4
Product: www.cd4power.com
VKA50xSC (Rev A: RoHS) 05/2006
1.000
[25.40]
1.400
[35.56]
2.000
[50.80]
0.19 [4.8]
0.20 [5.1]
0.50 [12.7]
0.40 [10.16]
0.530 MAX
[13.46]
0.20 [5.1]
.040 [1.02] DIA.
7 PLACES
.081 [2.06] DIA.
2 PLACES
1.400
[35.56]
1.000
[25.40]
0.700
[17.78]
.400 [10.16]
1.900
[48.26]
2.28
[57.91]
MAX
MOUNTING INSERTS M3 X 0.5 ThRU, 4 PLACES
MAX. TORQUE, 8 IN/LBS
2.40
[61.0]
MAX
Power Electronics Division, Americas
3400 E Britannia Drive, Tucson, Arizona 85706
Tel: 800.547.2537 Fax: 520.295.4197
MECHANICAL
Anydata,prices,descriptionsorspecificationspresentedhereinaresubjecttorevisionbyC&DTechnologies,Inc.withoutnotice.Whilesuchinformationisbelievedtobe
accurateasindicatedherein,C&DTechnologies,Inc.makesnowarrantyandherebydisclaimsallwarranties,expressorimplied,withregardtotheaccuracyorcomplete-
nessofsuchinformation.Further,becausetheproduct(s)featuredhereinmaybeusedunderconditionsbeyonditscontrol,C&DTechnologies,Inc.herebydisclaimsall
warranties,eitherexpressorimplied,concerningthefitnessorsuitabilityofsuchproduct(s)foranyparticularuseorinanyspecificapplicationorarisingfromanycourseof
dealingorusageoftrade.Theuserissolelyresponsiblefordeterminingthesuitabilityoftheproduct(s)featuredhereinforuser’sintendedpurposeandinuser’sspecific
application.C&DTechnologies,Inc.doesnotwarrantorrecommendthatanyofitsproductsbeusedinanylifesupportoraviationoraerospaceapplications.
Specialattentionshouldbegiventothepeakvoltage
deviationduringadynamicloadstepwhentrimming
theoutputabovetheoriginalsetpointtoavoid
trippingtheovervoltageprotectioncircuit.Shouldan
OVPconditionoccur,theconverterwillgointoalatch
conditionandmustbeexternallyresetbeforeitwill
returntonormaloperation.
Thisfeatureallowstheusertoaccuratelyadjustthemodule’s
outputvoltagesetpointtoaspecifiedlevel.Thisisachieved
byconnectingaresistororpotentiometerfromtheTRIM
terminaltoeitherthe+Voutterminal(forincreasedVout)or
the-Voutterminal(fordecreasedVout).Theformulaebelow
describethetrimresistorvaluetoobtainaVoutchangeof
D%.VOisoutputvoltagepriortoadjustment(3.3V,5V,12V,
15V,or24V).
Radj-up=
(
Vo(100+
D%)_(100+2D%))kW
1.225
D%
Radj-down=
(100-2)kW
D%
NOTES:
All dimensions are in inches (millimeters).
PINPLACEMENTTOLERANCE:±0.005”
MECHANICALTOLERANCE:±0.015”
Marked with: specific modeL ordered, date code, job
code.
MATERIAL:Unitsareencapsulatedinalowthermalresistance
molding compound which has excellent chemical resistance
and electrical properties in high humidity environments and
over a wide operating temperature range. The encapsulant
andoutershelloftheunithaveUL94V-0ratings.Leadmaterial
is solder plated to allow ease of solderability.
OUTPUT ADJUST VOLTAGE
OVP NOTE
VKA50xSC