SMRT283R3SSLASHKR datasheet(19/44 Pages) INTERPOINT

19 / 44 page

NotesfortripleoutputmodelsonTable14throughTable18.

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:

Condition1:+POUT=20-80%,/-POUT=80-20%

Condition2:-POUT=20-80%,/+POUT=80-20%

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

currentismuchless,thelimitinthecharacteristictableisbasedonmeasurementresolution.

7.Efficiencymeasuredwithalloutputsatfullload.

8.Maximumpowerdissipationwhenalloutputsareshortedsimultaneously.

9.RecoverytimeismeasuredfromapplicationofthetransienttopointatwhichVOUTiswithin1%ofVOUTatfinalvalue

10.Transitiontime>10µs.

11.Halfloadto/fromfullload.

12.TheStepLoadspecificationforthenegativeauxiliaryoutputisguaranteedbyqualificationtest.Itisnotanin-linetest.

13.Measuredfromreleaseofinhibitorinputvoltagestep.

14.Appliestoeachauxiliary.

electrIcal characterIStIcS: -55°c tO +125°c caSe, 28 VIn, 100% lOad, Free run, unleSS OtherwISe SpecIFIed.

Crane Aerospace & Electronics Power Solutions

www.craneae.com/interpoint

Page19of44

sMrt single, dual and triple space dc-dc converters

19-56 Volt input – 35 Watt – space qualiFied

SMRT28RevAJ-2016.05.03

SMRT283R3S/KR Datasheet(PDF) 19 Page - Interpoint Corporation Company