Apex digital Pa90 User manual

EK16

EK16U 1

EK16 PA90,PA91,PA92,PA93,PA98

INTRODUCTION

Thiseasy-to-usekitprovidesaplatformfortheevaluationoflinearpoweramplierscircuitsusingthePA90/PA91/

PA92/PA93/PA98pin-out.Withamplebreadboardingareasitisexibleenoughtoanalyzeamultitudeofstandard

orproprietarycircuitcongurations.Criticalconnectionsforpowersupplybypassing,compensationandcurrent

limitingarepre-wired.Componentsnotusuallyreadilyavailableinengineeringlabsareprovided.Externalcon-

nectiontotheevaluationkitcanbemadeviatheterminalsattheedgeofthecircuitboard.Theseterminalpadsare

suitableforstandardbananajacksordirectsolderingofwires.TheschematicisshowninFigure2.

PARTS LIST

Part# Description,Vendor Quantity

HS23 Heatsink,Wakeeld232-200AB 1

HS20 Heatsink,ApexMicrotechnology 1

MS06 MatingSocketStrip,ApexMicrotechnology 1bag,2ea.

EVAL20 PCBoard,ApexMicrotechnology 1

TW07 ThermalWasher,ApexMicrotechnology 1box,10ea.

ZX7R105KTL Capacitor,NOVACAPST2225K501LLXW 2

EC02 Capacitor,UnitedChemiconKME400VB33RM16X31LL 2

CSR05 Resistor,CaddockMP930-0.301% 1

CSR06 Resistor,CaddockMP930-0.201% 1

CSR07 Resistor,CaddockMP930-0.101% 1

ASSEMBLY

1. SeeFigure1.SolderthesurfacemountceramiccapacitorstotheDUTsideofthecircuitboardatC1andC2.

2. SoldertheelectrolyticcapacitorstothecircuitboardatC3andC4.Matchthepolaritymarkingsonthecircuit

boardwiththoseonthecapacitorbody.

3. Selectacurrentlimitingresistorfromthethreevaluesprovided.Seetheproductdatasheetforinformationon

howtoselectavalue.Applyathincoatingofthermalgreasetothebackoftheresistor.Usinga4-40X1/4"

screwand4-40nut,mounttheresistortothelowerofthetwoholesinthesmallheatsinkprovided.Solderthis

assemblytothecircuitboardatRLIM.Aftersolderingtheresistorleadsthetabsontheheatsinkmaybebentwith

plierstosecureittothecircuitboard.

4. Examinethelargeheatsink.Noticethatthereareseveralholesinthefaceoftheheatsink.Thesearefor

mountingvariousApexMicrotechnologyampliermodels.Thecircuitboardalignstheamplierwiththecorrect

mountingholeoncetheheatsinkisattachedtothecircuitboard.Theheatsinkcanbemountedineitheroftwo

positions.Onepositionisusedformountingtheampliertotheheatsinkwithoutthematingsocketstrip(the

mountingholeoftheamplierisclosertothecircuitboard).Rotatingtheheatsink180degreesallowsmounting

theamplierwiththematingsocketstrip(themountingholeoftheamplierisfurtherfromthecircuitboard).

5. Whiledevelopingyourapplicationcircuityouwillprobablywanttousethematingsocketstrip.Clipoffthestrip

afterthe12thposition.InsertthestripintothecircuitboardfromtheDUTsideandsolderonepinonthereverse

side.Checkthatthematingsocketstripisfullyseatedagainstthecircuitboardthensoldertheremainingpins.

Inserttheamplierfullyintothematingsocketstrip,notingthepin1locationsontheamplierandthecircuit

board.

6. Thefourholesatthecornersofthecircuitboardareformounting#6standoffspacersifdesired.Theremaining

twoslottedholesareformountingthelargeheatsinktotheDUTsideofthecircuitboard.Temporarilymountthe

heatsinkwith2#6X1/2"selftappingscrewsfromtheoppositesideofthecircuitboard.Donotfullytightenthe

screwsatthistime.Checkforalignmentoftheslotinthemountingtaboftheamplierwithaholeintheheat

sink.Dismountandrotatetheheatsinkifnecessarytoachieveanalignmentwithaholeintheheatsink.Posi-

tiontheheatsinksothatthebackoftheampliermountingtabisushwiththeheatsinkthentightentheheat

sinkmountingscrews.

Evaluation Kit for

PA90/PA91/PA92/PA93/PA98 Pin-Out

EK16

www.apexanalog.com OCT 2012

EK16U REVH

EK16

2 EK16U

FIGURE1.

7. Hangthethermalwasherneartheendofa6-32X1/2"screw.Slightlypulltheamplierawayfromtheheatsink

face.Usethescrewtopositionthethermalwasherbehindtheamplierandinsertthescrewintothemounting

holeoftheheatsink.Securethescrewfromtheoppositesideoftheheatsinkusinganutholder.

8. Addothercomponentsasnecessarytocompleteyourapplicationcircuit.

EK16

EK16U 3

FIGURE3.

Figure3showsasuggestedsimpletestcircuitthatyou

canbuildtogainafamiliaritywiththeevaluationkitas

well as the amplier.At the output (pin 6) you should

observea100Vp-psinewave.

*COMPONENTS SUPPLIED WITH EVALUATION KIT.

COMPONENTS SUPPLIED WITH EVALUATION KIT.

FIGURE2.

Figure2showstheschematicoftheevaluationkit'spre-

wiredconnections.Componentssuppliedwiththekitare

marked with an asterisk (*).All other connections are

madeviathebread-boardingareasofthecircuitboard.

EK16

4 EK16U

EVAL20

APEX

CIRCUIT SIDE

GND

COMPONENT & DUT SIDE

EVAL20 R-A

M I O

R T N

E C H L

O O

+IN

OUTPUT

GND +Vs

-IN -Vs

DRIVE

Rc C2

GND

SPARE SPARE SPARE

OUTPUT

DRIVE

GND

- -

C3 C4

1 12

LIM

TOP SIDE

BOTTOM SIDE

6.68

2.87

FIGURE4.PCB

EK16

EK16U 5

NEED TECHNICAL HELP? CONTACT APEX SUPPORT!

ForallApexMicrotechnologyproductquestionsandinquiries,calltollfree800-546-2739inNorthAmerica.

Forinquiriesviaemail,pleasecontact[email protected].

InternationalcustomerscanalsorequestsupportbycontactingtheirlocalApexMicrotechnologySalesRepresentative.

Tondtheonenearesttoyou,gotowww.apexanalog.com

IMPORTANTNOTICE

ApexMicrotechnology,Inc.hasmadeeveryefforttoinsuretheaccuracyofthecontentcontainedinthisdocument.However,theinformationissubjecttochange

withoutnoticeandisprovided"ASIS"withoutwarrantyofanykind(expressedorimplied).ApexMicrotechnologyreservestherighttomakechangeswithoutfurther

noticetoanyspecicationsorproductsmentionedhereintoimprovereliability.ThisdocumentisthepropertyofApexMicrotechnologyandbyfurnishingthisinforma-

tion,ApexMicrotechnologygrantsnolicense,expressedorimpliedunderanypatents,maskworkrights,copyrights,trademarks,tradesecretsorotherintellectual

propertyrights.ApexMicrotechnologyownsthecopyrightsassociatedwiththeinformationcontainedhereinandgivesconsentforcopiestobemadeoftheinforma-

tiononlyforusewithinyourorganizationwithrespecttoApexMicrotechnologyintegratedcircuitsorotherproductsofApexMicrotechnology.Thisconsentdoesnot

extendtoothercopyingsuchascopyingforgeneraldistribution,advertisingorpromotionalpurposes,orforcreatinganyworkforresale.

APEXMICROTECHNOLOGYPRODUCTSARENOTDESIGNED,AUTHORIZEDORWARRANTEDTOBESUITABLEFORUSEINPRODUCTSUSEDFOR

LIFESUPPORT,AUTOMOTIVESAFETY,SECURITYDEVICES,OROTHERCRITICALAPPLICATIONS.PRODUCTSINSUCHAPPLICATIONSAREUNDER-

STOODTOBEFULLYATTHECUSTOMERORTHECUSTOMER’SRISK.

ApexMicrotechnology,ApexandApexPrecisionPoweraretrademarksofApexMicrotechnolgy,Inc.Allothercorporatenamesnotedhereinmaybetrademarks

oftheirrespectiveholders.

www.apexanalog.com OCT 2012

EK16U REVH

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