor Current - 3 - A Note: 6 .Guaranteed by design.
Document number: DS40375 Rev. 1 - 2 6 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Typical Performance Characteristics (TA = +25°C, VIN = 16V, unless otherwise noted.) Quiescent Current vs. Input Voltage Quiescent Current vs. Temperature SET Threshold Voltage vs. Input Voltage SET Threshold Voltage vs. Temperature PWM Dimming (VIN=16V, 3LEDs, 68μH, Rs=0.3Ω) Output Current vs. Duty Cycle Analog Dimming (VIN =16V, 3LEDs, 47μH, Rs=0.3Ω) LED Current vs. CTRL Pin Voltage 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 390 392 394 396 398 400 402 404 406 408 410 412 414 416 418 420 Input Voltage (V) Quiescent current (A) -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480Quiescent Current (A) Temperature ( O VIN=16V 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 100 105 110 115 120 Input Voltage (V) SET Threshold Voltage(mV) VTH_H VTH_mean VTH_L -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 100 105 110 115 120 SET Threshold Voltage (V) Temperature ( O VTH_H VTH_mean VTH_L 0 10 20 30 40 50 60 70 80 90 100 100 120 140 160 180 200 220 240 260 280 300 320 340 Output Current (mA) Duty Cycle (%) L=68H,550kHz fPWM=100Hz fPWM=500Hz fPWM=1kHz fPWM=10kHz 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Output Current (mA) CTRL Pin Voltage (V)
Document number: DS40375 Rev. 1 - 2 7 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60625 630 635 640 645 650 655 660 665 670 675 680 685 690 Input Voltage(V) L=100uH, Rs=0.15 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V LED Current(mA) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60960 965 970 975 980 985 990 995 1000 1005 1010 1015 1020 L=100uH, Rs=0.1 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V LED Current(mA) Input Voltage(V) Typical Performance Characteristics (Cont.) (TA = +25°C, VIN = 16V, unless otherwise noted.) Efficiency vs. Input Voltage (Rs=0.3Ω, L=100μH) Efficiency vs. Input Voltage (Rs=0.15Ω, L=68μH) Efficiency vs. Input Voltage ( Rs=0.1Ω, L=100μH) LED Current vs. Input Voltage (Rs=0.3Ω, L=100μH) LED Current vs. Input Voltage ( Rs=0.15Ω, L=68μH) LED Current vs. Input Voltage (Rs=0.1Ω, L=100μH) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 96Efficiency (%) Input Voltage (V) L=100uH, Rs=0.3 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 6051 Input Voltage(V) L=68uH, Rs=0.15 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V Efficiency(%) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 6051 L=100uH, Rs=0.1 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V Efficiency(%) Input Voltage(V) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60290 295 300 305 310 315 320 325 330 335 340 345 350 355 360 LED Current(mA) Input Voltage(V) L=100uH, Rs=0.3 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V
Document number: DS40375 Rev. 1 - 2 8 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Typical Performance Characteristics (Cont.) (TA = +25°C, VIN = 16V, unless otherwise noted.) Operating Frequency vs. Input Voltage (Rs=0.3Ω, L=100μH) Operating Frequency vs. Input Voltage (Rs=0.15Ω, L=68μH) Operating Frequency vs. Input Voltage ( Rs=0.1Ω, L=100μH) LED Current vs. Output Voltage (Rs=0.3Ω, L=100μH) LED Current vs. Output Voltage ( Rs=0.15Ω, L=68μH) LED Current vs. Output Voltage (Rs=0.1Ω, L=100μH) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 600 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 Frequency(kHz) Input Voltage(V) L=100uH, Rs=0.3 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 600 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 Input Voltage(V) L=68uH, Rs=0.15 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V Frequency(kHz) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 600 100 150 200 250 300 350 400 450 500 550 600 L=100uH, Rs=0.1 Vo=3.3V Vo=9.9V Vo=16.5V Vo=23.1V Vo=29.7V Vo=36.3V Vo=42.9V Vo=49.5V Frequency(kHz) Input Voltage(V) 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54312 316 320 324 328 332 336 340 344 348 352 356 LED Current(mA) Output Voltage(V) L=100uH,Rs=0.3 Vin=12V Vin=18V Vin=24V Vin=30V Vin=36V Vin=42V Vin=48V Vin=54V Vin=60V 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54630 633 636 639 642 645 648 651 654 657 660 663 666 669 672 675 678 681 684 687 690 LED Current(mA) Output Voltage(V) L=68uH,Rs=0.15 Vin=12V Vin=18V Vin=24V Vin=30V Vin=36V Vin=42V Vin=48V Vin=54V Vin=60V 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54984 986 988 990 992 994 996 998 1000 1002 1004 1006 1008 1010 1012 1014 1016 LED Current(mA) Output Voltage(V) L=100uH,Rs=0.1 Vin=12V Vin=18V Vin=24V Vin=30V Vin=36V Vin=42V Vin=48V Vin=54V Vin=60V
Document number: DS40375 Rev. 1 - 2 9 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862
Application Information
In normal operation, when normal input voltage is applied a t VIN, the AL8862 internal switch will turn on. Current s tarts to flow through sense resistor RSET, inductor L1, and the LEDs. The current ramps up linearly, and the ramp-up rate is determined by the input voltage VIN, VOUT and the inductor L1. This rising current produces a voltage ramp across R SET. The internal circuit of the AL8862 senses the voltage ac ross R SET and applies a proportional voltage to the input of the internal comparator. When this voltage reaches an internally set upper threshold, the internal switch is turned off. The inductor current continues to flow through RSET, L1, LEDs and diode D1, and back to the supply rail, but it decays, with the rate determined by the forward voltage drop of LEDs and the diode D1. This decaying current produces a falling voltage on R SET, which is sensed by the A L8862. A voltage proportional to the sense voltage across R SET will be applied at the input of internal comparator. When this voltage falls to the internally set lower threshold, the internal switch is turned on again. This switch-on-and-off cycle continues to provide the average LED current set by the sense resistor RSET. LED Current Configuration The nominal average output current in the LED(s) is deter mined by the value of the external current sense resist or (RSET) connected between VIN and SET and is given by: SET NOMOUT R 1 . 0I The table below gives values of nominal average output current for several preferred values of current setting resisto r (R SET) in the typical application circuit shown on page 1. RSET (Ω) Nominal Average Output Current (mA) 0.1 1000 0.15 667 0.3 333 The above values assume that the CTRL pin is floating and at a nominal reference voltage for internal comparator. It is possible to use different values of RSET if the CTRL pin is driven by an external dimming signal. Analog Dimming Apply a DC voltage from 0.4V to 2.5V on CTRL pin can adjus t output current from 10% to 100% of I OUT_NOM linearly, as shown in Figure 1. If the CTRL pin is brought higher than 2.5V, the LED current w ill be clamped to 100% of I OUT_NOM while if the CTRL voltage falls below 0.3V, the output switch will turn off. PWM Dimming LED current can be adjusted digitally, by applying a low freq uency pulse-width-modulated (PWM) logic signal to the CTRL pin to turn the device on and off. This will produce an average output current pr oportional to the duty cycle of the control signal. To ac hieve a high resolution the PWM frequency is recommended to be lower than 500Hz, howe ver higher dimming frequencies can be used, at the expens e of dimming dynamic range and accuracy. Typically, for a PWM frequency of 500Hz the accuracy is better than 1% for PWM ranging from 1% to 100%. The accuracy of the low duty cycle dimming is affected by bo th the PWM frequency and also the switching frequency of the AL8862. For best accuracy/resolution the switching frequency should be increased while the PWM frequency should be reduced. The CTRL pin is designed to be driven by both 3.3V and 5V logi c levels directly from a logic output with either an open dra in output or push pull output stage.
Figure 1. Analog Dimming Curve The default soft start time for the AL8862 is 0.1ms – this provides very fast turn on of the output, improving PWM dimming accuracy. comparator. The additional soft start time is related to the capacitance between CTRL and GND, the typical value will be 1.5ms/nF. lower overall efficiency. This capacitor has to supply the relatively high peak current to the coil and smooth the ripple on the input current. be placed as close as possible to the IC. dielectric are not suitable for decoupling in this application and should NOT be used. current. It also provides better efficiency than silicon diodes, due to lower forward voltage and reduced recovery time.
Document number: DS40375 Rev. 1 - 2 11 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Application Information (Cont.) Inductor Selection Recommended inductor value for the AL8862 are in the range 33μH to 1 00μH. Higher inductance are recommended at higher supply volt ages in order to minimize output current tolerance due to switching delays, which will result in increased ripple and lower efficiency. Higher inductance also results in a better line regulation. The inductor should be mounted as close to the device as possible with low resistance connections to SW pins. The chosen coil should have saturation current higher than the peak output current and a continuous current rating above the required mean output current. The inductor value should be chosen to maintain operating duty cycle and switch „on‟/‟off‟ times within the specified limits over the supply voltage and load current range. The following equations can be used as a guide. SW Switch „On‟ time SW Switch „Off‟ time Where: L is the coil inductance; R L is the coil resistance; R SET is the current sense resistance; I LED is the required LED current; ΔI is the coil peak - peak ripple current (Internally set to 0.26 x ILED); VIN is the supply voltage; VLED is the total LED forward voltage; RSW is the switch resistance (0.55Ω nominal); VD is the diode forward voltage at the required load current. Thermal Protection The AL8862 includes Over-Temperature Protection (OTP) circuitry t hat will turn off the device if its junction temperature gets too high. This is to protect the device from excessive heat damage. The OTP circuitry includes thermal hysteresis that will cause the device to restart normal operation once its junction temperature has cooled down by approximately +30°C. Open-Circuit LED Protection The AL8862 has by default open LED protection. If the L EDs should become open circuit the AL8862 will stop oscill ating; the SET pin will rise to VIN and the SW pin will then fall to GND. No excessive voltages will be seen by the AL8862. LED Short-Circuit Protection If the LED string should become shorted together (the ano de of the top LED becomes shorted to the cathode of the bottom LED) the AL8862 will continue to switch and the current through the AL8862‟s internal switch will still be at the expected current - so no excessive heat will be generated within the AL8862. However, the duty cycle at which it operates will change dramatically and the switching frequency will most likely decrease. See Figure 2 for an example of this behavior at 24V input voltage driving 3 LEDs. The on-time of the internal power MOSFET switch is significan tly reduced because almost all of the input voltage is no w developed across the inductor. The off-time is significantly increased because the reverse voltage across the inductor is now just the Schottky diode voltage (See Figure 2) causing a much slower decay in inductor current.
Figure 2. Switching Characteristics (Normal Operation to LED String Shorted) the switch will shut down and latch up.
Document number: DS40375 Rev. 1 - 2 13 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862
Ordering Information
AL8862 X–X Package SP: SO-8EP PackingProduct Name 13: Tape and Reel Part Number Package Code Package 13” Tape and Reel Quantity Part Number Suffix AL8862SP-13 SP SO-8EP 2500/Tape & Reel -13 Marking Information AL8862 (Top View) YY WW X X E Logo WW : Week : 01~52; 52 YY : Year : 15, 16, 17~ X X : Internal Code 8 7 6 5 1 2 3 4 represents 52 and 53 week Part Number E : SO-8EP
Document number: DS40375 Rev. 1 - 2 14 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Package Outline Dimensions (All dimensions in mm.) Package Type: SO-8EP 5.800(0.228) 6.200(0.244) 1.270(0.050) 0.400(0.016) 3.800(0.150) 4.000(0.157) 0.150(0.006) 4.700(0.185) 1.270(0.050) TYP 0.250(0.010) 0.150(0.006) 1.350(0.053) 1.550(0.061) 2.110(0.083) 2.710(0.107) 2.750(0.108) 3.402(0.134) 5.100(0.201) Note: Eject hole, oriented hole and mold mark is optional. 0.300(0.012)
Document number: DS40375 Rev. 1 - 2 15 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 Suggested Pad Layout Package Type: SO-8EP G E X Y Y1 Z Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) (mm)/(inch) (mm)/(inch) E (mm)/(inch)
Document number: DS40375 Rev. 1 - 2 16 of 16 www.diodes.com December 2017 © Diodes Incorporated NEW PRODUCT AL8862 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRES S OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ME RCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, correct ions or other changes without further notice to this document and any produ ct described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product des cribed herein; neither does Diodes Incorporated convey a ny license under its patent or trademark rights, nor the rights of others. Any Custom er or user of this document or products described her ein in such applications shall assume all risks of such use and will agree to hold Diodes Incorpo rated and all the companies whose products are repres ented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Pr oduct names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated in to multiple languages for reference. Only the English vers ion of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support dev ices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perfor m when properly used in accordance with instructions for u se provided in the labeling can be reasonably expected to result in signi ficant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their lif e support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-criti cal, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorpo rated. Further, Customers must fully indemnify Diodes Incor porated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2017, Diodes Incorporated www.diodes.com