key features: ? 30w output power ? 4:1 input voltage range ? 1,500 vdc isolation ? single & dual outputs ? ef? ciency to 90% ? compact 1.6 x 2 inch case ? -40c to +85c operation ? industry standard pin-out ? low cost mf3000eru wide 4:1 input, 30w single & dual output dc/dc con vert ers input parameter conditions min. typ. max. units input voltage range 24 vdc input 9.0 24.0 36.0 vdc 48 vdc input 18.0 48.0 75.0 under voltage lockout 24 vdc input on 9.0 vdc off 7.8 48 vdc input on 17.8 off 16.0 input filter (pi) filter output parameter conditions min. typ. max. units output voltage accuracy ?.0 ?.0 % output trim range ?0 % line regulation v in = min to max ?.2 ?.5 % load regulation i out = 5% to 100% ?.5 ?.0 % cross regulation see note 1 ?.0 % ripple & noise (20 mhz) see note 2 85 100 mv p - p transient recovery time, see note 3 25% load step change 300 500 ?ec transient response deviation ?.0 ?.0 % temperature coef cient ?.02 %/? over power protection 150 %i out output short circuit, see note 4 continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage 60 seconds 1,500 vdc isolation resistance 500 vdc 1,000 m? isolation capacitance 100 khz, 0.1v 2,000 pf switching frequency 400 khz environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +85 ? operating temperature range case +105 ? storage temperature range -55 +125 ? cooling free air convection humidity rh, non-condensing 95 % physical case size 2.0 x 1.60 x 0.465 inches (50.8 x 40.6 x 11.8 mm) case material aluminum alloy with non-conductive base (ul94-v0) weight without heatsink 1.77 oz (50g) with heatsink 2.48 oz (70g) remote on/off parameter conditions min. typ. max. units unit on see note 5 2.5 12.0 vdc unit off see note 5 0 1.2 vdc off idle current 1.0 ma 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) 24 vdc input -0.7 50.0 vdc 48 vdc input -0.7 100.0 lead temperature 1.5 mm from case for 10 sec 300 ? 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
model selection guide 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com www.micropowerdirect.com notes: 1. cross regulation is measured with the output being tested at 50% load. the second output is varied from 10% to 100% load. 2. when measuring output ripple, it is recommended that an external ceramic capacitor (approx 4.7 - 10 ?) be placed from the +v out to the -v out pins for single output models; or from each output to common for dual output models. 3. transient recovery is measured to within a 1% error band for a load step change of 25%. 4. short circuit protection is provided by a ?iccup mode circuit. 5. if the on/off pin is left open, the unit operates. if it is grounded, the unit will shut off. the control circuit is referenced to the minus (-) input. 6. these units should not be operated with a load under 5% of full load. operation at no-load will not damage the unit, but they may not meet all speci cations. 7. these units should not be operated over +85?. exceeding +85? may damage the unit. 8. 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 re? ected ripple current (ma typ) capacitive load (f, max) ef? ciency (%, typ) fuse rating slow-blow (ma) voltage (vdc) current (ma) voltage (vdc) current (ma, max) current (ma, min) nominal range full-load no-load mf3024s-05eru(-h) 24 9.0 - 36.0 1,420 120 5.0 6,000 300 30 6,000 88 8,000 mf3024s-12eru(-h) 24 9.0 - 36.0 1,420 30 12.0 2,500 125 30 2,500 88 8,000 mf3024s-15eru(-h) 24 9.0 - 36.0 1,389 30 15.0 2,000 100 30 1,100 90 8,000 mf3024d-05eru(-h) 24 9.0 - 36.0 1,453 30 ?.0 ?,000 ?50 30 ?,000 86 8,000 mf3024d-12eru(-h) 24 9.0 - 36.0 1,404 30 ?2.0 ?,250 ?3 30 ?,250 89 8,000 mf3024d-15eru(-h) 24 9.0 - 36.0 1,389 30 ?5.0 ?,000 ?0 30 ?80 90 8,000 mf3048s-05eru(-h) 48 18.0 - 75.0 710 100 5.0 6,000 300 30 6,000 88 4,000 mf3048s-12eru(-h) 48 18.0 - 75.0 710 30 12.0 2,500 125 30 2,500 88 4,000 mf3048s-15eru(-h) 48 18.0 - 75.0 702 30 15.0 2,000 100 30 1,100 89 4,000 mf3048d-05eru(-h) 48 18.0 - 75.0 726 30 ?.0 ?,000 ?50 30 ?,000 86 4,000 mf3048d-12eru(-h) 48 18.0 - 75.0 718 30 ?2.0 ?,250 ?3 30 ?,250 87 4,000 mf3048d-15eru(-h) 48 18.0 - 75.0 718 30 ?5.0 ?,000 ?0 30 ?80 87 4,000 derating curve , with heatsink external trim , up a simple external circuit may be used to adjust the converter output 10%. the trim circuit is illustrated in the diagrams above. the following formulas may be used to calculate the correct resistor value. to trim the output up, the correct resistor value (in k ? ) equals: rr : up ra axr where axr 3 . . v 2 2 1 25 25 adj = - - = - to trim the output down, the correct resistor value (in k ? ) equals: rr : dwn ra axr where axr 3 . .v 1 1 2 25 25 adj = - - = - other equation values are: unit output voltage 5v 12v 15v r 1 2.883 10.971 14.497 r 2 2.864 2.864 2.864 r 3 10.0 17.8 17.8 v adj amount of adjustment external trim , down derating curve , without heatsink for the heatsink option, add suf x ??to the model number (i.e. mf3024s-05eru-h)
micropower direct 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com www.micropowerdirect.com emc speci? cations parameter standard radiated emissions see note 1 en 55022 class a conducted emissions see note 1 en 55022 class a esd en 61000-4-2 criteria b; ? kv contact rs en 61000-4-3 criteria a; 10v/m eft see note 2 en 61000-4-4 criteria b; ? kv surge see note 3 en 61000-4-5 criteria b; ? kv cs en 61000-4-6 criteria a; 3 vrms voltage dips en 61000-4-29 criteria b; 0% - 70% typical connection the diagram at left illustrates a typical connection of the mf3000xeru series for applications that require meeting emc standards. the units do not require external components to operate as speci ed. some notes on this diagram (starting with the input circuit) are: 1. it is recommended that an external fuse be used. the recommended fuse is shown in the model chart on page 2. 2. an external mov is recommended on the input to protect the unit in the event of a surge. a recommended value is given in the table below. 3. an external tvs is recommended on the input to protect the unit in the event of a voltage spike. a recommended value is given in the table at below. 4. the output ltering capacitor (c 5 ) is a high frequency, low resistance electrolytic capacitor. care must be taken in choosing this capacitor not to exceed the capacitive load speci cation for the unit. the board layout illustrations at left show connec- tions for single and dual output units. voltage derating of capacitors should be 80% or above. 5. recommended values for components are: component 24 v in 48 v in mov 10d560k 10d101k l 1 56 h 56 h tvs smcj48a smcj90a c 1 120 f/50v 120 f/100v c 2 4.7 f/50v 2.2 f/100v l 2 2.2 mh 2.2 mh c 3 4.7 f/50v 2.2 f/100v c 4, c 5 1.0 nf/2 kv 1.0 nf/2 kv 6. in many applications simply adding input/output capacitors will enhance the input surge protection and reduce output ripple suf ciently. the input capacitor c 1 and output capacitors c 6 and c 7 shown in the typical connection diagram above, and board layout draw- ings at left their connection. in this case, recommended capacitor values are: c in : 10 f for 24v input models 10 f for 48v input models c out : 10 f for 5v out models 4.7 f for 12/15v out models 8. the pad spacing between input/output (c 4 & c 5 ) in the board layout drawings below should be a minimum of 2 mm. notes: 1. all units are rated for en 55022 (ce/re) class a without external components. they will meet class b with the addition of the mdcfm-1b (or a similar discrete lter circuit). contact the factory for more information. 2. to meet the requirements of en 61000-4-4 ( ? kv), external components are needed, as shown on the typical connection diagram below. use the mdcfm-1b to meet en 61000-4-4 (? kv). contact the factory for more information. 3. to meet the requirements of en 61000-4-5 ( ? kv), external components are needed. this can be done discretely, or with the addition of the mdcfm-1b. contact the factory for more information. typical board layout : with external filter/surge components for single output unit typical board layout : with external filter/surge components for dual output 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 www.micropowerdirect.com notes: all dimensions are typical in inches (mm) tolerance x.xx = ?.02 (?.50) w ww.m i cro p ower di rect.co m www.micropowerdirect.com mechanical dimensions mechanical dimensions: with optional heatsink pin single output 1+vin 2-vin 4 remote on/off 5 no pin 6 +vout 7 -vout 8 trim pin dual output 1+vin 2-vin 4 remote on/off 5 +vout 6 common 7 -vout 8 trim pin con nec tions for the heatsink option, add suf x ??to the model number (i.e. mf3048d-12eru-h)
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