P r o d u c t I n n o v a t i o n F r o m

PA95



PA95U

STAbILITY

ThePA95isstableatgainsof10ormorewithaNPO(COG)compensationcapacitorof4.7pF.Thecompensation

capacitor,Cc,intheexternalconnectionsdiagrammustberatedat1000Vworkingvoltageandmountedcloselyto

pins4and6topreventspuriousoscillation.Acompensationcapacitorlessthan4.7pFisnotrecommended.

EXTERNAL COMPONENTS

ThecompensationcapacitorCcmustberatedforthetotalsupplyvoltage.AnNPO(COG)capacitorrateda1kVis

recommended.

Ofequalimportancearethevoltageratingandvoltagecoefficientofthegainsettingfeedbackresistor.Typicalvolt-

ageratingsoflowwattageresistorsare150to250V.Upto500Vcanappearacrossthefeedbackresistor.High

voltageratedresistorscanbeobtained.Howevera1megohmfeedbackresistorcomposedoffive200kresistorsin

serieswillproducethepropervoltagerating.

CAUTIONS

TheoperatingvoltagesofthePA95arepotentiallylethal.Duringcircuitdesigndevelopafunctioningcircuitatthe

lowestpossiblevoltages.Cliptestleadsshouldbeusedfor"handsoff"measurementswhiletroubleshooting.

CONTACTING CIRRUS LOGIC SUPPORT

ForallApexPrecisionPowerproductquestionsandinquiries,calltollfree800-546-2739inNorthAmerica.

Forinquiriesviaemail,pleasecontacttucson.support@cirrus.com.

InternationalcustomerscanalsorequestsupportbycontactingtheirlocalCirrusLogicSalesRepresentative.

Tofindtheonenearesttoyou,gotowww.cirrus.com

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