L297N, L297R, L298 Selling Leads, Datasheet
MFG:ST Package Cooled:DIP D/C:05+
L297N, L297R, L298
- Table of contents:
Info of L297N
Info of L297R
Info of L298
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About L290
PDF/DataSheet Download
Datasheet: L290
File Size: 106800 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
About L290
PDF/DataSheet Download
Datasheet: L290
File Size: 106800 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
About L298
PDF/DataSheet Download
Datasheet: L298
File Size: 189547 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
L298 General Description
TheL298isanintegratedmonolithiccircuitina15- eadMultiwattandPowerSO20packages.Itisa ighvoltage,highcurrentdualfull-bridgedriverde- igne toacceptstandardTTLlogiclevelsanddrive nductiveloadssuchasrelays,solenoids,DCand teppingmotors.Twoenableinputsareprovidedto nableordisablethedeviceindependentlyofthein- utsignals.Theemittersofthelowertransistorsof achbridgeareconnectedtogetherandthecorre- pondingexternalterminalcanbeusedforthecon-nectionofanexternalsensingresistor.Anadditional upplyinputisprovidedsothatthelogicworksata owervoltage.
L298 Maximum Ratings
|
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 |
L298 Features
.OPERATINGSUPPLYVOLTAGEUPTO46V
.TOTALDCCURRENTUPTO4A
.LOWSATURATIONVOLTAGE
.OVERTEMPERATUREPROTECTION
.LOGICAL!0!INPUTVOLTAGEUPTO1. HIGHNOISEIMMUNITY)
.TOTALDCCURRENTUPTO4A
.LOWSATURATIONVOLTAGE
.OVERTEMPERATUREPROTECTION
.LOGICAL!0!INPUTVOLTAGEUPTO1. HIGHNOISEIMMUNITY)
L298 Typical Application
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.
L298 Connection Diagram
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