key features: ? 25w-30w output power ? 4:1 input voltage range ? en 60950 approved (ul) ? 1,500 vdc isolation ? meets en55022 class a ? compact 2 x 1.6 in. case ? single & dual outputs ? remote on/off ? industry standard pin-out f2500ru 4:1 input 25w - 30w single & dual output 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 start voltage 24 vdc input 9.4 9.7 10.0 vdc 48 vdc input 17.0 17.5 18.0 under voltage shutdown 24 vdc input 9.0 9.3 9.5 vdc 48 vdc input 16.0 16.5 17.0 input filter (pi) filter (meets en55022 class ?a?) reverse polarity input current 2.0 a short circuit input power 4,500 mw output parameter conditions min. typ. max. units output voltage accuracy 0.5 1.0 % output voltage balance dual output , balanced loads 0.5 2.0 % line regulation for vin min to max 0.2 0.5 % load regulation iout = 50% to 100% 0.3 1.0 % ripple & noise (20 mhz) see note 1 55 80 mv p - p ripple & noise (20 mhz) over line, load & temp. 100 mv p - p output power protection 120 180 % transient recovery time, see note 2 25% load step change 150 300 sec transient response deviation 2.0 4.0 % temperature coef? cient 0.01 0.02 %/c output short circuit continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage 60 seconds 1,500 vdc isolation voltage test flash tested for 1 second 1,650 vdc isolation resistance 500 vdc 1,000 m isolation capacitance 100 khz, 1v 1,200 1,500 pf switching frequency 290 330 360 khz over temperature protection case temperature 107 112 117 c remote on/off see note 3 parameter conditions min. typ. max. units supply on 2.5 100.0 vdc supply off -1.0 1.0 vdc standby input current 5ma control common referenced to negative input (pin 2) environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +50 c operating temperature range case +105 c storage temperature range -50 +125 c cooling free air convection humidity rh, non-condensing 95 % physical case size 2.0 x 1.6 x 0.37 inches (50.8 x 40.6 x 9.3 mm) case material metal with non-conductive base weight 1.75 oz (48g) reliability speci cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25c, gnd benign 1,000 khours safety standards ul 60950, en 60950 safety approvals ul, cul; file no. e245422 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 260 c internal power dissipation all models 5,500 mw caution: exceeding absolute maximum ratings may damage the module. these are not continuous operating ratings. 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 mechanical notes: all dimensions are typical in inch es (mm) tolerance x.xx = ?.01 (?.25) notes: 1. when measuring output ripple, it is recommended that an external 1.0 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. for noise sensitive applications, the use of 4.7 f capacitors will reduce the output ripple. the maximum rms value of the output ripple is 10 mv. 2. transient recovery is measured to within a 1% error band for a load step change of 75% to 100%. 3. the maximum sink current at the on/off pin (pin 4) during a logic low is 100 a. the maximum allowable leakage current of a switch connected to the on/off pin (pin 4) at logic high (2.5v to 100v) is 5 a. if the on/ off pin (pin 4) is left open, the unit operates. if it is grounded, the unit will shut off. 4. operation at no-load will not damage these units. however, they may not meet all speci cations. 5. dual output units may be connected to provide a 24 vdc or 30 vdc output. to do this, connect the load across the positive (+vout) and negative (-vout) outputs and oat the output common. 6. the converter should be connected to a low ac-impedance source. an input source with a highly inductive impedance may affect the stability of the converter. in applications where the converter output loading is high and input power is supplied over long lines, it may be necessary to use a capacitor on the input to insure start-up. in this case, it is recommended that a low equivalent series resistance (esr <1.0 at 100 khz) capacitor be mounted close to the converter. a 33 f is recommended for 24v input models and a 10 f for 48v units. 7. it is recommended that a fuse be used on the input of a power supply for protection. see the table above for the correct rating. heatsink notes: use of the heatsink will extend the units operating temperature range by approximately 10?. the heatsink is black anodized aluminum. 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 a simple external circuit may be used to adjust the converter output. to adjust the output down, connect a 5%, 3w resistor between the plus output pin and the vout trim pin. to adjust the output up, connect a 5%, 3w resistor between the minus output pin and the vout trim pin. to calculate the correct resistor value use: up radj = (33 x vout) - (30 x vadj) vadj - vout down radj = (36.667 x vout) - (33 x vout) vout - vadj for up/down trimming capability, connect a 10 kw potentiometer between the plus and minus outputs with the wiper arm connected to the vout trim pin. pin single dual pin single dual 1 +vin +vin 6 +vout comm. 2 -vin -vin 7 -vout -vout 4 on/off on/off 8 trim trim 5 no pin +vout pin connections model number input output over voltage protection (vdc) ef ciency (%, typ) capacitive load (? max) fuse rating slow-blow (ma) voltage (vdc) current (ma) voltage (vdc) current (ma, max) current (ma, min) nominal range full-load no-load f2501ru 24 10.0 - 40.0 922 20 3.3 5,500 400.0 3.9 82 1,000 5,000 f2502ru 24 10.0 - 40.0 1,225 20 5.0 5,000 350.0 6.8 85 1,000 5,000 f2503ru 24 10.0 - 40.0 1,404 20 12.0 2,500 166.0 15.0 89 1,000 5,000 f2504ru 24 10.0 - 40.0 1,404 20 15.0 2,000 133.0 18.0 89 1,000 5,000 f2505ru 24 10.0 - 40.0 1,404 20 12.0 1,250 83.0 15.0 89 330 5,000 f2506ru 24 10.0 - 40.0 1,404 20 15.0 1,000 65.0 18.0 89 330 5,000 f2511ru 48 18.0 - 75.0 461 10 3.3 5,500 400.0 3.9 82 1,000 3,000 f2512ru 48 18.0 - 75.0 613 10 5.0 5,000 350.0 6.8 85 1,000 3,000 f2513ru 48 18.0 - 75.0 702 10 12.0 2,500 166.0 15.0 89 1,000 3,000 f2514ru 48 18.0 - 75.0 702 10 15.0 2,000 133.0 18.0 89 1,000 3,000 f2515ru 48 18.0 - 75.0 702 10 12.0 1,250 83.0 15.0 89 330 3,000 f2516ru 48 18.0 - 75.0 702 10 15.0 1,000 65.0 18.0 89 330 3,000 mechanical dimensions external trim derating curves heatsink dimensions (optional) for heatsink option, add suf? x ?h? to model number (i.e. f2503ru-h) www.micropowerdirect.com
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