Features: .OPERATINGSUPPLYVOLTAGEUPTO46V.TOTALDCCURRENTUPTO4A.LOWSATURATIONVOLTAGE.OVERTEMPERATUREPROTECTION.LOGICAL!0!INPUTVOLTAGEUPTO1. HIGHNOISEIMMUNITY)ApplicationFig6showsabidirectionalDCmotorcontrolSche- aticDiagramforwhichonlyonebridgeisneeded. heexternalbridgeofdiodesD1toD4ismadeby ourfast...
L298: Features: .OPERATINGSUPPLYVOLTAGEUPTO46V.TOTALDCCURRENTUPTO4A.LOWSATURATIONVOLTAGE.OVERTEMPERATUREPROTECTION.LOGICAL!0!INPUTVOLTAGEUPTO1. HIGHNOISEIMMUNITY)ApplicationFig6showsabidirectionalDCmotorc...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
Fig6showsabidirectionalDCmotorcontrolSche- aticDiagramforwhichonlyonebridgeisneeded. heexternalbridgeofdiodesD1toD4ismadeby ourfastrecoveryelements(trr 200nsec)that ustbechosenofaVFaslowaspossibleatthe orstcaseoftheloadcurrent.
Thesenseoutputvoltagecanbeusedtocontrolthe urrentamplitudebychoppingtheinputs,ortopro- ideovercurrentprotectionbyswitchinglowtheen- bleinput.
Thebrakefunction(Fastmotorstop)requiresthat heAbsoluteMaximumRatingof2Ampsmust everbeovercome.
Whentherepetitivepeakcurrentneededfromthe oadishigherthan2Amps,aparalleledconfigura- ioncanbechosen(SeeFig.7).
Anexternalbridgeofdiodesarerequiredwhenin- uctiveloadsaredrivenandwhentheinputsofthe Carechopped;Shottkydiodeswouldbepreferred.
Symbol |
Parameter |
Value |
Unit |
VS |
PowerSupply |
50 |
V |
VSS |
LogicSupplyVoltage |
7 |
V |
VI,Ven |
InputandEnableVoltage |
-0.3to7 |
V |
IO |
PeakOutputCurrent(eachChannel) CNonRepetitive(t=10s) CRepetitive(80%on-C20%off=10ms) CDCOperatioon |
3 2.5 2 |
A A A |
Vsens |
SensingVoltage |
-1to2.3 |
V |
Ptot |
TotalPowerDissipation(Tcase =75C) |
25 |
W |
Top |
JunctionOperatingTemperature |
-25to130 |
|
Tstg,Tj |
StorageandJunctionTemperature |
-40to150 |
TheL298isanintegratedmonolithiccircuitina15- eadMultiwattandPowerSO20packages.L298 is a ighvoltage,highcurrentdualfull-bridgedriverde- igne toaccept standard TTLlogiclevelsanddrive nductiveloadssuchasrelays,solenoids,DCand teppingmotors.Two enableinputsareprovidedto nableordisablethedeviceindependentlyofthein- utsignals.The emittersofthelowertransistorsof achbridgeareconnectedtogetherandthecorre- pondingexternalterminalcanbeusedforthecon-nectionofanexternalsensingresistor.Anadditional upplyinputisprovidedsothatthelogicworksata owervoltage.