(888) ipd-converters (888) 473-2668 www.ipdconverters.com c-20 55 60 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 90 100 load % efficiency % eff. obs017ze eff. obs025zg eff. obs025zh efficiency vs. load (48v input) 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 90 100 load % efficiency % eff. obs025yg eff. obs025yh eff. obs025yj efficiency vs. load (24v input) ? trim and enable pins fixed frequency 1500v isolation 6-sided shielding description features obs series - 25 watt obs single output dc/dc converters provide up to 25 watts of output power in an industry standard package and footprint. the obs units feature excellent efficiency, six-sided shielding, and fixed switching frequency. with 100c case operation, the obs converters are especially suited to telecom, networking, and industrial applications. these units are 100% surface-mount construction and fully compatible with production board washing processes. industry standard package 24 and 48v input versions 25w output power 100c baseplate operation general turn-on time: 24 & 48v in 10 ms remote shutdown pos itive remote shutdown reference v in negative switching frequency 400 khz isolation input - output 1500 vdc input - case (24 v in units) 500 vdc output - case (48 v in units) 500 vdc temperature coefficient 0.03%/c case temperature operating range -40 to +100c storage range -40 to +125c humidity max., non-condensing 95% vibration, 3 axes, 5 min each 5 g, 10 - 55 hz mtbf ? (bellcore tr-nwt-000332) 1.8 x 10 6 hrs safety ul, cul, tuv weight (approx.) 1.9 oz technical specifications input voltage range 24 vdc nominal 18 - 36 vdc 48 vdc nominal 34 - 75 vdc reflected ripple 25 ma input reverse voltage protection shunt diode output setpoint accuracy 1% line regulation v in min - v in max., i out rated 0.2% v out load regulation i out min. - i out max., v in nom. 0.5% v out minimum output current 10 % i out rated dynamic regulation, loadstep 25% i out pk deviation 4% v out settling time 500 s voltage trim range 10% i out rated short circuit / overcurrent protection hiccup current limit threshold range, % of i out rated 110 - 140% ovp trip range 115 - 140%v out nom. ovp hiccup notes ? mtbf predictions may vary slightly from model to model. specifications typically at 25c, normal line, and full load, unless otherwise stated. soldering conditions: i/o pins, 260c, ten seconds; fully compatible with commercial wave-soldering equipment. units are water-washable and fully compatible with commercial spray or immersion post wave-solder washing equipment.
c-21 mechanical drawing thermal impedance natural convection 10.3 c/w 100 lfm 7.7 c/w 200 lfm 6.3 c/w 300 lfm 5.1 c/w 400 lfm 4.0 c/w tolerances note: thermal impedance data is dependent on many environmental factors. the exact thermal performance should be validated for specific application. pin function 1+v in 2-v in 3 no conn. 4 enable 5no pin 6+v out 7-v out 8 trim inches: (millimeters) .xx 0.020 .x 0.5 .xxx 0.010 .xx 0.25 pin: 0.002 0.05 case: + 0.04, - 0.00 + 1.0, - 0.00 (dimensions as listed unless otherwise specified.) obs series - 25 watt models - (see the last page of this file for options.) vin (volts) vin range (volts) iin max.* (amps) vout (volts) iout rated (amps) ripple & noise pk-pk (mv) efficiency typ. ** model 24 24 24 24 48 48 48 48 18 - 36 18 - 36 18 - 36 18 - 36 34 - 75 34 - 75 34 - 75 34 - 75 1.15 1.95 1.90 1.90 0.60 0.94 0.92 0.92 3.3 5 12 15 3.3 5 12 15 5.0 5.0 2.1 1.7 5.0 5.0 2.1 1.7 75 75 120 150 75 75 120 150 80% 84% 88% 87% 81% 83% 88% 88% obs017ye ? obs025yg ? obs025yh obs025yj obs017ze obs025zg obs025zh obs025zj ? ? denotes advanced product release. consult factory for product availability. * maximum input current at minimum input voltage, maximum rated output power. ** at nominal vin, rated output. 0 -0.100"(-2.5mm) 0.300"(7.6mm) 0.700"(17.8mm) 1.100"(27.9mm) 0 0.200"(5.1mm) 0.400"(10.2mm) 0.600"(15.2mm) -0.50"(-12.7mm) 5 6 7 4 3 2 8 1 (50.8mm) 2.00" (50.8mm) 2.00" (1.0mm) dia 0.040" (10.7mm) 0.42" (4.6mm) 0.18" min. bottom view (-2.5mm) -0.10" (45.7mm) 1.800"
c105 options when ordering equipment options, use the following suffix information. select the option(s) that you prefer and add them to the model number. example ordering options are located below the options table. option suffix applicable series remarks negative logic n has, hbd, hbs, hes, les, qbs, qes, tes, tqd ttl ?low? turns module on ttl ?high? turns module off lucent compatible trim t has, hbd, hbs, hes, qbs, qes t e r m i nal s t r i p t s x w s , xwd, xwt trim 1 ias, les enable 2 iad, ias, les, sms trim and enable 3 ias, les current share 4 sms headerless y encapsulated ews, iws, ows pin length and heatsink options standard pin length is 0.180? (4.6mm) 0.110? (2.8mm) pin length 8 all units (except sms) 0.150? (3.8mm) pin length 9 all units (except sms) 0.24? (6.1mm) horizontal heatsink 1h all units (except dip, sip, and sm packages) includes thermal pad 0.24? (6.1mm) vertical heatsink 1v all units (except dip, sip, and sm packages) includes thermal pad 0.45? (11.4mm) horizontal heatsink 2h all units (except dip, sip, and sm packages) includes thermal pad 0.45? (11.4mm) vertical heatsink 2v all units (except dip, sip, and sm packages) includes thermal pad 0.95? (24.1mm) horizontal heatsink 3h all units (except dip, sip, and sm packages) includes thermal pad 0.95? (24.1mm) vertical heatsink 3v all units (except dip, sip, and sm packages) includes thermal pad example options:hbs050zg-ant3v = hbs050zg-a with negative logic, lucent compatible trim, and 0.95? vertical heatsink. les015yj-3n = les015yj with optional trim and enable, negative logic. qbs066zg-at8 = qbs066zg-a with lucent compatible trim and 0.110? pin length. nuclear and medical applications power-one products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the president of power-one, inc. technical revisions the appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. specifications are subject to change without notice.
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