? rohs compliant ? 33 - 75v input range ? high ef? ciency: 87% typical at 5v ? 100ms transient response 50- 100% load step ? 420 khz fixed-frequency operation ? remote sense ? operation to +100c baseplate temperature ? primary remote on/off, choice of pos/neg logic ? adjustable output voltage ? continuout short-circuit protection ? thermal shutdown ? case ground pin the vka100xsc series dc/dc con- verters present an economical and practical solution for distributed power system architectures which require high power density and ef? ciency while maintaining system modularity and upgradeability. with the ability to oper- ate 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 telecommunication and electronic data processing applications. the output is fully isolated from the input, allowing for a variety of polarity and grounding con? gurations. the vka100xscs proprietary con- trol circuitry responds to 50-100% load steps in 100mseconds to within 1% nominal vout. the patented ? xed frequency architecture combined with surface mount technology results in a compact, ef? cient and reliable solution to dc/ dc conversion requirements. safety per ul1950, en 60950 and csa 22.2 #234 product selection chart email: sales@murata-ps.com 04 may 2011 vka100c.bo5 page 1 of 4 vka100 100 watt adjustable output dc/dc converter www.murata-ps.com for full details go to www.murata-ps.com/rohs $ www.murata-ps.com model input vout iout efficiency voltage (vdc) (a) min typ vka100ls02c 2.0v 20.0 75 76 vka100ls02fc 2.0v 30.0 73 74 vka100ls2v5fc 2.5v 30.0 75 76 vka100ls03c 3.3v 20.0 80 81 vka100ls03fc 3.3v 30.0 80 81 vka100ls05c 24vdc 5.0v 20.0 85 86 vka100ls12c 12.0v 8.3 87 88 vka100ls15c (18-36) 15.0v 6.7 88 89 vka100ls24c 24.0v 4.2 89 90 VKA100MS02C 2.0v 20.0 76 77 vka100ms02fc 2.0v 30.0 74 75 vka100ms2v5fc 2.5v 30.0 77 78 vka100ms03c 3.3v 20.0 81 82 vka100ms03fc 3.3v 30.0 81 82 vka100ms05c 48vdc 5.0v 20.0 86 87 vka100ms12c 12.0v 8.3 88 89 vka100ms15c (33-75) 15.0v 6.7 89 90 vka100ms24c 24.0v 4.2 89 90 m pl ia nt i np ut r a an ge c ie nc y: 8 8 7% t yp i ic al a t 5v v r an si en t t re sp on se 5 0- d st ep ? op er at i o n to + 1 0 0 c ba a se p te e mp er at ur e ? pr im ar y y re mo te e o n/ of f, , c h p os /n eg g l og ic ? ad ju st a ab le o ut p pu t vo lt ag g e ? co nt in u uo ut s ho r rt c ir cu it t p targeted for obsolescence targeted for obsolescence targeted for obsolescence targeted for obsolescence targeted for obsolescence targeted for obsolescence obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete obsolete
specifications, all models speci cations are at t case = +40? nominal input voltage unless otherwise speci ed. 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 re ected ripple current peak - peak 20 ma input ripple rejection dc to 1khz 50 60 db no load input current ls/ms 140/80 ma no load power dissipation ls/ms 3.4/3.8 w standby, primary on/off disabled ls/ms 0.12/0.24 w inrush charge v in = v in max. vka100ls 0.520 mc vka100ms 0.360 mc quiescent operating current primary on/off disabled 5 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 %/? 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 ef ciency, 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/speci cation case temperature -40 +25 +100 ? storage case temperature -55 +25 +125 ? shutdown temperature case temperature +100 +115 ? thermal impedance, case-ambient 7.1 ?/w lead solder temperature 10 seconds max +300 ? notes: (1) see typical performance curves, page 3 (2) continuous mode (3) see graphs for ef ciency vs. output load, v in , t case (4) 3.3v models limited in trim down range (5) consult factory for details email: sales@murata-ps.com 04 may 2011 vka100c.bo5 page 2 of 4 vka100 100 watt adjustable output dc/dc converter www.murata-ps.com
power dissipation (w) ambient air temperature ( c) typical performance curves t case = +40? nominal input voltage unless otherwise speci ed. 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 email: sales@murata-ps.com 04 may 2011 vka100c.bo5 page 3 of 4 vka100 100 watt adjustable output dc/dc converter www.murata-ps.com
2.28 [57.91] max 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] mounting inserts m3 x 0.5 thru, 4 places max. torque, 8 in/lbs 2.40 [61.0] max mechanical notes: all dimensions are in inches (millimeters). pin placement tolerance: 0.005 mechanical tolerance: 0.015? marked with: speci c 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. this feature allows the user to accurately adjust the module?s output voltage set point to a speci? ed 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 % output adjust voltage 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. ovp note email: sales@murata-ps.com 04 may 2011 vka100c.bo5 page 4 of 4 vka100 100 watt adjustable output dc/dc converter murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ? 2011 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered www.murata-ps.com/locations
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