universal input, 20w miniature, pc mount ac/dc power supplies key features: ? 20w output power ? universal 85-264 vac input ? en 60950 approved (ul) ? adjustable output ? meets en 55022 b ? >300 khour mtbf ? compact pc mount case mpm-20s series electrical speci cations speci cations typical @ +25?, 230 vac input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice. 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 www.micropowerdirect.com input parameter conditions min. typ. max. units input voltage range 85 264 vac 120 370 vdc input frequency 47 63 hz input current see model selection guide inrush current 115 vac 16.0 a pk 230 vac 30.0 output parameter conditions min. typ. max. units output voltage see model selection guide output current see model selection guide output voltage accuracy 2.0 % line regulation v in = min to max 0.5 % load regulation see note 2 1.0 % ripple & noise (20 mhz) 50 100 mv p-p hold-up time 115 vac 30 msec 230 vac 80 temperature coef? cient 0.02 %/c short circuit protection continuous (autorecovery) over voltage protection zener diode clamp overload protection autorecovery 110 %w general parameter conditions min. typ. max. units isolation voltage input to output 3,000 vac isolation resistance 500 vdc 100 m? switching frequency 65 khz emi characteristics parameter standard min. typ. max. units radiated emissions en 55022 class b conducted emissions en 55022 class b esd en 61000-4-2 criteria b; 8 kv air/6 kv contact rs en 61000-4-3 criteria a; 10v/m eft see note 4 en 61000-4-4 criteria b; 2 kv surge see note 5 en 61000-4-5 criteria b; 1 kv/2 kv environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +70 c operating temperature range case +95 c storage temperature range -40 +105 c cooling free air convection (see derating curve) humidity rh, non-condensing 95 % physical case size 2.75 x 1.88 x 0.92 inches (70.0 x 48.0 x 23.50 mm) case material non-conductive black plastic (ul94-v0) weight 4.23 oz (120g) reliability speci cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25c, gnd benign 300 khours safety standards en 60950
model selection guide notes: all dimensions are typical in inches (mm) tolerance x.xx = 0.02 ( 0.50) pin function pin function 1 ac-ground 4 -vout 2 ac-neutral 8 +vout 3 ac-line trim trim pin connections model number input output over volt. protection (vdc) ef ciency (%, typ) current (a) voltage (vdc) current (a) 115 vac 230 vac max min mpm-20s-03 0.33 0.18 3.3 4.10 0.0 7.5 73 mpm-20s-05 0.33 0.18 5.0 3.50 0.0 7.5 75 mpm-20s-09 0.33 0.18 9.0 2.10 0.0 12.0 77 mpm-20s-12 0.33 0.18 12.0 1.60 0.0 20.0 81 mpm-20s-15 0.33 0.18 15.0 1.30 0.0 20.0 83 mpm-20s-24 0.33 0.18 24.0 0.85 0.0 30.0 85 derating curve mechanical dimensions 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 typical connection 1. it is recommended that an external fuse and ntc be used. the recommended fuse is a 3.15a/250v slow blow and for the ntc, a 5d-9. 2. an external mov is required on the input to protect the unit in the event of a surge. a 561kd14 or equivalent is recommended. 3. a simple external circuit may be used to adjust the output 10%. to adjust the output down, connect a 5%, 3w resistor between the plus output pin and the v out trim pin. to adjust the output up, connect a 5%, 3w resistor between the minus output pin and the v out trim. contact the factory for resistor values needed to achieve a speci c output. 4. recommended output ltering capacitors are: c 1 c 2 tvs mpm-20s-03 330 f/16v 0.01 f/25v smbj7.0a mpm-20s-05 330 f/16v 0.01 f/25v smbj7.0a mpm-20s-09 220 f/25v 0.01 f/25v smbj12a mpm-20s-12 220 f/25v 0.01 f/25v smbj20a mpm-20s-15 220 f/25v 0.01 f/25v smbj20a mpm-20s-24 220 f/25v 0.01 f/25v smbj30a output capacitor (c 2 ) is a high frequency, low resistance electrolytic capacitor. capacitor (c 1 ) is ceramic. voltage derating of capacitors should be 80% or above. 5. input noise and surge suppression modules are available for a number of mpd ac/dc power supplies. an mpm-20s-xx connection with the acfm-01 is il- lustrated in the diagram at left. for pricing or full technical information on these modules (acfm-01 and acfm-02 ) please contact the factory. notes: 1. operation at no load will not damage the units, however, they may not meet all speci cations. 2. load regulation is measured for an output change of 10% to 100% at nominal input line. 3. all units are rated for en 55022 (ce/re) class b without external components. 4. all units are rated for en 61000-4-4 (? kv) without external components. they will meet en 61000-4-4 (? kv) with additional input ltering as shown below. 5. all units are rated for en 61000-4-5 (? kv/? kv) without external components. they will meet en 61000-4-5 (? kv/? kv) with additional input ltering as shown below. 6. it is recommended that a fuse be used on the input of a power supply for protection. for the mpm-20s series, a 3.15a/250 vac slow blow should be used. input voltage vs load the diagram below illustrates a typical application connection of the mpm-20s-xx series. notes on this circuit (starting with the input circuit) are: typical connection : with acfm-01 input module (see note 5) the mpm-20-xx series is also available with a chassis mount or din mount adapter. contact the factory for more information
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