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 key features: ? 20w output power ? 40 -160 vdc input range ? 1,500 vdc isolation ? ef? ciency to 89% ? compact 1 x 2 inch case ? -40c to +85c operation ? industry standard pin-out ? chassis mount option ? din rail mount option MR2011S ultra-wide input, 20w compact, railway dc/dc con vert ers input parameter conditions min. typ. max. units input voltage range 40.0 110.0 160.0 vdc input start voltage 39.8 vdc under voltage shutdown i out = 100% 36.0 vdc 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 = 10% to 100% ?.5 ?.0 % ripple & noise (20 mhz) see note 1 75 100 mv p - p transient recovery time, see note 2 25% load step change 500 800 sec transient response deviation ?.0 ?.0 % output power protection 110 130 170 % temperature coef cient ?.02 %/? output short circuit, see note 3 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 300 khz environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +85 ? 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 4 2.5 12.0 vdc unit off see note 4 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, 5 - 150 hz displacement range 7.5 mm acceleration 2g absolute maximum ratings parameter conditions min. typ. max. units input voltage surge (1 sec) 24 vdc input -0.7 200.0 vdc 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. series
292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com www.micropowerdirect.com w ww.m i cro p ower di rect.co m www.micropowerdirect.com model selection guide notes: 1. when measuring output ripple, it is recommended that an external ceramic capacitor (approx 10 ?) be placed from the +v out to the -v out pins. 2. transient recovery is measured to within a 1% error band for a load step change of 25%. 3. short circuit protection is provided by a ?iccup mode circuit. 4. the maximum control current at the on/off pin (pin 6) during a logic high is 50 a. the maximum control current to the on/off pin at logic low (-0.7v to 0.8v) is 1 ma. if the on/off pin is left open, the unit operates. if it is grounded, the unit will shut off. 5. 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. 6. these units should not be operated over +85?. exceeding +85? may damage the unit. 7. 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 MR2011S-05ru 110 40 - 160 204 15 5.0 4,000 200 89 6.2 4,020 400 MR2011S-12ru 110 40 - 160 206 8 12.0 1,667 83 88 15.0 1,600 400 MR2011S-15ru 110 40 - 160 206 8 15.0 1,333 67 88 18.0 1,000 400 MR2011S-24ru 110 40 - 160 206 8 24.0 833 42 88 28.8 470 400 derating curve external trim parameter output voltage (vdc) 5.0 12 15 24 r 1 (k ) 2.883 10.971 14.497 24.872 r 2 (k ) 2.864 2.864 2.864 2.864 r 3 (k ) 10.00 17.80 17.80 20.00 v ref (v) 2.50 2.50 2.50 2.50 external trim notes: 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 if not use d ef? ciency vs input voltage (full load) ef? ciency vs output power (v in = 110 vdc)
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 w ww.m i cropower di rect.com www.micropowerdirect.com emc speci? cations parameter standard criteria speci? cation transient input voltage see note 1 ria 12 a 385v/20 ms maximum input voltage see note 1 en 50155 b 1,800v (5/50 s, 50 or 100 b 8,400v (0.05/0.1 s, 100 radiated emissions see note 2 en 55022 class b conducted emissions see note 2 en 55022 class b esd en 61000-4-2 b ? kv contact rs en 61000-4-3 a 10v/m eft see note 3 en 61000-4-4 b ? kv surge see note 4 en 61000-4-5 b ? kv/? kv cs en 61000-4-6 a 3 vrms voltage dips en 61000-4-29 b 0% - 70% typical connection the diagram above illustrates a typical connection of the MR2011S series. the mdcfm-40u lter module is used to make the circuit compliant with input surge and emc standards en 55022, en 61000 and en 50155. this can also be accomplished by using external lter components as shown in the board layout drawing below. some notes on these components 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. voltage derating of capacitors should be 80% or above. notes: 1. with a pulse interval that is >60s. requires the addition of the lter module mdcfm-40u (or a similar discrete circuit) as shown in the circuit/board layout diagrams below. contact the factory for more information. 2. all units will meet class b with the addition of the lter module mdcfm-40u (or a similar discrete circuit) as shown in the circuit/board layout diagrams below. contact the factory for more information. 3. 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-40u. contact the factory for more information. 4. to meet the requirements of en 61000-4-5 ( ? kv/ ? kv ), external components are needed. this can be done discretely, or with the addition of the mdcfm-40u. contact the factory for more information. typical board layout : with external filter/surge components 5. suggested component values are: component value mov s14k35 l 1 56 h tvs smcj170 c 1 100 f/200v c 3 1.0 f/50v l 2 4.7 h c y1, c y2 1,000 pf/2 kv 6. input noise and surge suppression modules are available for a number of mpd dc/dc power supplies. for use with the mrxxs product series, the mdcfm-40u dc lter module is recom- typical board layout : with external filter module vin (vdc) input capacitor vout (vdc) output capacitor 110 100 f 5.0 470 f 12 220 f 15 220 f 24 100 f mended. a typical board layout with this module is shown in the gure below. for pricing or full technical information on these modules please contact the factory. 7. in many applications, simply adding input/out- put capacitors will en- hance the input surge protection & and reduce output ripple suf ciently. in this case, capacitors c 1 and c 3 would be connected as shown, without the other lter components. recom- mended capacitor values are given in the table above.
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. MR2011S-05ru-h) adapter plate all models of the MR2011S-xxru series are available mounted on an adapter plate similar to the one pictured above. 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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