NotesfortripleoutputmodelsonTable22throughTable26.

1.Guaranteedbycharacterizationtestand/oranalysis.Notaproductiontest.

2.Uptothemaximumspecifiedauxiliaryoutputcurrent/powerisavailablefromeitherauxiliaryoutputprovidedthetotalauxiliaryoutputcurrent

powerdoesnotexceedthetotalcurrent/powerspecified.

3.Lineregulationistestedatfullload.However,tomaintainregulationabove28voltsinput,aminimumloadisrequiredof0%at28voltsinput

increasinglinearlyto5%at56voltsin.Loadpercentageappliestothemainoutputandalsotothesumoftheauxiliaries.

4.Tomaintainthecrossregulationspecification,oneoftheauxiliariesmustalwaysprovideaminimumof20%ofthetotalauxiliarypowerused.

NegativeVoutcrossregulationisreferencedto50%/50%balancedloads(at100%oftotalratedoutputpower-fullload).

5.Crossregulationismeasuredunderthefollowingconditions:

6.ConvertersmeetMIL-STD-461specificationrevisionsforconductedemissionsC-CE03andD-/E-/F-CE-102.Theactualvalueofinputripple

currentismuchless,thelimitinthecharacteristictableisbasedonmeasurementresolution.

7.Efficiencymeasuredwithalloutputsatfullload.

8.Maximumpowerdissipationwhenalloutputsareshortedsimultaneously.

10.Transitiontime>10µs.

11.Halfloadto/fromfullload.

12.TheStepLoadspecificationforthenegativeauxiliaryoutputisguaranteedbyqualificationtest.Itisnotanin-linetest.

13.Measuredfromreleaseofinhibitorinputvoltagestep.

14.Appliestoeachauxiliary.

ElectricalCharacteristics:-55°Cto+125°Ccase,50Vin,100%load,freerun,unlessotherwisespecified.

Crane Aerospace & Electronics Power Solutions

www.craneae.com/interpoint

Page28of44

sMrt single, dual and triple space dc-dc converters

50 Volt input speciFications

SMRT28RevAJ-2016.05.03