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zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 1 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product description the zxct1107/09/10 are high side unipolar current sense monitors. these devices elimi nate the need to disrupt the ground plane when sensing a load current. the wide common-mode input voltage range and low quiescent current coupled with sot23 packages make them suitable for a range of applications; including adapters, automotive and system s operating from industrial 24v rails. the device is line powered and as such doesn?t need a separate supply rail. quiescent current is only 3a thereby minimising current sensing error. one external gain setting resistor increases versatility by permitting wide gain ranges. features ? wide supply and common-mode voltage range: 2.5v to 36v ? sot23 packages o 3-pin zxct1107/09 o 5-pin zxct1110 ? low quiescent current (3a). ? extended industrial temperature range -40 to 125c ? aec-q100 grade1 automotive qualified variants applications ? automotive current measurement ? industrial applications current measurement ? battery management ? over current monitor ? power management pin assignments zxct1107 top view out 1 2 s- 3 s+ out 1 2 s- 3 s+ zxct1109 top view out 1 2 s+ 3 s- out 1 2 s+ 3 s- zxct1110 top view gnd 2 5 s- 4 s+ nc 1 out 3 gnd 2 5 s- 4 s+ nc 1 out 3 typical application circuit
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 2 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product pin descriptions package sot23 sot23-5 description name zxct1107 zxct1109 zxct1110 out 1 1 1 1 3 output pin. current output. s+ 3 2 4 this is the positive input of t he current monitor and has a wide common-mode input range. this also acts as the analog supply and provides power to internal circuitry. the current through this pin varies with differential sense voltage. s- 2 3 5 this is the negative input of t he current monitor and has a wide common-mode input range. gnd - - 2 ground pin and substrate connection. nc - - 1 no connection notes. 1. for the zxct1107 and zxct1109 pin 1 (out) acts as both the output pin and subs trate connection. this means that for t he zxct1107 and zxct1109 the minimum rail voltage that can be used is 2.5v + v out (see applications section for more details). absolute maximum ratings description rating unit voltage on s- and s+ relative to out (zxct1107/9) -0.3 to 40 v voltage on s- and s+ relative to gnd (zxct1110) -0.3 to 40 v voltage on out to gnd (zxct1110) -0.3 to v s+ v differential sense voltage, v sense 2,3 -0.3 to 0.8 v current into s+ and s- 3 8.5 ma storage temperature -55 to 150 c maximum junction temperature 150 c package power dissipation (t a = 25c) sot23 sot23-5 300 (de-rate to zero at 150c) 300 (de-rate to zero at 150c) mw esd ratings human body model 1000 v machine model 150 v operation above the absolute maximum rati ng may cause device failure. operat ion at the absolute maximum ratings, for extended periods, may r educe device reliability. notes: 2. v sense = v s+ - v s- 3. the differential input voltage limit, v s+ - v s- , may be exceeded provided that the input curr ent limit into s+ or s- is not exceeded. recommended operating conditions symbol parameter min max unit v s+ common-mode input range 4 : zxct1110 2.5 36 v zxct1107/9 v out(max) + 2.5 36 v sense differential sense input voltage range (v s+ -v s- ) 0 0.5 v v out output voltage range (0 v sense 100mv) zxct1110 0 v s- - 1 v zxct1107/9 0 v s+ - 2.5 t a ambient temperature range -40 125 c notes. 4. for the zxct1107 and zxct1109 pin 1 (out) acts as both the output pin and subs trate connection. this means that for t he zxct1107 and zxct1109 the minimum rail voltage that can be used is 2.5v + v out (see applications section for more details).
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 3 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product electrical characteristics (t a = 25 c, v s+ = 20v, v sense 5 = 100mv, r gain = 0 unless otherwise stated) zxct1107, zxct1109 symbol parameter conditions t a min typ max units i s- s- input current v sense 5 = 0v 25c 19 100 na -40c 16 125c 35 i out output current 6 v sense 5 = 0mv 25c 1 3 10 a -40c 2.2 125c 5.5 v sense 5 = 10mv 25c 37 45 54 -40c 42 125c 49 v sense 5 = 30mv 25c 115 124 134 -40c 119 125c 129 v sense 5 = 100mv 25c 394 408 422 -40c 396 125c 420 v sense 5 = 200mv 25c 787 810 832 -40c 785 125c 832 v sense 5 = 500mv 25c 1.965 2.015 2.064 ma -40c 1.965 125c 2.065 i out -tc output current temperature coefficient full range 370 ppm/oc cmsr common-mode sense rejection v s+ = 2.5v to 36v 25c 0.1 0.4 a/v -40c 0.13 125c 0.05 bw -3db small signal bandwidth v sense 5 (ac) = 10mv pp r gain = 2.5k ? 25c 0.65 mhz
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 4 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product electrical characteristics (t a = 25 c, v s+ = 20v, v sense 5 = 100mv, r gain = 0 unless otherwise stated) (cont.) zxct1110 symbol parameter conditions t a min typ max units i q gnd pin current v sense 5 = 0v 25c 3 5 a -40c 2.2 125c 5.8 i s- s- input current 25c 19 100 na -40c 16 125c 35 cmsr common-mode sense rejection v s+ = 2.5v to 36v 25c 0.1 0.4 a/v -40c 0.13 125c 0.05 i oo output offset current 6,7 v sense 5 = 10mv 25c 0 4 a -40c -1.8 125c +2.5 g t transconductance v sense 5 = 10mv to 150mv 25c 3.928 4 4.072 ma/v -40c 3.9 125c 4.08 ge transconductance error v sense 5 = 10mv to 150mv 25c -1.8 1.8 % i out g t-tc transconductance temp.co 25c 265 ppm/oc v outh output relative to v s- 25c -1 -0.78 v -40c -0.88 125c -0.63 bw -3db small signal bandwidth v sense 5 (ac) = 10mv pp, r gain = 2.5k 25c 0.65 mhz notes. 5. v sense = ?v sense+ ? ? ?v sense- ? 6. output current characteri stic measured with low impedanc e ammeter connected to gnd 7. defined as difference between actual output current and 40 a; measured at v sense =10mv. this will include an error due to bias currents of the device. 8. for v sense > 10mv, the internal voltage-current converter is fully li near. this enables a true offset to be defined and used.
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 5 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product typical characteristics 0 2 4 6 8 10 12 010203040 t = 0c a t = 125c a t = 85c a t = 25c a t = -40c a v = 0v v = 0v out sense v (v) input current vs. v s+ s+ i ( a ) s+ 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 -40 -25 -10 5 20 35 50 65 80 95 110 125 temperature (c) input current vs. ambient temperature v = 3.7v s+ v = 20v s+ v = 0v v = 0v sense out i (a) s+ 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 010203040 i (a) s+ v (v) i current vs. v s+ s+ s+ t = 25c v = 0v v = 0v a out sense 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 i (na) s- t = 25c v = 0v v = 0v a out sense 010203040 v (v) i current vs. v s+ s- s+ 0 500 1000 1500 2000 2500 0 100 200 300 400 500 600 v = 20v v = 0v s+ out t = -40c a t = 0c a t =25c a t = 85c a t = 125c a v (mv) output current vs. v sense sense i ( a ) out 0 50 100 150 200 250 300 350 400 450 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 output voltage (v) output current vs. output voltage output current (a)
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 6 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product typical characteristics (cont.) 0 100 200 300 400 500 600 700 -40 -25 -10 5 20 35 50 65 80 95 110 125 i (a) out temperature(c) output current vs. ambient temperature 0 500 1000 1500 2000 2500 -40 -25 -10 5 20 35 50 65 80 95 110 125 temperature(c) output current vs. ambient temperature i (a) out 0 100 200 300 400 500 600 700 0 10203040 v (v) output current vs. v s+ s+ i ( a ) out 0 500 1000 1500 2000 2500 010203040 t = 25c v = 0v a out v = 500mv sense v = 150mv sense v = 50mv sense v = 100mv sense v = 30mv sense v = 5mv sense v = 10mv sense v (v) output current vs. v s+ s+ i ( a ) out 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 0 100 200 300 400 500 600 v = 20v v = 0v s+ out t = 125c a t 85c a t = 25c a t = 0c a t = -40c a v (mv) differential gain vs. v sense sense di f f e r e nti a l g a in (m a /v) -0.25% -0.20% -0.15% -0.10% -0.05% 0.00% 0.05% 0.10% 0.15% 0.20% 0.25% 0 10 20 30 40 t = 25c v = 0v a out v = 100mv sense v = 150mv sense v = 500mv sense v = 30mv sense v = 50mv sense v (v) output current error vs. v s+ s+ i e rr o r [v = 2 0v] ( % ) out s+
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 7 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product typical characteristics (cont.) -4.00% -3.00% -2.00% -1.00% 0.00% 1.00% 2.00% 3.00% 4.00% 0 10203040 t = 125c a t = 85c a t = 25c a t = -40c a t = 0c a v = 100mv, v = 0v sense out v (v) output current error vs. v s+ s+ i e r r o r [v = 2 0v] (%) out s+
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 8 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product typical ac characteristics -70 -60 -50 -40 -30 -20 -10 0 -3.5 -3 -2.5 -2 -1.5 -1 -0.5 0 v = 0v, gnd = -3.7v r = 10k s+ gain output voltage (v) sense v o l t a g e (mv) time (s) small signal pulse response output input 0 5 10 15 20 25 30 35 40 45 50 -250 -200 -150 -100 -50 0 -25 -21 -17 -13 -9 -5 output voltage (v) sense voltage (mv) v = 0v, gnd = -20v r = 10k s+ gain output input time (s) large signal pulse response 0 5 10 15 20 25 30 35 40 45 50 -250 -200 -150 -100 -50 0 -20 -18 -16 -14 -12 -10 v = 0v, gnd = -20v r = 10k s+ gain output voltage (v) sense v o l t a g e (mv) time (s) large signal pulse response output input 0 5 10 15 20 25 30 35 40 45 50 -25 -20 -15 -10 -5 0 -20 -19 -18 v = 0v, gnd = -20v r = 10k s+ gain output voltage (v) sense v o l t a g e (mv) time (s) small signal pulse response output input 0 5 10 15 20 25 30 35 40 45 50 -102 -100 -98 -96 -94 -92 -90 -88 0 5 10152025 30 35 40 45 50 -17 -16.5 -16 -15.5 -15 v = 0v, gnd = -20v r = 10k s+ gain output voltage (v) sense voltage (mv) time (s) small signal pulse response output input -112 -110 -108 -106 -104 -102 -100 -98 0 5 10 15 20 25 30 35 40 45 50 -17 -16.8 -16.6 -16.4 -16.2 -16 -15.8 -15.6 -15.4 -15.2 -15 output voltage (v) time (s) small signal pulse response sense v o lta g e (mv) v = 0v, gnd = -20v r = 10k s+ gain output input
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 9 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product typical ac characteristics (cont.) test circuit for pulse response 0 10 20 30 40 50 60 70 80 1 cmrr (db) frequency (hz) common mode rejection ratio cmrr 10 100 1k 10k 100k 1m 10m -30 -20 -10 0 10 20 30 t =25c v = 20v v = 100mv v = 10mvpp r = 2.5k a s+ sense dc sense ac gain frequency (hz) small signal bandwidth g ain (db) 10 100 1k 10k 100k 1m 10m test circuit for cmrr test circuit for small signal bandwidth
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 10 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product application information description the current monitor ics zxct1107, zxct1109 and zxct1110 all us e a similar application circuit topology for high-side current sensing, with small differences. the zxct1110 has a separate ground pin whereas the zxct1107 and zxct1109 do not. the use of zxct1110 allows reduction of the absolute cu rrent measurement error in some applications by providing a reduced output offset current. the zxct1107 provides a mirror image pin assignment of the zxct1109 to ease pcb layout in very small equipment designs. the basic application circuit for each device is shown in figure 1. two external resistors are required. the resistor r sense is connected in the path of the current to be monitored. the resistor r gain converts the device output current to a voltage for convenient processing by a further device, such as a comparator, amplifier or analog-to-digital converter within a microcontroller system. the current monitor output current is defined thr ough the nominal transconductance of 4ma/v. i out = 0.004 * v sense amp equation 1 then the resistors determine the out put voltage as described below. s+ zxct1110 s- r sense v supply out load gnd r gain gnd output v out i load v sense figure 1. basic application circuit calculation of resistor values in order to select r sense , a choice of sense voltage is required. this often involves a compromise between power efficiency and accuracy for the given temperature range. the resistor must be small enough to avoid excessive volt drop between the power supply and the load. however, the resistor must be large enough to avoid excessive current measurement error, particularly random errors. in a typical application, a digital system, perhaps a microcontro ller, is set up to monitor the current. at a certain threshol d current level, i loadt , the system is required to disconnect the load or report a fault. at this current level, the current measurement error must be limited to a known value. the total percentage error comprises the inherent error in the zxct1107/1109/1110 device and the tole rances of the two resistors r sense and r gain . the zxct1107/zxct1109 absolute error is shown in table 1 with error limits drawn from the table of electrical characteristics above. this error varies with v sense .
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 11 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product application information (cont.) the zxct1110 is highly linear and has a transconductanc e of 4ma/v 1.8% and an out put of 40a 4a at v sense =10mv. the output current can therefore be calculated (standard international units) as: i out = (40 +/-4)*10 -6 + (v sense -0.01)*(0.004 +/- 0.000072) amp the worst-case current error is then i outerror = i out ? i outideal = +/- { 4*10 -6 + (v sense -0.01) * 0.000072 } amp or i outerror = +/- { 3.28*10 -6 + v sense * 0.000072 } a the percentage error is %100* 004.0*v i %100* i i sense outerror outideal outerror = = then 004.0*v 0072.0*v10*28.3 sense sense 4 + = ? % or %8.1 v 082.0 sense = equation 2 this shows that the error is reduced with increasing v sense . then the minimum v sense required to give the error 0 % is 8.1 082.0 v sense ? = v [only for zxct1110] equation 3 in the application, the effect of the external resistor tolerances must also be taken into account. table 1: zxct1107/zxct1109 error v sense mean i out error band percent error 10mv 45.5 a 8.5a 18.7% 30mv 124.5 a 7.6a 7.6% 100mv 408 a 3.4a 3.4% 200mv 809.8 a 22.5a 2.8% table 2: zxct1110 error v sense mean i out error band percent error 10mv 40a 4a 10% 30mv 120a 5.44a 4.53% 100mv 400a 10.48a 2.62% 200mv 800a 17.68a 2.21%
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 12 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product application information (cont.) note that in order to avoid additional error, v supply must be at least 1.5v greater than v out . this margin depends on the value of v sense . for v sense = 100mv, this margin can be reduced to 1.0v. r sense is chosen based on the threshold v senset of sense voltage selected as above, for the chosen threshold load current, i loadt . loadt senset sense i v r = equation 4 r gain is chosen to give the required threshold output voltage, v outt . from equation 1, the thre shold output current is i outt = 0.004 * v senset equation 1a outt outt gain i v r = or senset outt gain v*004.0 v r = equation 5 design example a current monitor is required to provide an output voltage of 2v 6% when the load current of a 12v supply is 2a. resistors are available with 1% tolerance. the sense and output resistors will contribute a total possible error of 2%, so the zxct11xx error must not exceed 4%. from table 1, the error of zxct1107/1109 will be 3.4% if the sense voltage is 100mv. this satisfies the total error requirement of 6%. equation 4 gives r sense = 100mv/2a = 50m ? equation 5 gives 1.0*004.0 2 r gain = = 5k ? a suitable preferred value is 5.1k . this gives a systematic error of +2%, which can be compensated elsewhere in the system if desired. figure 2 shows the resulting schematic. figure 2. example circ uit using zxct1107/zxct1109
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 13 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product application information (cont.) alternatively, the zxct1110 may be used with a reduced sense voltage if desired. from equation 3, with =4%, 8.1 082.0 v sense ? = = 0.082/(4-1.8) = 37.2mv equation 4 gives r sense = 37.2mv/2a = 18.6m ? a suitable preferred value is 20m ? . then the sense voltage will be 2a * 20m ? = 40mv. equation 5 gives 04.0*004.0 2 r gain = = 12500 ? a suitable preferred value is 13k ? . the alternative example circuit using the zxct1110 with a sense voltage of 40mv is shown in figure 3, giving the required overall accuracy of 6%. s+ zxct1110 s- 20m ? v supply out load gnd 13k gnd output v out i load figure 3. example circuit using zxct1110 protection against load short circuit in the event of a load short circuit or overload, a large proportion of the supply voltage may appear between the sense terminals. the supply may be current limit ed, but there is normally a large reservoir capacitor which can deliver enough energy to damage the zxct11xx before the supply voltage fa lls to a safe level due to current limit activation. the zxct11xx is rated for a maximum sense voltage of +0.8v, but is safe if the input current is limited to 8.5ma. in figure 4, the resistor r prot limits the current and therefore prot ects the current monitor device against load short circuit without introducing significant current measurement error.
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 14 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product application information (cont.) figure 4. protection and emc filtering emc susceptibility in many applications, the circuit is required to operate in the presence of rf radiation. this radiation is coupled into the circuit via the supply or load connections and will often cause si gnificant bias shift due to rectification within the integrat ed circuit. the bias shift may lead to erroneous operation of the integrated circuit. in fi gure 4, a low pass filter, r prot and c1, provides significant attenuation in the vh f and uhf regions. the value of c1 is recommended to be in the range of 10pf to 47pf, leadless ceramic type. pcb layout considerations it is necessary to take into a ccount a small volt drop in the pc b copper and solder joints to r sense . such volt drops can create noticeable error at curr ents of the order of 1a and greater. the pcb must be designed to provide the maximum possible copper carrying current via the sense resistor, and the tr aces from the s+ and s- pins must be connected only to the resistor pads. in this way, the e ffect of the copper is minimized. if used, the capacitor c1 should be plac ed very close the input pins s+ and s-. application: high voltage current monitor the schematic of figure 5 shows how the current monitor may be used in a high voltage application such as a tv led backlight system. in this configuration the 500v pnp transistor q1 drops a large pr oportion of the supply voltage. diode d2 limits the differential input voltage to a safe level under overload conditions. the vo ltage across u1 is limited by the zener diode d1. the output current of u1 is limited to about 3ma by the d2. as r gain is typically a few k ? , the output voltage is therefore limited to a few volts. an additional output clamping diode may be required for higher gains. r1 is chosen to give a suitable bias current in d1 for the given supply voltage range.
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 15 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product figure 5. 450v current monitor
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 16 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product ordering information order reference package device marking reel size quantity per reel tape width (mm) zxct1107sa-7 sot23 1107 7?, 180mm 3000 8 zxct1109sa-7 sot23 1109 7?, 180mm 3000 8 ZXCT1110W5-7 sot23-5 1110 7?, 180mm 3000 8 package outline dimensions (all dimensions in mm) package type: sot23 package type: sot23-5
zxct1107/1109/1110 low power high-side current monitors zxct1107/1109/1110 document number: ds35033 rev. 1 - 2 17 of 17 www.diodes.com march 2011 ? diodes incorporated a product line o f diodes incorporated new product 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 reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liabi lity arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products desc ribed herein in such applications 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 whatsoever in respect of any products purchased through unauthoriz ed 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 fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized a pplication. 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. life support diodes incorporated products are specifically not authorized for use as critical components in life support devices 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 perform when properly 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 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 life support dev ices 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-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporated 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 ? 2011, diodes incorporated www.diodes.com

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