PKJ4000EPIEN/LZT146025R8AEricssonPowerModules,June2007
Characteristics
Conditions
min
typ
max
Unit
VI
Inputvoltagerange
36
75
Vdc
VIoff
Turn-offinputvoltage
Rampingfromhigher
voltage
32
Vdc
VIon
Turn-oninputvoltage
Rampingfromlower
voltage
34
Vdc
CI
Inputcapacitance
2
F
IIac
Reflectedripplecurrent
5Hzto20MHz
TBD
mAp-p
PII
Inputidlingpower
Io=0,VI=53V
2
W
PRC
Inputstandbypower
(turnedoffwithRC)
VI=53V,RCactivated
0.25
W
Characteristics
min
max
Unit
TPcb
MaximumOperatingPcbTemperature
-40
+125
C
TS
Storagetemperature
-55
+125
C
VI
Inputvoltage
-0.5
+80
Vdc
VISO
Isolationvoltage(inputtooutputtestvoltage)
1500
Vdc
Vtr
Inputvoltagetransientfor100ms
100
Vdc
VRC
Negativelogic
75
Vdc
VRC
Positivelogic
6
Vdc
Vadj
Maximuminput
-0.5
2xVoi
Vdc
Input TPcb<TPcbmaxunlessotherwisespecified
Note:
StressinexcessofAbsoluteMaximumRatingsmaycausepermanentdamage.AbsoluteMaximumRatings,sometimesreferredtoas
nodestructionlimits,arenormallytestedwithoneparameteratatimeexceedingthelimitsofOutputdataorElectricalCharacteristics.If
exposedtostressabovetheselimits,functionandperformancemaydegradeinanunspecifiedmanner.
Absolute Maximum Ratings
Characteristics
RandomVibration
IEC68-2-34Ed
Frequency
Spectraldensity
Duration
10...500Hz
0.07g2/Hz
10mineachdirection
Sinusoidal
Vibration
IEC68-2-6Fc
Frequency
Amplitude
Acceleration
Numberofcycles
10...500Hz
0.75mm
10g
10ineachaxis
Shock
(halfsinus)
IEC68-2-27Ea
Peakacceleration
Duration
100g
6ms
Temperature
change
IEC68-2-14Na
Temperature
Numberofcycles
-40 ... +100 C
300
Heat/Humidity
IEC68-2-3Ca
Temperature
Humidity
Duration
+85 C
85%RH
1000hours
Solderheat
stability
IEC68-2-201A
Temperature,solder
Duration
260 C
10...13s
Resistanceto
cleaningsolvents
IEC68-2-45XA
Method2
Water
Isopropylalcohol
Glycolether
+55 ±5 C
+35 ±5 C
Cold(inoperation)
IEC68-2-1Ad
Temperature
Duration
-45 C
2h
Storagetest
IEC68-2-2Ba
Temperature
Duration
+125 C
1000h
Environmental Characteristics
Safety
ThePKJ4000EseriesDC/DC
convertersaredesignedinaccordance
withsafetystandardsIEC/EN/UL60
950,Safety of Information Technology
Equipment.ThePKJ4000Eseries
DC/DCconvertersareUL60950
recognizedandcertifiedinaccordance
withEN60950.
TheDC/DCconvertershouldbe
installedintheend-useequipment,
inaccordancewiththerequirements
oftheultimateapplication.Theinput
sourcemustbeisolatedbyminimum
Basicinsulationfromtheprimarycircuit
inaccordancewithIEC/EN/UL60
950.IftheinputvoltagetotheDC/DC
converteris75Vdcorless,thenthe
outputremainsSELV(SafetyExtraLow
Voltage)undernormalandabnormal
operatingconditions.Singlefaulttesting
intheinputpowersupplycircuitshould
beperformedwiththeDC/DCconverter
connectedtodemonstratethatthe
inputvoltagedoesnotexceed75Vdc.
Iftheinputpowersourcecircuitisa
DCpowersystem,thesourcemaybe
treatedasaTNV2circuitandtesting
hasdemonstratedcompliancewith
SELVlimitsandisolationrequirements
equivalenttoBasicinsulationin
accordancewithIEC/EN/UL60950.
Itisrecommendedthatafastblowfuse
witharatingof10Abeusedattheinput
ofeachDC/DCconverter.ThePKJse-
riesDC/DCconvertersareapprovedfor
amaximumfuseratingof15A.Ifafault
occursintheconverterthatimposes
ashortcircuitontheinputsource,this
fusewillprovidethefollowingfunctions:
IsolatethefaultyDC/DCconverter
fromtheinputpowersourcenotto
affecttheoperationofotherpartsof
thesystem.
Protectthedistributionwiringfrom
excessivecurrentandpowerloss
thuspreventinghazardousoverhea-
ting.
The galvanic isolation is verified in an
electric strength test. The test voltage
(VISO)betweeninputandoutputis1500
Vdcfor60seconds.Leakagecurrentis
lessthan1uAatnominalinputvoltage.
Theflammabilityratingforall
constructionpartsoftheDC/DC
convertermeetsUL94V-0.