key features: ? 15w output power ? 4:1 input voltage range ? 1,500 vdc isolation ? single & dual outputs ? ef? ciency to 90% ? compact 1 x 2 inch case ? -40c to +85c operation ? industry standard pin-out ? low cost MB1500ERU low cost, 1 x 2 inch 15w, 4:1 input range 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 input start voltage 24 vdc input 9.0 vdc 48 vdc input 17.8 input filter (pi) filter start-up time see note 2 10 ms output parameter conditions min. typ. max. units output voltage accuracy ?.0 ?.0 % output voltage balance dual outputs, balanced loads ?.5 ?.0 output trim range ?0 % line regulation v in = min to max ?.2 ?.5 % load regulation i out = 10% to 100% ?.5 ?.0 % cross regulation see note 3 ?.0 % ripple & noise (20 mhz) see note 4 70 100 mv p - p transient recovery time, see note 5 25% load step change 300 500 ?ec transient response deviation ?.0 ?.0 % output power protection 160 % temperature coef cient ?.02 %/? output short circuit, see note 6 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 see note 7 1,000 pf switching frequency 300 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 see mechanical diagram (page 4) case material aluminum alloy with non-conductive base (ul94-v0) weight 0.99 oz (28g) remote on/off parameter conditions min. typ. max. units unit on see note 8 2.5 12.0 vdc unit off see note 8 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 vibration 10 - 55 hz, 10g, 30 min, on x, y & z axis 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. the speci ed maximum capacitive load is for each output. 2. start up time is measured at nominal input and with a constant resistive load. 3. cross regulation is measured with the main output set at 50% load. the second output is varied from 10% to 100% load. 4. when measuring output ripple, it is recommended that an external ceramic capacitor (approx 1 ? to 10 ?) be placed from the +v out to the -v out pins. 5. transient recovery is measured to within a 1% error band for a load step change of 25%. 6. short circuit protection is provided by a ?iccup mode circuit. 7. isolation capacitance for 24 vdc output models is 2,000 pf. isolation capacitance is measured from input to output at 100 khz/0.1v. 8. the control input (pin 6) is referenced to the -v in (pin 2) input. if it is grounded, the unit will shut off. 9. these units should not be operated with a load under 10% of full load. operation at no-load will not damage the unit, but they may not meet all speci cations. 10. these units should not be operated over +85?. exceeding +85? may damage the unit. 11. 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) over voltage protection (vdc 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 mb1524s-03eru 24 9.0 - 36.0 633 45 3.3 4,000 200 87 3.9 10,200 1,500 mb1524s-05eru 24 9.0 - 36.0 695 45 5.0 3,000 150 90 6.2 4,020 1,500 mb1524s-12eru 24 9.0 - 36.0 703 15 12.0 1,250 63 89 15.0 1,035 1,500 mb1524s-15eru 24 9.0 - 36.0 703 15 15.0 1,000 50 89 18.0 705 1,500 mb1524s-24eru 24 9.0 - 36.0 695 20 24.0 625 31 90 30.0 470 1,500 mb1524d-05eru 24 9.0 - 36.0 727 20 ?.0 ?,500 ?5 86 ?.2 4,800 1,500 mb1524d-12eru 24 9.0 - 36.0 710 15 ?2.0 ?25 ?2 88 ?5.0 800 1,500 mb1524d-15eru 24 9.0 - 36.0 710 15 ?5.0 ?00 ?5 88 ?8.0 500 1,500 mb1548s-03eru 48 18.0 - 75.0 316 35 3.3 4,000 200 87 3.9 10,200 1,000 mb1548s-05eru 48 18.0 - 75.0 351 35 5.0 3,000 150 89 6.2 4,020 1,000 mb1548s-12eru 48 18.0 - 75.0 355 10 12.0 1,250 63 88 15.0 1,035 1,000 mb1548s-15eru 48 18.0 - 75.0 347 10 15.0 1,000 50 90 18.0 705 1,000 mb1548d-05eru 48 18.0 - 75.0 363 20 ?.0 ?,500 ?5 86 ?.2 4,800 1,000 mb1548d-12eru 48 18.0 - 75.0 355 15 ?2.0 ?25 ?2 88 ?5.0 800 1,000 mb1548d-15eru 48 18.0 - 75.0 351 15 ?5.0 ?00 ?5 89 ?8.0 500 1,000 derating curve external trim external trim notes: on single output units, an external resistor can be used to adjust the converter output up/down by about 10%. the connection is shown in the diagram at left. the required resistor value is calculated by the formulas: where r trim = the value of the external trim resistor v trim = the amount of voltage adjustment required the value of r 1 , r 2 , r 3 and v ref are given in the table below. trim down = r trim = r 1 - a a $ r 1 - r 3 where a = v ref v trim - v ref $ r 2 trim up = r trim = r 2 - a a $ r 2 - r 3 where a = v trim - v ref v ref $ r 1 parameter output voltage (vdc) 3.3 5.0 9.0 12 15 24 r 1 (k ) 4.801 2.883 7.500 10.971 14.497 24.872 r 2 (k ) 2.863 2.864 2.864 2.864 2.864 2.864 r 3 (k ) 15.00 10.00 15.00 17.80 17.80 20.00 v ref (v) 1.24 2.50 2.50 2.50 2.50 2.50 if not used, the trim pin (pin 4) should be left open. please 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 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 above illustrates a typical connection of the MB1500ERU 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 at right. 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 right. 4. the output ltering capacitor (c 3 ) 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 illustration below shows a connection for dual output units. voltage derating of capacitors should be 80% or above. 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-02a(w) (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. this can be done discretely, or with t he addition of the mdcfm- 02a(w) . 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-02(w). contact the factory for more information. typical board layout : with external filter/surge components for single output unit 5. recommended values for components are: component 24 v in 48 v in mov s14k35 s14k60 l 1 56 h 56 h tvs smcj48a smcj90a c 1 330 f/50v 330 f/100v c 2 1.0 f/50v 1.0 f/100v l 2 4.7 h 4.7 h c y1, c y2 1,000 pf/2 kv 1,000 pf/2 kv 6. input noise and surge suppression modules are available for a number of mpd dc/dc power supplies. for pricing or full techni- cal information on these modules please contact the factory. typical connection : with external filter/surge components for dual output unit vin (vdc) input capacitor vout (vdc) output capacitor 24 330 f 3.3 470 f 5.0 470 f 48 330 f 12 220 f 15 220 f 24 100 f ? 220 f ?2 100 f ?5 100 f 7. in many applications simply adding input/output capacitors will enhance the input surge pro- tection and reduce output ripple suf ciently. the input capacitor c 1 and output cap- acitors c 3 and c 4 shown in the typical connection diagram above (and board layout drawings below) illustrate their connection. recommended capacitor values are given in the table at right.
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) mechanical dimensions mechanical dimensions: with optional heatsink pin single output pin dual output 1+v in 1+v in 2-v in 2-v in 3+v out 3+v out 4 trim 4 common 5-v out 5-v out 6 remote on/off 6 remote on/off pin con nec tions for the heatsink option, add suf x ??to the model number (i.e. mb1524s-05eru-h) adapter plate all models of the mb1500x-xxeru series are available mounted on an adapter plate similar to the one pictured at left. the adapter plate makes it easier to mount the unit to a chassis or to a standard din rail. please contact the factory for more information.
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