key features: ? 1w output power ? 2:1 input voltage range ? short circuit protected ? 1,500 vdc isolation ? 29 standard models ? miniature sip case ? -40c to +85c operation ? industry standard pin-out ? low cost MD100ERW 2:1 input, 1w sip, single & dual output dc/dc con vert ers input parameter conditions min. typ. max. units input voltage range 5 vdc input 4.5 5.0 9.0 vdc 12 vdc input 9.0 12.0 18.0 24 vdc input 18.0 24.0 36.0 48 vdc input 36.0 48.0 75.0 input start voltage 5 vdc input 3.5 4.0 4.5 vdc 12 vdc input 4.5 8.0 9.0 24 vdc input 11.0 16.0 18.0 48 vdc input 24.0 33.0 36.0 input filter capacitor filter output parameter conditions min. typ. max. units output voltage accuracy, see note 1 i out = 5% to 100% ?.0 ?.0 % output voltage balance, see note 2 dual outputs, balanced loads ?.5 ?.0 % line regulation v in = min to max ?.3 ?.5 % load regulation i out = 5% to 100% ?.4 ?.75 % ripple (20 mhz) see note 3 30 50 mv p - p noise (20 mhz) see note 3 55 75 mv p - p transient recovery time, see note 4 25% load step change 0.5 2.0 msec transient response deviation ?.5 ?.0 % temperature coef cient ?.02 ?.03 %/? output short circuit 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 120 pf switching frequency 200 khz emi characteristics parameter standard level radiated emissions see note 5 en 55022 class b conducted emissions see note 5 en 55022 class b esd en 61000-4-2 criteria b; ? kv contact rs en 61000-4-3 criteria a; 10v/m eft see note 6 en 61000-4-4 criteria b; ? kv see note 6 en 61000-4-4 criteria b; ? kv surge see note 7 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% environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +85 ? storage temperature range -55 +125 ? cooling free air convection humidity rh, non-condensing 95 % physical case size 0.866 x 0.374 x 0.472 inches (22.00 x 9.50 x 12.00 mm) case material non-conductive black plastic (ul94-v0) weight 0.17 oz (4.9g) 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) 5 vdc input -0.7 12.0 vdc 12 vdc input -0.7 25.0 24 vdc input -0.7 50.0 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 series
model selection guide www.micropowerdirect.com notes: 1. at no load, output voltage accuracy is ?.5% typical and ?.0% max. 2. the load on dual output units should not be unbalanced more than ? %. units operated with unbalanced loads greater than ?% may not meet all speci cations. 3. when measuring output ripple & noise, it is recommended that an external capacitor (100 f typ.) be placed from the +v out to the -v out pins for single output units and from each output to common for dual output models. 4. transient recovery is measured to within a 1% error band for a load step change of 25%. 5. with the addition of the dcfm-0x (or a similar discrete lter), all models will meet en 55022 class b. a suggested input circuit is shown in the connection diagram on page 3. contact the factory for more information. 6. to meet the requirements of en 61000-4-4 ( ? kv), external components are needed. the connection diagram on page 3 shows an external input lter that would typically achieve this. with the addition of the dcfm-0x , en 61000-4-4 (? kv) can be achieved. contact the factory for more information. 7. to meet the requirements of en 61000-4-5 ( ? kv), external components are needed. this can be done discretely (as shown in the connection diagram on page 3), or with the addition of the dcfm-0x . contact the factory for more information. 8. 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. 9. 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 md105s-05erw 5 4.5 - 9.0 278 25 5.0 200 10.0 72 30.0 2,200 600 md105s-12erw 5 4.5 - 9.0 263 25 12.0 83 4.0 76 30.0 1,000 600 md105s-15erw 5 4.5 - 9.0 267 25 15.0 67 3.0 75 30.0 680 600 md105d-05erw 5 4.5 - 9.0 274 25 5.0 100 5.0 73 30.0 1,000 600 md105d-12erw 5 4.5 - 9.0 263 25 12.0 42 2.0 76 30.0 470 600 md105d-15erw 5 4.5 - 9.0 267 25 15.0 33 2.0 75 30.0 330 600 md112s-03erw 12 9.0 - 18.0 112 12 3.3 303 15.0 75 40.0 2,700 250 md112s-05erw 12 9.0 - 18.0 108 12 5.0 200 10.0 77 40.0 2,200 250 md112s-12erw 12 9.0 - 18.0 106 12 9.0 111 6.0 79 40.0 1,800 250 md112s-12erw 12 9.0 - 18.0 104 12 12.0 83 4.0 80 40.0 1,000 250 md112s-15erw 12 9.0 - 18.0 104 12 15.0 67 3.0 80 40.0 680 250 md112d-05erw 12 9.0 - 18.0 107 12 5.0 100 5.0 78 40.0 1,000 250 md112d-12erw 12 9.0 - 18.0 103 12 12.0 42 2.0 81 40.0 470 250 md112d-15erw 12 9.0 - 18.0 104 12 15.0 33 2.0 80 40.0 330 250 md124s-03erw 24 18.0 - 36.0 56 6 3.3 303 15.0 75 55.0 2,700 125 md124s-05erw 24 18.0 - 36.0 54 6 5.0 200 10.0 77 55.0 2,200 125 md124s-12erw 24 18.0 - 36.0 51 6 12.0 83 4.0 81 55.0 1,000 125 md124s-15erw 24 18.0 - 36.0 53 6 15.0 67 3.0 79 55.0 680 125 md124s-24erw 24 18.0 - 36.0 54 6 24.0 42 2.0 77 55.0 470 125 md124d-05erw 24 18.0 - 36.0 52 6 5.0 100 5.0 80 55.0 1,000 125 md124d-12erw 24 18.0 - 36.0 52 6 12.0 42 2.0 80 55.0 470 125 md124d-15erw 24 18.0 - 36.0 52 6 15.0 33 2.0 80 55.0 330 125 md148s-03erw 48 36.0 - 75.0 28 4 3.3 758 38 75 70.0 2,700 75 md148s-05erw 48 36.0 - 75.0 27 4 5.0 200 10.0 76 70.0 2,200 75 md148s-12erw 48 36.0 - 75.0 26 4 12.0 83 4.0 81 70.0 1,000 75 md148s-15erw 48 36.0 - 75.0 26 4 15.0 67 3.0 80 70.0 680 75 md148d-05erw 48 36.0 - 75.0 27 4 5.0 100 5.0 76 70.0 1,000 75 md148d-12erw 48 36.0 - 75.0 26 4 12.0 42 2.0 80 70.0 470 75 md148d-15erw 48 36.0 - 75.0 26 4 15.0 33 2.0 80 70.0 330 75 remote on/off control derating curve 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com the md100x-erw may be started or shutdown by the control pin input (pin 3). this input is current controlled. the unit operates when this input is open. when the input is ?igh (current is owing into the pin), the converter shuts down. the input current to this pin should be kept between 5 ma to 10 ma. exceeding 20 ma on this input or connecting it directly to ground could damage the converter. the diagram at right gives a suggested input circuit for the control pin. the diode (d 1 ) is an rb160m-60/1a and c d is is a 47 nf/100v. the resistor r1 is determined by the formula: r = [(v c -v d -1.0)/i c ]-300 where: v c = voltage to ground from pin 3 v d = the forward conduction voltage drop of d 1 i c = the control pin current (5 - 10 ma)
www.micropowerdirect.com typical connection for applications that require meeting emc standards, the diagram above illustrates a typical connection of the md100xerw series. the units do not require external components to operate as speci ed. some notes on this diagram (starting with the input circuit) are: 1. an external fuse should be used in all power module applications. the recommended fuse is shown in the model chart on page 2. 2. to protect against a surge, an external mov is recommended on the input. a suggested value is given in the table at right. 3. to protect against voltage spikes, it is recommended that a tvs be used on the input. a suggested value is given in the table at right. 4. the capacitor c s is required to meet all speci cations on single output units. 5. the output ltering capacitor (c 4 ) 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. typical board layout : with external filter/surge components for single output unit 6. recommended values for components are: component 5 v in 12 v in 24 v in 48 v in mov --- --- s14k35 s14k60 ldm 1 --- --- 56 h 56 h tvs smcj13a smcj28a smcj48a smcj90a c 1 680 f/16v 680 f/25v 330 f/50v 330 f/100v c 2 4.7 f/50v 4.7 f/50v 4.7 f/100v 4.7 f/100v ldm 2 12 h 12 h 12 h 12 h c 3 4.7 f/50v 4.7 f/50v 4.7 f/50v 4.7 f/100v cy 1nf/2 kv 1nf/2 kv 1nf/2 kv 1nf/2 kv c s 10 f - 22 f c 4 100 f 100 f 100 f 100 f 7. the drawings below show typical board layouts for the emc/ emi circuit shown above (one for single output models and one for dual output units). 8. in many applications simply adding input/output capacitors will enhance the input surge protection and reduce output ripple suf ciently. the value of the input capacitor can range from 10 f to 100 f, depending on the needs of the application . the output capacitor would typically be 100 f. 9. the capacitor c s provides additional output ltering. if used, a value of 10 f to 20 f is recommended. this capacitor is not required for speci ed operation. 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/surge components for dual output unit
www.micropowerdirect.com notes: all dimensions are typical in inches (mm) pin section tolerance x.xxx = ?.004 (?.100) general tolerance x.xx = ?.01 (?.25) pin 1 is marked by a ?ot or indentation on the top of the unit no t es: all dimensions are typical in inches (m p in sec tio n tol e r a n ce x.xxx = 0.004 g ene ral t o l era nce x. xx = 0.01 ( 0.2 5 pin 1 is marked by a ?ot or indentation mechanical dimensions pin single output 1-v in 2+v in 3 remote on/off 5 no connection 6+v out 7-v out 8cs pin dual output 1-v in 2+v in 3 remote on/off 5 no connection 6+v out 7 common 8-v out pin con nec tions 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 typical connection : with dcfm-02 surge suppression and filter modules, single output input noise and surge suppression modules are available for a number of mpd dc/dc power supplies. an md100xerw connection with the dcfm-02 (noise suppression) module connected to the input is shown in the diagrams below. the recommended input capacitor (c 1 ) is a 330 f/50v for 5, 12, and 24 vdc input models and 330 f/100v for 48 vdc input units. the output ca pacitors (c 2 & c 3 ) are 100 f. for pricing or full technical information on these modules ( dcfm-01, d cfm-02 and dcfm-03) please contact the factory. typical connection : with dcfm-02 surge suppression and filter modules, dual output
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