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AL8806Q document number: ds36905 rev. 1 - 2 1 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q high efficiency 30v 1.6a automotive grade buck led driver description the AL8806Q is a step-down dc/dc c onverter designed to drive leds with a constant current. the devic e can drive up to 8 leds, depending on the forward voltage of the leds, in series from a voltage source of 6v to 30v. the AL8806Q switches at frequencies up to 1mhz. this allows the use of small size ex ternal components, hence minimizing the pcb area needed. maximum output current of AL8806Q is set via an external resistor connected between the v in and set input pins. dimming is achieved by applying either a dc voltage or a pwm signal at the ctrl input pin. an input voltage of 0.4v or lower at ctrl switches off the output mosfet simplifying pwm dimming. the AL8806Q has been qualified to aec-q100 grade 1 and is automotive grade supporting ppaps features ? led driving current up to 1.5a ? better than 5% accuracy ? high efficiency up to 98% ? optimally controlled switching speeds ? operating input voltage from 6v to 30v ? pwm/dc input for dimming control ? built-in output open-circuit protection ? automotive grade with aec-q100 qualification ? msop-8ep: 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) ? automotive grade ? qualified to aec-q100 standards for high reliability ? ppap capable (note 4) pin assignments applications ? automotive led lamps ? multi-die led driver notes: 1. no purposely added lead. fully eu directiv e 2002/95/ec (rohs) & 2011/ 65/eu (rohs 2) compliant. 2. see http://www.diodes.com/ quality/lead_free.html for more information about diodes incorporated?s definitions of halogen- a nd antimony-free, "green" and lead-free. 3. halogen- and antimony-free "green? products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. 4. automotive products are aec-q100 qualified and are ppap capable. automotive, aec-q100 and standard products are electricall y and thermally the same, except where specified. for more information, please refer to http://www.diodes.com/quality /product_compliance_definitions/. typical applications circuit
AL8806Q document number: ds36905 rev. 1 - 2 2 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q pin descriptions pin name pin number functions set 1 set nominal output current pin. configure the output current of the device. gnd 2, 3 gnd pin ctrl 4 dimming and on/off control input. ? leave floating for normal operation. (v ctrl = v ref = 2.5v giving nominal average output current i outnom = 0.1/r s ) ? drive to voltage below 0.4v to turn off output current ? drive with dc voltage (0.5v < v ctrl < 2.5v) to adjust output current from 20% to 100% of i outnom ? a pwm signal (low level 0.4v and high level > 2.6; transition times less than 1us) allows the output current to be adjusted below the level set by the resistor connected to set input pin. sw 5, 6 switch pin. connect inductor/freewheeling diode here, minimizing track length at this pin to reduce emi. n/c 7 no connection v in 8 input supply pin. must be locally decoupled to gnd with > 2.2f x7r ceramic capacitor ? see applications section for more information. ep ep exposed pad: connect to gnd and thermal mass for enhanced thermal impedance. it should not be used as electrical ground conduction path. functional block diagram absolute maximum ratings (@t a = +25c, unless otherwise specified.) symbol parameter ratings unit esd hbm human body model esd protection 2.5 kv esd mm machine model esd protection 200 v esd cdm charged device model esd protection ? v v in continuous v in pin voltage relative to gnd -0.3 to +36 v transient v in pin voltage relative to gnd -0.3 to +40 v sw sw voltage relative to gnd -0.3 to +36 v v ctrl ctrl pin input voltage -0.3 to +6 v i sw-rms dc or rms switch current 1.65 a i sw-pk peak switch current (<10%) 3 a t j junction temperature 150 c t lead lead temperature soldering 300 c t st storage temperature range -65 to +150 c caution: stresses greater than the 'absolute maximum ratings' specified above, may cause permanen t damage to the device. these are stress ratings only; functional operation of the devic e at these or any other condi tions exceeding those indicated in this specification is not impl ied. device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. semiconductor devices are esd sensitive and may be damaged by ex posure to esd events. suitable esd precautions should be taken when handling and transporting these devices.
AL8806Q document number: ds36905 rev. 1 - 2 3 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q recommended operating conditions (@t a = +25c, unless otherwise specified.) symbol parameter min max unit v in operating input voltage relative to gnd 6.0 30 v v ctrlh voltage high for pwm dimming relative to gnd 2.6 5.5 v v ctrldc voltage range for 20% to 100% dc dimming relative to gnd 0.5 2.5 v v ctrll voltage low for pwm dimming relative to gnd 0 0.4 v f sw maximum switching frequency ? 1 mhz i sw continuous switch current ? 1.5 a t j junction temperature range -40 +125 c electrical characteristics (@ v in = 12v, t a = +25c, unless otherwise specified.) symbol parameter conditions min typ. max unit v insu internal regulator start up threshold v in rising ? ? 5.9 v v insh internal regulator hysteresis threshold v in falling 100 ? 300 mv i q quiescent current output not switching (note 5) ? ? 350 a i s input supply current ctrl pin floating f = 250khz ? 1.8 5 ma v th set current threshold voltage v ctrl 2.6v or floating. 95 100 105 mv v th-h set threshold hysteresis ? ? 20 ? mv i set set pin input current v set = v in -0.1 ? 16 22 a r ctrl ctrl pin input resistance referred to internal reference ? 50 ? k ? v ref internal reference voltage ? ? 2.5 ? v r ds(on) on resistance of sw mosfet i sw = 1a ? 0.18 0.35 ? i sw_leakage switch leakage current v in = 30v ? ? 0.5 a ja thermal resistance junction-to- ambient (note 6) (note 7) ? 69 ? c/w jc thermal resistance junction-to-case (note 6) (note 7) ? 4.3 ? notes: 5. AL8806Q does not have a low power standby mode but current consumption is reduced when output switch is inhibited: v sense = 0v. parameter is tested with v ctrl 2.5v 6. refer to figure 5 for the device derating curve. 7. measured on an fr4 51x51mm pcb with 2oz copper standing in still air with minimum recommended pad layout on top layer and thermal vias to bottom layer maximum area ground plane. for better thermal per formance, larger copper pad for heat-sink is needed. 8. dominant conduction path via exposed pad. re fer to figure 5 for the device derating curve.
AL8806Q document number: ds36905 rev. 1 - 2 4 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q typical performance characteristics (@t a = +25c, unless otherwise specified.) ? 0 50 100 150 200 250 300 350 40 0 0 5 10 15 20 25 30 v (v) supply current (not switching) vs. input current in i (a) in v = 0v v = v t = 25c ctrl se t i n a 0 100 200 300 400 500 600 700 800 90 0 012 34 5 v(v) switching frequency vs. v ctr l ct rl v = 12v 1 led r = 150m t = 25c in set a frequency (khz) l = 3 3 h l = 6 8 h l = 1 00 h -60 -40 -20 0 20 40 60 80 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 v = v = 12v t = 25c se t i n a i (a) ct rl v (v) i vs v ctrl ctrl ctrl 0 0.5 1 1.5 2 2.5 3 0 5 10 15 20 25 30 ctrl a v= open t = 25c se t i n v = v v (v) v vs. input voltage (ctrl pin open circuit) in ctrl v (v) ctrl 2.48 2.49 2.50 2.51 2.52 -40 -15 10 35 60 85 110 ambient temperature (c) v vs. temperature ctrl v = open v = v = 12v ctrl se t i n v (v) ctrl 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 t = 25c a l =68h ctrl voltage (v) led current vs. v ctrl led c u r r en t (a) r = 68m set r = 100m set r = 150m set
AL8806Q document number: ds36905 rev. 1 - 2 5 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q typical performance characteristics (cont.) (@t a = +25c, unless otherwise specified.) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0% 20% 40% 60% 80% 100% pwm duty cycle i vs. pwm duty cycle led 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 v = 12v 1 led r = 150m l = 6 8 h in set led current error (%) led current (a) led current error i led 80 85 90 95 100 105 11 0 11 5 120 125 130 024 68 time (s) sw output switching characteristics -2 0 2 4 6 8 10 12 14 16 18 v sw v (mv) se ns e r = 150m l = 6 8 h set v = 12v 1 led load in v sw v se ns e 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 6 9 12 15 18 21 24 27 30 input voltage (v) duty cycle vs. input voltage l = 3 3h r = 150m t = 25c set a 2 led duty cycle 0 20 40 60 80 100 120 140 160 180 200 0 5 10 15 20 25 30 r (m) ds(on) v (v) r vs. input voltage in ds(on) v = open v = v 12v t = 25c ctrl set in a 100 120 140 160 180 200 220 240 260 -40 -15 10 35 60 85 110 ambient temperature (c) sw r vs. temperature ds(on) v = open v = v 12v ctrl set in r ( m ) ds(on)
AL8806Q document number: ds36905 rev. 1 - 2 6 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q typical performance characteristics (cont.) (@t a = +25c, unless otherwise specified.) 1.5a nominal led current 1.0a nominal led current 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds -10% -8% -6% -4% -2% 0% 2% 4% 6% 8% 10% 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 66.67m a s % error 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds -10% -8% -6% -4% -2% 0% 2% 4% 6% 8% 10% 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 100m a s deviation 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 66.67m a s switching frequency (khz) 700 600 500 400 300 200 100 0 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds 0 100 200 300 400 500 600 700 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 100m a s switching frequency (khz) 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds 75% 80% 85% 90% 95% 100% 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 66.67m a s 1 led 2 leds 3 leds 4 leds 5 leds 6 leds 7 leds 8 leds 75% 80% 85% 90% 95% 100 % 6 9 12 15 18 21 24 27 30 input voltage (v) t = 25c l = 33h r = 100m a s efficiency
AL8806Q document number: ds36905 rev. 1 - 2 7 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q application information AL8806Q operation in normal operation, when voltage is applied at v in , the AL8806Q internal switch is turned on. curr ent starts to flow through sense resistor r set , inductor l1, and the leds. the current ramps up linearly, and the ramp rate is determined by the input voltage v in and the inductor l1. figure 1 typical application circuit this rising current produces a voltage ramp across r set . the internal circuit of the AL8806Q senses the voltage across r set and applies a proportional voltage to the input of the internal comparator. when this voltage reaches an internally se t upper threshold, the internal switch is turned off. the inductor current continues to flow through r set , l1, the leds and the schottky diode d1, and back to the supply rail, but it decays, with the rate of decay determined by the fo rward voltage drop of the leds and the schottky diode. this decaying current produces a falling voltage at r 1 , which is sensed by the AL8806Q. a voltage proportional to the sense voltage across r set is applied at the input of the internal comparator. when this volt age falls to the internally set lower threshold, the internal sw itch is turned on again. this switch-on-and-off cycle conti nues to provide the average led curr ent set by the sense resistor r set . led current control the led current is controlled by the resistor r set in figure 1. connected between v in and set the nominal average output current in the led(s) is defined as: set thd led r v i = if the ctrl pin is driven by an external voltage (higher than 0.4v and lower than 2.5v), the average led current is: set thd ref ctrl led r v v v i = for example for a desired led current of 1.33a and a default voltage v ctrl =2.5v the resulting resistor is: = = m 75 5 . 2 5 . 2 33 . 1 1 . 0 v v i v r ref ctrl led thd set analog dimming the ctrl pin can be driven by an external dc voltage (v ctrl ), to adjust the output current to a value below the nominal average value defined by r set . the led current decreases linearly with the ctrl voltage when 0.5v v ctrl 2.5v, as shown on page 4 for 4 different current levels.
AL8806Q document number: ds36905 rev. 1 - 2 8 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q application information (cont.) analog dimming (cont.) note that 100% brightness setting corresponds to v ctrl = v ref , nominally 2.5v. for any voltage applied on the ctrl pin that is higher than v ref , the device will not overdrive the led current and w ill still set the current according to the equation v ctrl = v ref . when the ctrl voltage falls below the threshold, 0.4v, t he output switch is turned off which allows pwm dimming. pwm dimming led current can be adjusted digitally, by applying a low frequency pu lse width modulated (pwm) logic signal to the ctrl pin to turn the device on and off. this will produce an average output current proportional to the duty cycle of the control signal. in particular, a p wm signal with a max resolution of 10bit can be applied to the ctrl pin to change the output current to a value below the nominal average value set by resistor r set . to achieve this resolution the pwm frequency has to be lower than 500hz, however higher dimming frequencies can be used - at the e xpense 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%. figure 2 pwm dimming at 500hz figure 3 low duty cycle pwm dimming at 500hz the pwm pin is designed to be driven by both 3.3v and 5v logic le vels directly from a logic output with either an open drain ou tput or push-pull output stage. 0 100 200 300 400 500 600 700 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% pwm dimming [%] led current [ma ] 0 10 20 30 40 50 60 70 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% pwm dimming [%] led current [ma ]
AL8806Q document number: ds36905 rev. 1 - 2 9 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q application information (cont.) soft start the AL8806Q does not have in-built soft-start action ? this provid es very fast turn off of the output the stage improving pwm d imming accuracy; nonetheless, adding an external capacitor from the ctrl pin to ground will provide a soft-start delay. this is achieved by incr easing the time taken for the ctrl voltage to rise to the turn-on threshold and by slowing down the rate of rise of the control voltage at the input of the comparator. adding a capacitor increases the time taken for the output to reach 90% of its final value, this delay is 0.1ms/nf, but will im pact on the pwm dimming accuracy depending on the delay introduced. figure 4 soft start with 22nf capacitor on ctrl pin (v in = 30v, i led = 667ma, 1 led)
AL8806Q document number: ds36905 rev. 1 - 2 10 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q application information (cont.) reducing output ripple peak to peak ripple current in the led(s) can be reduced, if r equired, by shunting a capacitor c2 across the led(s) as shown al ready in the circuit schematic. a value of 1 f will reduce the supply ripple current by a factor three (approx.). proportionally lo wer ripple can be achieved with higher ca pacitor values. note that the capacitor will not affect operating frequenc y or efficiency, but it will increase start-up delay, by reducing the rate of rise of led voltage. by adding this capacitor the current waveform through the led(s) changes from a triangul ar ramp to a more sinusoid al version without altering the mean current value. capacitor selection the small size of ceramic capacitors makes them ideal for AL8806Q applications. x5r and x7r types are recommended because they retain their capacitance over wider voltage and temperatur e ranges than other types such as z5u. a 2.2 f input capacitor is sufficient for most in tended applications of AL8806Q; however a 4.7 f input capacitor is suggested for input voltages approaching 30v. diode selection for maximum efficiency and performance, the rectifier (d1) should be a fast low capac itance schottky diode with low reverse lea kage at the maximum operating voltage and temperature. the schottky diode al so provides better efficiency than silicon pn diodes, due to a combination of lower forward voltage and reduced recovery time. it is important to select parts with a peak current rating above the peak coil current and a continuous current rating higher t han the maximum output load current. in particular, it is recommended to have a diode voltage rating at least 15% higher than the operating voltage t o ensure safe operation during the switching and a current rating at least 10% higher t han the average diode current. the power rating is verified by calculating the power loss through the diode. schottky diodes, e.g. b240 or b140, with their low forward volt age drop and fast reverse recovery, are the ideal choice for al8 806q applications. thermal and layout considerations for continuous conduction mode of operation, t he absolute maximum junction temperature mu st not be exceeded. the maximum power dissipation depends on several factors: the thermal resistance of the ic package ja , pcb layout, airflow surrounding t he ic, and difference between junction and ambient temperature. the maximum power dissipation can be ca lculated using the following formula: p d(max) = (t j(max) ? t a ) / ja where t j(max) is the maximum operating junction temperature, t a is the ambient temperature, and ja is the junction to ambient thermal resistance. the recommended maximum operating junction temperature, t j , is 125c and so maximum ambient temperature is determined by the AL8806Q?s junction to ambient thermal resistance, ja . to support high led drive at higher ambient temperatures the AL8806Q has been packaged in thermally enhanced msop-8ep package. ja , is layout dependent and the AL8806Q?s ja in msop-8ep on a 51 x 51mm double layer pcb with 2oz copper standing in still air is approximately 69c/w. therefore the maximum power dissipation at t a = 25c is: () w 45 . 1 w / c 69 c 25 c 125 p ) max ( d = ? = figure 5, shows the power derating of the AL8806Q on an fr4 51x51mm pcb with 2oz copper standing in still air. as the ambient temperature increases and/or the pcb area reduces the maximum allowable power dissipated by the AL8806Q will decrease. figure 5 derating curve msop-8ep 0 200 400 600 800 1000 1200 1400 1600 -40 -25 -10 5 20 35 50 65 80 95 110 125 ambient temperature (c) power dissipation (mw)
AL8806Q document number: ds36905 rev. 1 - 2 11 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q application information (cont.) emi and pcb layout considerations the AL8806Q is a switching regulator with fast edges and measures small differential voltages; as a result of this care has to be taken with decoupling and layout of the pcb.to help with these effects the al8807q has been developed to minimise radiated emissions by co ntrolling the switching speeds of the internal power mosfet. the rise and fa ll times are controlled to get the right compromise between powe r dissipation due to switching losses and radiated emi. the turn-on edge (falling edge) dominates the radiated emi which is due to an interactio n between the schottky diode (d1), switching mosfet and pcb tracks. after the schottky diode reverse recovery time of around 5ns has occurre d; the falling edge of the sw pin sees a resonant loop between the sc hottky diode capacitance and the track inductance, l track , see figure 6. figure 6 pcb loop resonance the tracks from the sw pin to the anode of the schottky diode, d1, and then from d1?s cathode to the decoupling capacitors c1 s hould be as short as possible. there is an inductance internally in the al8807q this can be assumed to be around 1nh. for pcb tracks a figure o f 0.5nh per mm can be used to estimate the primary resonant frequency. if the track is capable of handling 1a increasing the thickness will ha ve a minor effect on the inductance and length will dominate the size of the induct ance. the resonant frequency of any oscillation is determined by the combined inductance in the track and the effect ive capacitance of the schottky diode. recommendations for minimising radiated emi and ot her transients and thermal considerations are: 1. the decoupling capacitor (c1) has to be placed as close as possible to the v in pin and d1 cathode 2. the freewheeling diode?s (d1) anode, the sw pin and the inductor have to be placed as close as possible to each other to avo id ringing. 3. the ground return path from c1 must be a low im pedance path with the ground plane as large as possible 4. the led current sense resistor (r1) has to be placed as close as possible to the v in and set pins. 5. the majority of the conducted heat from the al8807q is through the gnd pin 2. a ma ximum earth plane with thermal vias into a second earth plane will minimise self-heating 6. to reduce emissions via long leads on the supply input and le ds low rf impedance capacitors (c2 and c5) should be used at th e point the wires are joined to the pcb
AL8806Q document number: ds36905 rev. 1 - 2 12 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q ordering information part number package code packaging (note 9) packing: 13? tape and reel qualification grade (note 10) quantity tape width part number suffix AL8806Qmp-13 mp msop-8ep 2500 12mm -13 automotive grade note: 9. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf 10. AL8806Q have been qualified to aec-q100 grade 1 and is classi fied as ?automotive grade? which supports ppap documentation . see al8806 datasheet for commercial qualified versions. marking information (1) msop-8ep part number package AL8806Qmp8-13 msop-8ep package outline dimensions (all dimensions in mm.) please see ap02002 at http://www.diodes.com /datasheets/ap02002.pdf for latest version. msop-8ep dim min max typ a - 1.10 - a1 0.05 0.15 0.10 a2 0.75 0.95 0.86 a3 0.29 0.49 0.39 b 0.22 0.38 0.30 c 0.08 0.23 0.15 d 2.90 3.10 3.00 d1 1.60 2.00 1.80 e 4.70 5.10 4.90 e1 2.90 3.10 3.00 e2 1.30 1.70 1.50 e3 2.85 3.05 2.95 e - - 0.65 l 0.40 0.80 0.60 a 0 8 4 x - - 0.750 y - - 0.750 all dimensions in mm 1 d a a 1 a 2 e e y x s e a t i n g p l a n e g a u g e p l a n e 0 . 2 5 l 4 x 1 0 4 x 1 0 d 8 x b s e e d e t a i l c d e t a i l c c a e 1 e 3 a 3 d 1 e 2
AL8806Q document number: ds36905 rev. 1 - 2 13 of 13 www.diodes.com april 2014 ? diodes incorporated a l8806q suggested pad layout please see ap02001 at http://www.diodes.com/dat asheets/ap02001.pdf for the latest version. important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to this document and any product descri bed herein. diodes incorporated does not assume any liability ari sing out of the application or use of this document or an y product described herein; neither does di odes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or us er of this document or products described herein in such applica tions shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability w hatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes inco rporated products for any unintended or una uthorized application, customers shall i ndemnify and hold diodes incorporated and its representativ es harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product 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 into multiple languages for reference. only the english version of t his document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized for use as critical component s in life support devices or systems without the express written approval of the chief executive offi cer of diodes incorporated. as used herein: a. life support devices or syst ems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when proper ly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support devic e or system whose failure to perform can be reasonably expect ed 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 ramifi cations of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-rel ated requirements concerning the ir products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or s ystems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporate d and its representatives against any damages arisi ng out of the use of diodes incorporated pr oducts in such safety-critical, life suppor t devices or systems. copyright ? 2014, diodes incorporated www.diodes.com dimensions value (in mm) c 0.650 g 0.450 x 0.450 x1 2.000 y 1.350 y1 1.700 y2 5.300 g x c y y2 y1 x1

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