key features: ? 4w output power ? 2:1 input voltage range ? 1,500 vdc isolation ? 30 standard models ? high ef? ciency ? compact dip case ? -40c to +85c operation ? metal case available ? low cost ma400rw wide 2:1 input, 4w, high performance, dip dc/dc con vert ers input parameter conditions min. typ. max. units input voltage range 12 vdc input 9.0 12.0 18.0 vdc 24 vdc input 18.0 24.0 36.0 48 vdc input 36.0 48.0 72.0 input re ected ripple current 35 ma p - p input filter (pi) filter output parameter conditions min. typ. max. units output voltage accuracy ?.0 % line regulation v in = min to max ?.5 % load regulation i out = 25% to 100% ?.5 % load regulation see note 1 ?.5 % ripple & noise (20 mhz) see note 2 60 mv p - p temperature coef cient ?.02 %/? output short circuit continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage, see note 3 3 seconds 1,500 vdc isolation resistance 500 vdc 1,000 m? isolation capacitance 100 khz/0.1v 60 pf switching frequency 100 400 khz environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +85 ? operating temperature range case +100 ? storage temperature range -40 +125 ? cooling free air convection humidity rh, non-condensing 95 % physical case size 1.25 x 0.80 x 0.40 inches (31.75 x 20.32 x 10.16 mm) case material, plastic non-conductive black plastic (ul94-v0) weight, plastic case 0.44 oz (12.5g) case material, metal nickel-coated copper with non-conductive base (ul94-v0) weight, metal case 0.53 oz (15g) reliability speci? cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25?, gnd benign 1.0 mhours absolute maximum ratings parameter conditions min. typ. max. units input voltage surge (1 sec) 12 vdc input -0.7 24.0 vdc 24 vdc input -0.7 40.0 48 vdc input -0.7 80.0 lead temperature 1.5 mm from case for 10 sec 260 ? caution: exceeding absolute maximum ratings may damage the module. these are not continuous operating ratings. electrical speci? cations speci cations typical @ +25?, nominal input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice. www.micropowerdirect.com micropower direct 292 page street suite d stoughton, ma 02072 usa t: (781) 344-8226 f: (781) 344-8481 e: sales@micropowerdirect.com w: www.micropowerdirect.com series 3.5 kv isolation models available alternate pin-out available
model selection guide www.micropowerdirect.com notes: 1. cross regulation is measured with the output being tested at 100% load while the other output is varied from 25% to 100% load. 2. see the typical connection circuit on page three for typical external ltering components. for help with a speci c model or layout issue, contact the factory. 3. isolation voltage is speci ed for input to output. on units with the optional metal case, the isolation voltage for input - case and output - case is 1,000 vdc. 4. operation at no-load will not damage the unit, but they may not meet all speci cations. to meet all speci ca- tions, a minimum load of 25% should be maintained. 5. it is recommended that a fuse be used on the input of a power supply for protection. see the model selection table above for the correct rating. model number input output ef? ciency (%, typ) re? ected ripple current (ma typ) capacitive load (f, max) fuse rating slow-blow (ma) voltage (vdc) current (ma) voltage (vdc) current (ma, max) current (ma, min) nominal range full-load no-load ma412s-05rw-xx 12 9.0 - 18.0 463 20 5.0 800.0 200.0 72 35.0 2,200 1,000 ma412s-09rw-xx 12 9.0 - 18.0 427 20 9.0 444.0 111.0 78 35.0 470 1,000 ma412s-12rw-xx 12 9.0 - 18.0 427 20 12.0 333.0 83.3 78 35.0 470 1,000 ma412s-15rw-xx 12 9.0 - 18.0 433 20 15.0 267.0 66.8 77 35.0 470 1,000 ma412s-24rw-xx 12 9.0 - 18.0 439 20 24.0 167.0 42.0 76 35.0 220 1,000 ma412d-05rw-xx 12 9.0 - 18.0 433 20 ?.0 ?00.0 ?00.0 77 35.0 ?,000 1,000 ma412d-09rw-xx 12 9.0 - 18.0 433 20 ?.0 ?22.0 ?6.0 77 35.0 ?20 1,000 ma412d-12rw-xx 12 9.0 - 18.0 427 20 ?2.0 ?67.0 ?2.0 78 35.0 ?20 1,000 ma412d-15rw-xx 12 9.0 - 18.0 427 20 ?5.0 ?33.0 ?3.0 78 35.0 ?20 1,000 ma412d-24rw-xx 12 9.0 - 18.0 433 20 ?4.0 ?3.0 ?1.0 77 35.0 ?00 1,000 ma424s-05rw-xx 24 18.0 - 36.0 216 12 5.0 800.0 200.0 77 35.0 2,200 500 ma424s-09rw-xx 24 18.0 - 36.0 214 12 9.0 444.0 111.0 78 35.0 470 500 ma424s-12rw-xx 24 18.0 - 36.0 211 12 12.0 333.0 83.3 79 35.0 470 500 ma424s-15rw-xx 24 18.0 - 36.0 208 12 15.0 267.0 66.8 80 35.0 470 500 ma424s-24rw-xx 24 18.0 - 36.0 216 12 24.0 167.0 42.0 77 35.0 220 500 ma424d-05rw-xx 24 18.0 - 36.0 225 12 ?.0 ?00.0 ?00.0 77 35.0 ?,000 500 ma424d-09rw-xx 24 18.0 - 36.0 225 12 ?.0 ?22.0 ?6.0 77 35.0 ?20 500 ma424d-12rw-xx 24 18.0 - 36.0 219 12 ?2.0 ?67.0 ?2.0 78 35.0 ?20 500 ma424d-15rw-xx 24 18.0 - 36.0 216 12 ?5.0 ?33.0 ?3.0 79 35.0 ?20 500 ma424d-24rw-xx 24 18.0 - 36.0 219 12 ?4.0 ?3.0 ?1.0 76 35.0 ?00 500 ma448s-05rw-xx 48 36.0 - 72.0 108 8 5.0 800.0 200.0 77 35.0 2,200 250 ma448s-09rw-xx 48 36.0 - 72.0 108 8 9.0 444.0 111.0 77 35.0 470 250 ma448s-12rw-xx 48 36.0 - 72.0 107 8 12.0 333.0 83.3 78 35.0 470 250 ma448s-15rw-xx 48 36.0 - 72.0 107 8 15.0 267.0 66.8 77 35.0 470 250 ma448s-24rw-xx 48 36.0 - 72.0 111 8 24.0 167.0 42.0 75 35.0 220 250 ma448d-05rw-xx 48 36.0 - 72.0 114 8 ?.0 ?00.0 ?00.0 73 35.0 ?,000 250 ma448d-09rw-xx 48 36.0 - 72.0 108 8 ?.0 ?22.0 ?6.0 77 35.0 ?20 250 ma448d-12rw-xx 48 36.0 - 72.0 108 8 ?2.0 ?67.0 ?2.0 77 35.0 ?20 250 ma448d-15rw-xx 48 36.0 - 72.0 107 8 ?5.0 ?33.0 ?3.0 78 35.0 ?20 250 ma448d-24rw-xx 48 36.0 - 72.0 110 8 ?4.0 ?3.0 ?1.0 76 35.0 ?00 250 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com model number for the alternate pin-out (see page 4) , add suf x ?2?to model number (i.e. ma424s-05rw-p2) derating curve
www.micropowerdirect.com typical connection typical board layout : with external filter components, single output the diagram above illustrates a typical connection of the ma400rw series for applications that require meeting conducted emc standards. the units do not require external components to operate as speci ed. for applications requiring very low output noise levels, the output ltering capacitors (c 3 is a low esr electrolytic & c 4 is a ceramic) will often be suf cient. care must be taken in choosing output capacitors not to exceed the capacitive load speci cation for the unit. for dual output units, output capacitors should be connected from each output to common. all external components should be mounted as close to the unit as possible. input noise and surge suppression modules are available for a number of mpd dc/dc power supplies. contact the factory for more information. micropower direct 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com typical board layout : with external filter components, dual output the recommended values for components are: component 12 v in 24 v in 48 v in c 1 220 f/50v 220 f/100v 220 f/100v lcm 12 h 12 h 12 h c 2 --- 470 pf/2kv mlcc 470 pf/2kv mlcc c 3 100 f 100 f 100 f c 4 4.7 - 10 f 4.7 - 10 f 4.7 - 10 f
www.micropowerdirect.com notes: all dimensions are typical in inches (mm) tolerance x.xx = ?.02 (?.50) pin 1 is marked by a ?ot or indentation on the top of the unit micropower direct we power your success - for less! 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com standard units - plastic case pin single output pin dual output 2-v in 2-v in 3-v in 3-v in 9 no pin 9 common 11 no connection 11 -v out 14 +v out 14 +v out 16 -v out 16 common 22 +v in 22 +v in 23 +v in 23 +v in pin con nec tions s standard units - metal case mechanical dimensions pin single output pin dual output 1+v in 1+v in 2 no connection 2 -v out 3 no connection 3 common 10 -v out 10 common 11 +v out 11 +v out 12 -v in 12 -v in 13 -v in 13 -v in 14 +v out 14 +v out 15 -v out 15 common 22 no connection 22 common 23 no connection 23 -v out 24 +v in 24 +v in pin con nec tions pin s in gle o utpu t 1 +v in 2 no con nec tio n pin c on nec ti o alternate pin-out units - plastic case pin dual o ut p u t 1 +v in 2 v out alternate pin-out units - metal case for the alternate pin-out, add suf x ?2?to model number (i.e. ma424s-05rw-p2)
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