HOLT HI-8382UT, HI-8382U, HI-8382ST, HI-8382SM-01, HI-8382S Datasheet

January2001

TheHI-8382andHI-8383businterfaceproductsaresilicon
gateCMOSdevicesdesignedasalinedriverinaccordancewith
theARINC429busspecifications.

HI-8382,HI-8383

PINCONFIGURATION (TopView)GENERALDESCRIPTION

Inputsareprovidedforclockingandsynchronization.These
signalsareAND'dwiththeDATAinputstoenhancesystem
performanceandallowtheHI-8382tobeusedinavarietyof
applications.Bothlogicandsynchronizationinputsfeature
built-in2,000VminimumESDinputprotectionaswellasTTL
andCMOScompatibility.

ThedifferentialoutputsoftheHI-8382areindependently
programmabletoeitherthehighspeedorlowspeedARINC 429
outputriseandfalltimespecificationsthroughtheuseoftwo
externalcapacitors.Theoutputvoltageswingisalsoadjustable
bytheapplicationofanexternalvoltagetotheVREFinput.The
HI-8382hason-chipZenerdiodesinserieswithafusetoeach
differentialoutputprotectingtheARINCbusfromanovervoltage
failure.Theoutputseachhaveaseriesresistanceof37.5ohms.
TheHI-8383isidenticaltotheHI-8382exceptthattheseries
resistorsare13ohmsandtheovervoltageprotectioncircuitry
hasbeeneliminated.

TheHI-8382andHI-8383areintendedforusewherelogic
sig nalsmustbeconvertedtoARINC429levelssuchasauser
ASICortheHI-8282ARINC429SerialTransmitter/Dual
ReceiverortheHI-6010ARINC429Transmitter/Receiver.Holt
productsarereadilyavailableforbothindustrialandmilitary
applications.PleasecontacttheHoltSalesDepartmentfor
additionalinformation,includingdatasheetsfortheHI-8282and
HI-6010products.

N/C

DATA(A)

N/C
N/C

C

A

N/C
N/C

(SeePage4-46foradditionalpackagepinconfigurations)

FUNCTION

4321282726

5
6

HI-8382J

7
8

9
10
11

28-PIN

PLASTIC

PLCC

12131415161718

+

HI-8382

25
24
23
22
21
20
19

CLOCK
N/C
DATA(B)
C

B

N/C
N/C
N/C

FEATURES

!

LowpowerCMOS

!

TTLandCMOScompatibleinputs

!

Programmableoutputvoltageswing

!

AdjustableARINCriseandfalltimes

!

Operatesatdataratesupto100Kbits

!

Overvoltageprotection

!

IndustrialandMilitarytemperatureranges

!

DSCCSMDpartnumber

ARINC429DIFFERENTIALLINEDRIVER

TRUTHTABLE

SYNCCLOCKDATA(A)DATA(B)AOUTBOUTCOMMENTS

XLXX0V0VNULL
LXXX0V0VNULL
HHLL0V0VNULL
HHLH-V+VLOW
HHHL+V-VHIGH
HHHH0V0VNULL

HOLTINTEGRATEDCIRCUITS

1(DS8382Rev.A)01/01

REFREF

REFREF

FUNCTIONALDESCRIPTION

HI-8382,HI-8383

TheSYNCandCLOCKinputsestablishdatasynchronization
utilizingtwoANDgates,oneforeachdatainput.Eachlogic
input,includingthepowerenable()input,are

STROBE
TTL/CMOScompatible.Besidesreducingchipcurrentdrain,
STROBE

alsofloatseachoutput.Howevertheovervoltage

fusesanddiodesoftheHI-8382arenotswitchedout.
Figure1illustratesatypicalARINC429busapplication.

ThreepowersuppliesarenecessarytooperatetheHI-8382;
typically+15V,-15Vand+5V.Thechipalsoworkswith±12V
supplies.The+5Vsupplycanalsoprovideareference
voltagethatdeterminestheoutputv oltageswing.The
differentialoutputvoltageswingwillequal2V.Ifavalueof
Votherthan+5Visneeded,aseparate+5Vpowersupply

REF

isrequiredforpinV.

1

REF

WiththeDATA(A)inputatalogichighandDATA(B)inputata
logiclow,Awillswitchtothe+VrailandBwill
switchtothe-Vrail(ARINCHIGHstate).Withbothdata

OUTREFOUT

REF

inputsignalsatalogiclowstate,theoutputswillbothswitchto
0V(ARINCNULLstate).

Thedriveroutputimpedance,R,isnominally75ohms.

OUT

Theriseandfalltimesoftheoutputscanbecalibratedthrough
theselectionoftwoexternalcapacitorvaluesthre
connectedtotheCandCi nputpins.Typicalvaluesfor
high-speedoperation(100KBPS)areC=C=75pFandfor
low-speedoperation(12.5to14KBPS)C=C=500pF.

AB

AB

AB

ata

Thedrivercanbeexternallypowereddownbyapplyingalogic
hightotheinputpin.Ifthisfeatureisnotbeingused,

STROBE

thepinshouldbetiedtoground.
TheCandCpinsareinputstounitygainamplifiers.

AB

Thereforetheymustbeallowedtoswingto-5V.Provisionto
switchcapacitorsmustbedonewithanalogswitchesthat
allowvoltagesbelowtheirground.

+15V+5V

V

REF

V

1

DATA(A)

INPUTS TOARINCBUS

DATA(B)

SYNC

CLOCK

+V

-V

STROBE

GND

C

C

-15V

OUT

B

DATA(A)

CLOCK

SYNC

DATA(B)

STROBE

Figure1. ARINC429BUSAPPLICATION

+V

C

REF

LEVELSHIFTER

ANDSLOPE

CONTROL(A)

LEVELSHIFTER

ANDSLOPE

CONTROL(B)

V 1

CURRENT

REGULATOR

A

OUTPUT

DRIVER(A)

R/2OUT

R/2OUT

OUTPUT

DRIVER(B)

F A

F B

OVERVOLTAGE

CLAMPS

R L

C L

NotincludedonHI-8383

-V

CGND

B

B

OUT

Figure2. FUNCTIONALBLOCKDIAGRAM

HOLTINTEGRATEDCIRCUITS

2

HI-8382,HI-8383

SYMBOLFUNCTIONDESCRIPTION

VPOWERTHEREFERENCEVOLTAGEUSEDTODETERMINETHEOUTPUTVOLTAGESWING

REF

STROBE

SYNCINPUTSYNCHRONIZESDATAINPUTS

DATA(A)INPUTDATAINPUTTERMINALA

CINPUTCONNECTIONFORDATA(A)SLEW-RATECAPACITOR

A

AOUTPUTARINCOUTPUTTERMINALA

OUT

-VPOWER-12Vto-15V

GNDPOWER0.0V

+VPOWER+12Vto+15V

BOUTPUTARINCOUTPUTTERMINALB

OUT

CINPUTCONNECTIONFORDATA(B)SLEW-RATECAPACITOR

B

DATA(B)INPUTDATAINPUTTERMINALB

CLOCKINPUTSYNCHRONIZESDATAINPUTS

VPOWER+5V±5%

1

INPUTALOGICHIGHONTHISINPUTPLACESTHEDRIVERINPOWERDOWNMODE

AllVoltagesreferencedtoGND,TA=OperatingTemperatureRange(unlessotherwisespecified)

PARAMETERSYMBOLCONDITIONSOPERATINGRANGEMAXIMUMUNIT

DifferentialVoltageVVoltagebetween+Vand-Vterminals40V

DIF

SupplyVoltage+V+10.8to+16.5V

-V-10.8to-16.5V
V+5±10%+7V

1

VoltageReferenceVForARINC429+5±5%6V

REF

ForApplicationsotherthanARINC0to66V

InputVoltageRangeVGND-0.3V

IN

>

V1+0.3V

<
OutputShort-CircuitDurationSeeNote:1
OutputOvervoltageProtectionSeeNote:2
OperatingTemperatureRangeTHi-temp&Military-55to+125°C

A

Industrial-40to+85°C

StorageTemperatureRangeTCeramic&Plastic-65to+150°C

STG

LeadTemperatureSoldering,10seconds+275°C
JunctionTemperatureT+175°C
PowerDissipationP16-PinCeramic DIPSeeNote:31.725W

J

D

28-PinCeramicLCCSeeNote:31.120W
28-PinPlasticPLCCSeeNote:32.143W
32-PinCERQUADSeeNote:31.725W

ThermalResistance,Ø16-PinCeramicDIP86.5°C/W

JA

(Junction-to-Ambient)28-PinCeramicLCC133.7°C/W

28-PinPlasticPLCC70.0°C/W
32-PinCERQUAD86.5°C/W

Note1.HeatsinkingmayberequiredforOutputShortCircuitat+125°Candfor100KBPSat+125°C.
Note2.ThefusesusedforOutputOvervoltageProtectionmaybeblownbythepresenceofavoltageateitheroutputthat isgreater

than±12.0VwithrespecttoGND.(HI-8382only)

Note3.Derateabove+25°C,11.5 mW/°Cfor16-PINDIPand32-PINCERQUAD,7.5mW/°Cfor28-PINLCC,14.2mW/°Cfor28-PINPLCC

NOTE:Stressesabovethoselistedunder"AbsoluteMaximumRatings"maycausepermanentdamagetothedevice.Thesea restressratings
only.Functionaloperationofthedeviceattheseoranyotherconditionsabovethoseindicatedintheoperationalse ctionsofthespecifications
isnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.

HOLTINTEGRATEDCIRCUITS

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