50 Watt Single Output Half Brick DC/DC Converter
VKA50xSC
RoHSCompliant
18-36V&33-75VInputRange
HighEfficiency:87%Typicalat
5V
100
mSTransientResponse50-
100%LoadStep
420kHzFixed-Frequency
Operation
RemoteSense
Operationto+100
°CBaseplate
Temperature
PrimaryRemoteOn/Off,Choiceof
Pos/NegLogic
AdjustableOutputVoltage
ContinuoutShort-CircuitProtection
ThermalShutdown
CaseGroundPin
Corporate: www.cdtechno.com
Product: www.cd4power.com
TheVKA50xSCSeriesDC/DC
converterspresentaneconomicaland
practicalsolutionfordistributedpower
systemarchitectureswhichrequire
highpowerdensityandefficiency
whilemaintainingsystemmodularity
andupgradeability.Withtheabilityto
operateoverawideinputvoltagerange
of18to36and33to75volts,these
modulesareidealforuseinbattery
backupapplicationscommonintodays’
telecommunicationandelectronicdata
processingapplications.Theoutputis
fullyisolatedfromtheinput,allowing
foravarietyofpolarityandgrounding
configurations.
TheVKA50xSC’sproprietary
controlcircuitryrespondsto50-100%
loadstepsin100
mSecondstowithin1%
nominalVout.
Thepatentedfixedfrequency
architecturecombinedwithsurface
mounttechnologyresultsinacom-
pact,efficientandreliablesolutionto
DC/DCconversionrequirements.Safety
perUL1950,EN60950andCSA22.2
#234.
MODEL
INPUT
VOUT
IOUT
EFFICIENCY
VOLTAGE
(VDC)
(A)
MIN
TYP
VKA50LS03C
3.3V
10.0
80
81
VKA50LS05C
24VDC
5.0V
10.0
85
86
VKA50LS12C
12.0V
4.2
87
88
VKA50LS15C
(18-36)
15.0V
3.3
88
89
VKA50LS24C
24.0V
2.1
89
90
VKA50MS03C
3.3V
10.0
81
82
VKA50MS05C
48VDC
5.0V
10.0
86
87
VKA50MS12C
12.0V
4.2
88
89
VKA50MS15C
(33-75)
15.0V
3.3
89
90
VKA50MS24C
24.0V
2.1
89
90
PRODUCT SELECTION CHART
ISO9001
CERTIFIED
Product: www.cd4power.com
VKA50xSC (Rev A: RoHS) 05/2006
These devices are intended for wave soldering or manual soldering.
They are not intended to be subject to surface mount processes under any circumstances.
The normal wave soldering process can be used with these devices where the device is subjected to a maximum wave temperature of 260°C for a period of
no more than 10 seconds. Within this time and temperature range, the integrity of the device’s plastic body will not be compromised and internal temperatures
within the converter will not exceed 175°C. Care should be taken to control manual soldering limits identical to that of wave soldering.
THROUGH-HOLE SOLDERING INFORMATION