Datasheet

OverVoltageProtection
OverTemperatureProtection
LEDIndicator
Theconvertershutsofftoprotectitselfwhentheoutputvoltagedrawnexceeds115~135%ofitsoutputrating.Itmustberepoweredontorecover.
Theconvertershutsofftoprotectitselfwhenthebuilt-intemperaturesensormountedonthemainpowertransformersensesahightemperature. Theoutputrecovers
Equippedwithabuilt-inLEDindicator,theconverterprovidesaneasywayforuserstocheckitsconditionthroughtheLEDindicator.
Green:normaloperation;Nosignal:nopowerorfailure.
automaticallyifthetemperaturedropsbelowthelimit.
2.Increasetheoutputvoltage(currentdoesnotchange).BecauseRSD-200serieshavenoreverseblockingdiodeintheunit,youshouldaddanexternalblockingdiode
topreventthedamageofeveryunitwhilestartingup. ThevoltageratingoftheexternaldiodeshouldbelargerthanV1+V2(asshownasbelow).
-
I/P
+
I/P
PS2
2
V
I/P
-
E
IN
PS1
I/P
1
+
V
-V
D
2
V1+V2
L
R
1
D
+V
OverloadProtection
Iftheoutputdrawupto105~135%ofitsoutputpowerrating,theconverterwillgointooverloadprotectionwhichisconstantcurrentmode. Afterthefaultycondition
isremoved,itwillrecoverautomatically.Pleaserefertothediagrambelowforthedetailoperationcharacteristic.Pleasenotethatit'snotsuitabletooperatewithin
theoverloadregioncontinuously,oritmaycausetoovertemperatureandreducethelifeofthepowersupplyunitorevendamageit.
0 50 100 150
50
100
Vo(%)
Io(%)
DeratingCurve
AMBIENTTEMPERATURE( ) ¢J
LOAD(%)
100
100
20
40
60
80
-40 20 30 40 50 55 60 70
(HORIZONTAL)
Overload
region
200WRailwaySingleOutputDC-DCConverter
RSD-200 se ri es
FileName:RSD-200-SPEC 2013-01-21
a.Singleunitoperation
de-ratingoutputcurrentwhenambienttemperatureisbetween55-70 ,pleaserefertothede-ratingcurveasbelow. ¢J
Iftheunithasnoironplatemountedonitsbottom,themaximumambienttemperaturefortheunitwillbe55 asoperatingunderfullloadcondition.Itrequires ¢J