mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 1 of 7 www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ selection guide order code nominal input voltage output voltage output current input current at rated load load regulation (typ) load regulation (max) ripple & noise (typ) 3 ripple & noise (max) 3 ef?ciency (min) ef?ciency (typ) mttf 2 v v ma % mvp-p % khrs mej2s0303sc 3.3 3.3 606 756 14.0 17 38 55 67 70 3910 mej2s0305sc 3.3 5 400 784 13.0 15 50 65 70 74 3757 mej2s0503sc 5 3.3 606 528 10.0 15 40 55 67 70 3830 mej2s0505sc 5 5 400 503 8.5 10 43 55 72 75 3654 mej2s0509sc 5 9 222 505 8.0 11 36 50 75 78 3472 mej2s0512sc 5 12 167 495 8.0 12 40 55 74 77 3663 mej2s0515sc 5 15 133 488 7.0 10 34 45 76 79 2629 mej2s1203sc 12 3.3 606 207 9.5 11 43 60 70 73 3259 mej2s1205sc 12 5 400 214 8.0 10 43 60 75 78 3200 mej2s1209sc 12 9 222 205 7.0 10 35 50 75 79 2453 mej2s1212sc 12 12 167 207 6.5 8 35 50 76 80 2779 mej2s1215sc 12 15 133 205 7.0 10 32 45 76 80 2707 mej2s1505sc 15 5 400 171 8.5 10 44 60 73 76 2638 mej2s1509sc 15 9 222 165 6.5 8 35 50 74 78 2203 mej2s1512sc 15 12 167 164 6.5 8 38 55 74 79 2330 mej2s1515sc 15 15 133 166 7.0 8 36 50 74 78 2100 MEJ2D0503SC 5 3.3 303 535 8.5 10 26 40 67 71 3969 mej2d0505sc 5 5 200 508 7.5 9 34 50 72 76 3654 mej2d0509sc 5 9 111 510 6.5 8 27 40 76 79 3472 mej2d0512sc 5 12 83 504 5.0 8 27 40 77 80 3663 mej2d0515sc 5 15 67 492 6.5 7 20 35 76 79 2629 mej2d1203sc 12 3.3 303 205 8.0 9 37 55 72 75 3270 mej2d1205sc 12 5 200 212 7.0 8 32 45 75 79 3268 mej2d1209sc 12 9 111 206 5.5 7 27 40 77 81 2453 mej2d1212sc 12 12 83 208 5.5 7 27 40 77 81 2779 mej2d1215sc 12 15 67 203 6.0 7 24 40 78 82 2707 mej2d1505sc 15 5 200 170 7.0 9 37 50 74 78 2638 mej2d1509sc 15 9 111 163 5.5 7 26 40 76 80 2203 mej2d1512sc 15 12 83 167 5.5 7 26 40 75 80 2330 mej2d1515sc 15 15 67 167 5.5 7 23 35 75 79 2100 input characteristics parameter conditions min. typ. max. units voltage range continuous operation, 3v input types 2.97 3.3 3.63 v continuous operation, 5v input types 4.5 5 5.5 continuous operation, 12v input types 10.8 12 13.2 continuous operation, 15v input types 13.5 15 16.5 input re?ected ripple 3.3v input types 100 140 ma 5v input types 60 90 12v & 15v input types 22 40 1. calculated using mil-hdbk-217 fn2 calculation model with nominal input voltage at full load. 2. see safety approvals section for limitations of use. 3. see ripple & noise test method. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. features rohs compliant basic/supplementary isolation to ul 60950 2 ul60601 (3rd ed) recognition 2 power density 0.81w/cm 3 single and dual outputs ul 94v-0 package material footprint 1.96cm 2 sip package style 5.2kvdc isolation 3.3v, 5v, 12v & 15v inputs 3.3v, 5v, 9v, 12v & 15v output internal smd construction fully encapsulated with toroidal magnetics pin compatible with the mev, nmv, nmk, & nmj series mttf up to 4200 million hours product overview the mej2 series are single and dual output medically approved dc/dc converters in a 7 pin sip package style offering a power upgrade path from the nmj series sip dc/dc converters. the mej2 series is ul 60950 and ul 60601 recognized, which makes it ideal for applications where safety and miniaturisation are of paramount importance.
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 2 of 7 www.murata-ps.com/support output characteristics parameter conditions min. typ. max. units rated power 2 t a =-40 oc to 85 oc 2w voltage set point accuracy see tolerance envelopes line regulation high v in to low v in 1.0 1.2 %/% absolute maximum ratings short-circuit protection 10 minutes lead temperature 1mm from case for 10 seconds 260c input voltage v in , mej2x03xxsc 5v input voltage v in , mej2x05xxsc 7v input voltage v in , mej2x12xxsc 15v input voltage v in, mej2x15xxsc 18v isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 5200 vdc resistance viso= 500vdc 1g isolation capacitance 4pf general characteristics parameter conditions min. typ. max. units switching frequency all types 45 khz temperature characteristics parameter conditions min. typ. max. units speci?cation all output types (see safety approval section for limitations) -40 85 c storage -55 125 case temperature above ambient mej2s0509sc, mej2s0512sc, mej2s0515sc, mej2s1209sc, mej2x1212sc, mej2s1215sc, mej2s1509sc, mej2s1512sc, mej2s1515sc 27 mej2s0503sc, mej2s0505sc, mej2s1203sc, mej2s1205sc, mej2x1505sc, mej2s1515sc, mej2d0512sc, mej2d0515sc, mej2d1209sc, mej2d1215sc 30 mej2s0305sc, mej2s0303sc, mej2s1203sc, mej2d0505sc, mej2d0509sc, mej2d1205sc, mej2d1509sc, mej2d1512sc 33 mej2d01203sc, MEJ2D0503SC 37 cooling free air convection temperature derating graph ul60950 recognition to a maximum ambient temperature of 85oc and/or case temperature limit of 155oc, measured on the face oppos ite the pins. 85 40 0 -40 0.2 1.0 2.0 ambient temperature (oc) output power (w) safe operating area
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 3 of 7 www.murata-ps.com/support technical notes isolation voltage hi pot test, flash tested, withstand voltage, proof voltage, dielectric withstand voltage & isolation test voltage are all terms that relate to the same thing, a test voltage, applied for a speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of t hat isolation. murata power solutions mej2 series of dc/dc converters are all 100% production tested at their stated isolation voltage. this i s 5.2kvdc for 1 second. a question commonly asked is, what is the continuous voltage that can be applied across the part in normal operation? the mej2 series has been recognized by underwiters laboratory for various voltages, please see safety approval section below. repeated high-voltage isolation testing it is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. we therefore strongly advise against repeated high voltage isolation testing, but if i t is absolutely required, that the voltage be reduced by 20% from speci?ed test voltage. safety approval ul 60601 the mej2 series has been recognized by underwriters laboratory (ul) to the 3rd edition of 60601 and provides the following moop (means of operator protection), in a maximum ambient temperature of 85c and/or case temperature limit of 130c (case temperature measured on the face opposite the pins): 2 moop based upon a working voltage of 200 vrms max. and 280 vpkmax., between primary and secondary and 1 moop based upon a working voltage of 200 vrms max., between prim ary and its enclosure. file number e202895 applies. ul 60950 the mej2 series has been recognized by underwriters laboratory (ul) to ul 60950 for basic/supplementary insulation to a working voltage of 200vrms in a maximum ambient temperature of 85c and/or case temperature limit of 130c (case temperature measured on the face opposite the pins). file numb er e151252 applies. fusing the mej2 series of converters are not internally fused so to meet the requirements of ul an anti-surge input line fuse should a lways be used with ratings as de?ned below. mej2x03xxxc: 2a mej2x05xxxc: 2a mej2x12xxxc: 750ma mej2x15xxxc: 750ma all fuses should be ul recognized and rated to at least the maximum allowable dc input voltage. rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 260oc for 10 seconds. the pin term ination ?nish on this product series is tin plate, hot dipped over matte tin with nickel preplate. the series is backward compatible with sn/ pb soldering systems. for further information, please visit www.murata-ps.com/rohs tolerance envelope +10% output load current (%) output voltage -7.5% +2.5% 100 75 50 25 10 v nom 100 75 50 25 10 -7% +9% output load current (%) output voltage -17% +1% v nom 3.3v in, 3.3v output types all other output types the voltage tolerance envelope shows typical load regulation characteristics for this product series. the tolerance envelope is the maximum output voltage variation due to changes in output loading.
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 4 of 7 www.murata-ps.com/support application notes minimum load the minimum load to meet datasheet speci?cation is 10% of the full rated load across the speci?ed input voltage range. lower th an 10% minimum loading will result in an increase in output voltage, which may rise to typically double the speci?ed output voltage if the output load falls to le ss than 5%. capacitive loading and start up typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10f, are sho wn in the table below. the product series will start into a capacitance of 47f with an increased start time, however, the maximum recommended output capacitance is 10f. ripple & noise characterisation method ripple and noise measurements are performed with the following test con?guration. c1 1f x7r m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the dc/dc converter c2 10f tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the dc/dc converter with an esr of l ess than 100m at 100 khz c3 100nf multilayer ceramic capacitor, general purpose r1 450 resistor, carbon ?lm, 1% tolerance r2 50 bnc termination t1 3t of the coax cable through a ferrite toroid rload resistive load to the maximum power rating of the dc/dc converter. connections should be made via twisted wires measured values are multiplied by 10 to obtain the speci?ed values. differential mode noise test schematic start-up time start-up time ms ms mej2s0303sc 0.89 mej2s1515sc 6.05 mej2s0305sc 1.89 MEJ2D0503SC 1.57 mej2s0503sc 1.08 mej2d0505sc 1.79 mej2s0505sc 2.04 mej2d0509sc 9.32 mej2s0509sc 6.5 mej2d0512sc 14.9 mej2s0512sc 8.29 mej2d0515sc 20.84 mej2s0515sc 11.4 mej2d1203sc 1.03 mej2s1203sc 0.73 mej2d1205sc 2.51 mej2s1205sc 1.61 mej2d1209sc 6.46 mej2s1209sc 4.04 mej2d1212sc 9.94 mej2s1212sc 5.51 mej2d1215sc 14.54 mej2s1215sc 7.61 mej2d1505sc 1.79 mej2s1505sc 1.33 mej2d1509sc 5.16 mej2s1509sc 3.37 mej2d1512sc 7.04 mej2s1512sc 4.47 mej2d1515sc 10.48 typical start-up wave form oscilloscope y input supply c1 c2 c3 r1 t1 r2 input output dc/dc converter r load + + - -
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 5 of 7 www.murata-ps.com/support efficiency vs load mej2s03xxsc mej2s05xxsc mej2s12xxsc mej2s15xxsc 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 3.3v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v 3.3v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v 3.3v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 6 of 7 www.murata-ps.com/support efficiency vs load mej2d05xxsc mej2d12xxsc mej2d15xxsc 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v 3.3v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v 3.3v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 ef?ciency (%) load (%) 5v 9v 12v 15v
mej2 series 5.2kvdc isolated 2w dc/dc converters kdc_mej2c.b01 page 7 of 7 www.murata-ps.com/support 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 chan ge without notice. ? 2013 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans?eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical application sales policy : refer to: http://www.murata-ps.com/requirements/ package specifications mechanical dimensions pin connections dual output single output pin function pin function 1+v in 1+v in 2-v in 2-v in 5-v out 5-v out 6ov 7+v out 7+v out recommended footprint details tube outline dimensions weight: 4.2g 6.00 (0.236) 5.00 (0.197) 5.20 (0.205) 1.50 (0.059) 0.60.15 (0.0240.006) 14.20 (0.559) 2.54 (0.1) x5 holes ? 0.10 (0.004) 1.15 (0.045) 1.00 (0.039) 2.54 (0.1) * unless otherwise stated all dimensions in inches 0.02 (mm 0.5mm). tube length : 20.6690.079 (525mm2mm). tube quantity : 25 19.65 (0.77) max. 4.60 (0.18) 3.60 (0.14) 12.65 (0.5) max. 9.95 (0.39) max. 2.54 (0.1) 0.55 (0.022) 0.45 (0.018) 0.4 (0.016) min. 0.3 (0.012) 0.2 (0.008) 2.95 (0.12) 2.50.5 (0.0980.02) 1 2 5 6* 7 all dimensions in mm 0.25mm (inches 0.01). all pins on a 2.54 (0.1) pitch and within 0.25 (0.01) of true position. * pin not ?tted on single output variants. * hole not required for single output variants. all dimensions in inches 0.01 (mm 0.25mm).
|
