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  100 watt single output half brick dc/dc converter vka100xs vka100xs vka100xs vka100xs vka100xs z z z z z 18-36v and 33 - 75v input range z z z z z high efficiency: 87% typical at 5v z z z z z 100 s transient response 50- 100% load step z z z z z 420 khz fixed-frequency operation z z z z z remote sense z z z z z operation to +100 c baseplate temperature z z z z z primary remote on/off, choice of pos/neg logic z z z z z adjustable output voltage z z z z z continuout short-circuit protection z z z z z thermal shutdown z z z z z case ground pin corporate: www.cdtechno.com product: www.cdpoweronline.com the vka100xs series dc/dc converters present an economical and practical solution for distrib- uted power system architectures which require high power density and efficiency while maintaining system modularity and upgradeability. with the ability to operate over a wide input voltage range of 18 to 36 and 33 to 75 volts, these modules are ideal for use in battery backup applications common in todays' telecommuni- cation and electronic data process- ing applications. the output is fully isolated from the input, allowing for a variety of polarity and grounding configurations. the vka100xs's proprietary control circuitry responds to 50- 100% load steps in 100 seconds to within 1% nominal vout. the patented fixed frequency architecture combined with sur- face mount technology results in a compact, efficient and reliable solution to dc/dc conversion requirements. safety per ul1950, en 60950 and csa 22.2 #234 model input vout iout efficiency voltage (vdc) (a) min typ vka100ls02 2.0v 20.0 75 76 vka100ls02f 2.0v 30.0 73 74 vka100ls2v5f 2.5v 30.0 75 76 vka100ls03 3.3v 20.0 80 81 vka100ls03f 3.3v 30.0 80 81 vka100ls05 24vdc 5.0v 20.0 85 86 vka100ls12 12.0v 8.3 87 88 vka100ls15 (18-36) 15.0v 6.7 88 89 vka100ls24 24.0v 4.2 89 90 vka100ms02 2.0v 20.0 76 77 vka100ms02f 2.0v 30.0 74 75 vka100ms2v5f 2.5v 30.0 77 78 vka100ms03 3.3v 20.0 81 82 vka100ms03f 3.3v 30.0 81 82 vka100ms05 48vdc 5.0v 20.0 86 87 vka100ms12 12.0v 8.3 88 89 vka100ms15 (33-75) 15.0v 6.7 89 90 vka100ms24 24.0v 4.2 89 90 product selection chart 1 vka100xs rev c 1/2004 product: www.cdpowerelectronics.com
2 vka100xs rev c 1/2004 product: www .cdpowerelectronics.com specifications, all models specifications are at t case = +40c nominal input voltage unless otherwise specified. input parameter conditions min typ max units input voltage range vka100ls 18 24 36 vdc vka100ms 33 48 75 vdc maximum input current vka100ls v in = 16vdc 7.4 a vka100ms v in = 27vdc 4.4 a reflected ripple current peak - peak 20 ma input ripple rejection dc to 1khz 50 60 db no load input current ls/ms 50/100 ma power dissipation ls/ms no load 3.6/4.8 w standby, primary on/off disabled ls/ms 0.18/0.4 w inrush charge v in = v in max. vka100ls 0.520 mc vka100ms 0.360 mc quiescent operating current primary on/off disabled 8 12 ma output parameter conditions min typ max units rated power 0 100 w set point accuracy 1% line regulation high line to low line 0.02 0.05 % load regulation no load to rated load 0.2 0.5 % output temperature drift .02 %/c output ripple, p-p dc to 20mhz bw 1% v out , nom output current limit inception 130% 150% l out , nom output short-circuit current (2) test 120% 150% l out , nom output overvoltage limit 125% 135% v transient response 50 to 100% load step peak deviation di/dt = 0.1a/ sec 2% v out , nom settling time v out , 1% of nominal output 100 sec general parameter conditions min typ max units isolation input to output peak test for 2 seconds 1500 vdc input to baseplate 1500 vdc output to baseplate 500 vdc resistance 10 m ? capacitance 2000 pf leakage current v iso = 240vac, 60hz 180 a, rms general efficiency, line, load, temp. (3) switching frequency 400 420 440 khz remote sense compensation 0.5 v output voltage adjust range 12 v & higher (4) -50% / +25% v out , nom remote on/off control inputs primary open collector/drain sink current-logic low 1.0 ma vlow 0.4 v vhigh0 open collector turn-on time within 1% of rated output 10.0 12.5 msec weight 85 (3.0) g (oz.) temperature operation/specification case temperature -40 +25 +100 c storage case temperature -55 +25 +125 c shutdown temperature case temperature +100 +115 c thermal impedance, case-ambient 7.1 c/w lead solder temperature 10 seconds max +300 c notes: (1) see typical performance curves, page 3 (2) continuous mode (3) see graphs for efficiency vs. output load, v in , t case (4) 3.3v models limited in trim down range (5) consult factory for details
3 product: www .cdpowerelectronics.com vka100xs rev c 1/2004 typical performance curves t case = +40c nominal input voltage unless otherwise specified. vka100 xszz - device family indicates 100 watt regulated unit model number selected from table of electrical characteristics where: x = input voltage (l = 24vdc; m = 48vdc) zz = output voltage (03=3.3v, 05=5v, etc.) lead length 0.200" - no number 0.145" - (6) 0.110" - (8) remote on-off logic: positive - no number negative - (1) ordering information
4 vka100xs rev c 1/2004 product: www .cdpowerelectronics.com 1.000 [25.40] 1.400 [35.56] 2.000 [50.80] 0.19 [4.8] 0.20 [5.1] 0.50 [12.7] 0.40 [10.16] 0.530 max [13.46] 0.20 [5.1] .040 [1.02] dia. 7 places .081 [2.06] dia. 2 places 1.400 [35.56] 1.000 [25.40] 0.700 [17.78] .400 [10.16] 1.900 [48.26] 2.28 [57.91] max mounting inserts m3 x 0.5 thru, 4 places max. torque, 8 in/lbs 2.40 [61.0] max power electronics division, americas 3400 e britannia drive, tucson, arizona 85706 tel: 800.547.2537 fax: 520.770.9369 c&d technologies, (ncl), emea/ap milton keynes mk14 5bu uk tel: +44 (0)1908 615232 fax: +44 (0)1908 617545 mechanical any data, prices, descriptions or specifications presented herein are subject to revision by c&d technologies, inc. without not ice. while such information is believed to be accurate as indicated herein, c&d technologies, inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness of such information. further, because the product(s) featured herein may be used under conditions beyond its cont rol, c&d technologies, inc. hereby disclaims all warranties, either express or implied, concerning the fitness or suitability of such product(s) for any particula r use or in any specific application or arising from any course of dealing or usage of trade. the user is solely responsible for determining the suitability of the product(s) feat ured herein for user?s intended purpose and in user?s specific application. c&d technologies, inc. does not warrant or recommend that any of its products be used in any life support or aviation or aeros pace applications. special attention should be given to the peak voltage deviation during a dynamic load step when trimming the output above the original set point to avoid tripping the overvoltage protection circuit. should an ovp condition occur, the converter will go into a latch condition and must be externally reset before it will return to normal operation. this feature allows the user to accurately adjust the module's output voltage set point to a specified level. this is achieved by connecting a resistor or potentiometer from the trim terminal to either the +vout terminal (for increased vout) or the -vout terminal (for decreased vout). the formulae below describe the trim resistor value to obtain a vout change of ? %. v o is output voltage prior to adjustment (3.3v, 5v, 12v, 15v, or 24v). radj - up = ( vo(100 + ? %) _ (100 + 2 ? %) ) k ? 1.225 ? % ? % radj - down = ( 100 - 2 ) k ? ? % notes: all dimensions are in inches (millimeters). pin placement tolerance: 0.005" mechanical tolerance: 0.015" marked with: specific model ordered, date code, job code. material: units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance and electrical properties in high humidity environments and over a wide operating temperature range. the encapsulant and outer shell of the unit have ul94v-0 ratings. lead material is solder plated to allow ease of solderability. output adjust voltage ovp note


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