key features: ? 1.5w output power ? 4:1 input voltage range ? 1,500 vdc isolation ? -40oc to +85oc temp range ? compact dip case ? single & dual outputs ? 1.0 mh mtbf ? industry standard pin-out ? low, low cost! a100eru single & dual output, 1.5w ultra-wide input range dc/dc con vert ers series electrical speci cations speci cations typical @ +25?, nominal input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice. input parameter conditions min. typ. max. units input voltage range, see note 1 24 vdc input 9.0 24.0 36.0 vdc 48 vdc input 18.0 48.0 72.0 input filter capacitors short circuit input power 1,000 mw output parameter conditions min. typ. max. units output voltage accuracy 1.0 3.0 % output voltage balance dual output , balanced loads 3.0 % line regulation vin = min to max 0.2 0.75 % load regulation iout = 10% to 100% 0.5 2.0 % noise (20 hz - 300 khz) see note 2 50 100 mv p - p ripple (dc - 20 mhz) 50 mv p - p output power protection 120 % temperature coef? cient 0.03 %/oc 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 pf switching frequency 550 khz environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +85 oc storage temperature range -50 +125 oc cooling free air convection humidity rh, non-condensing 95 % physical case size, see note 3 1.25 x 0.80 x 0.37 inches (31.8 x 20.3 x 9.5 mm) case material, see note 3 non-conductive black plastic (ul94v-0) weight 0.52 oz (15g) reliability speci cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25oc, 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 oc internal power dissipation all models 1,500 mw caution: exceeding absolute maximum ratings may damage the module. these are not continuous operating ratings. 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
model selection guide mechanical dimensions mechanical notes: all dimensions are typical in inch es (mm) tolerance x.xx = ?.01 (?.25) 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 derating curve pin single dual 2, 3 -vin -vin 9 no pin common 10 nc nc 11 nc -vout 14 +vout +vout 15 nc nc 16 -vout common 22, 23 +vin +vin nc: no connection pin connections model number input output 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 a101eru 24 9.0 - 36.0 86 20 3.3 500 50.0 73 200 a102eru 24 9.0 - 36.0 83 20 5.0 300 30.0 75 200 a103eru 24 9.0 - 36.0 80 20 9.0 167 17.0 78 200 A104ERU 24 9.0 - 36.0 78 20 12.0 125 12.0 80 200 a105eru 24 9.0 - 36.0 77 20 15.0 100 10.0 81 200 a106eru 24 9.0 - 36.0 85 20 5.0 150 15.0 73 200 a107eru 24 9.0 - 36.0 80 20 12.0 63 6.0 78 200 a108eru 24 9.0 - 36.0 79 20 15.0 50 5.0 79 200 a111eru 48 18.0 - 72.0 43 10 3.3 500 50.0 72 150 a112eru 48 18.0 - 72.0 42 10 5.0 300 30.0 74 150 a113eru 48 18.0 - 72.0 40 10 5.0 167 17.0 77 150 a114eru 48 18.0 - 72.0 39 10 12.0 125 12.0 79 150 a115eru 48 18.0 - 72.0 39 10 15.0 100 10.0 80 150 a116eru 48 18.0 - 72.0 43 10 5.0 150 15.0 72 150 a117eru 48 18.0 - 72.0 40 10 12.0 63 6.0 77 150 a118eru 48 18.0 - 72.0 40 10 15.0 50 5.0 78 150 notes: 1. exceeding the input range by a signi cant margin may damage the units. for 24v input the input voltage should not exceed 40v; for 48v models it should not exceed 80v. 2. when measuring output ripple, it is recommended that an external 0.33 f ceramic capacitor be placed from the +vout pin to the -vout pin for single output units and from each output to common for dual output units. 3. the optional metal package is nickel plated steel. dimensions are 1.25 x 0.80 x 0.39 inches (31.8 x 20.3 x 10.0 mm). 4. these units should not be operated with a load under the speci ed minimum. operation at no-load will increase ripple signi cantly and may cause damage to the unit. 5. these converters are speci ed for operation without external components. however, in some applications the addition of input/output capacitors will enhance stability and reduce output ripple. recommended capacitor values are: vin (vdc) input capacitor vout (vdc) output capacitor 0 to +70? (electrolytic) -40 to +85? (tantalum) 24 sing 10 f 3.3 100 f 47 f dual 10 ~ 47 f 5 100 f 47 f 48 sing 10 f 12 100 f 47 f dual 10 ~ 47 f 15 100 f 47 f for applications requiring very low output noise levels, a simple lc lter should be effective. 6. 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. for models with a metal case, add an ?m? to the model number (ie: a115erum)
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