L298N中文资料(3)

L298

PINFUNCTIONS(refertotheblockdiagram)

MW.151;152;34

PowerSO2;194;56

NameSenseA;SenseBOut1;Out2

VS

Function

Betweenthispinandgroundisconnectedthesenseresistortocontrolthecurrentoftheload.

OutputsoftheBridgeA;thecurrentthatflowsthroughtheloadconnectedbetweenthesetwopinsismonitoredatpin1.

SupplyVoltageforthePowerOutputStages.

Anon-inductive100nFcapacitormustbeconnectedbetweenthispinandground.

TTLCompatibleInputsoftheBridgeA.

TTLCompatibleEnableInput:theLstatedisablesthebridgeA(enableA)and/orthebridgeB(enableB).Ground.

SupplyVoltagefortheLogicBlocks.A100nFcapacitormustbeconnectedbetweenthispinandground.TTLCompatibleInputsoftheBridgeB.

OutputsoftheBridgeB.Thecurrentthatflowsthroughtheloadconnectedbetweenthesetwopinsismonitoredatpin15.NotConnected

5;76;118910;1213;14–

7;98;141,10,11,20

1213;1516;173;18

Input1;Input2EnableA;EnableB

GNDVSSInput3;Input4Out3;Out4

N.C.

ELECTRICALCHARACTERISTICS(VS=42V;VSS=5V,Tj=25°C;unlessotherwisespecified)

SymbolVSVSSIS

Parameter

SupplyVoltage(pin4)LogicSupplyVoltage(pin9)QuiescentSupplyCurrent(pin4)

Ven=H;IL=0Ven=L

ISS

QuiescentCurrentfromVSS(pin9)Ven=H;IL=0

Ven=L

ViLViHIiLIiHVen=LVen=HIen=LIen=H

InputLowVoltage(pins5,7,10,12)InputHighVoltage(pins5,7,10,12)LowVoltageInputCurrent(pins5,7,10,12)

HighVoltageInputCurrent(pins5,7,10,12)

EnableLowVoltage(pins6,11)EnableHighVoltage(pins6,11)LowVoltageEnableCurrent(pins6,11)

HighVoltageEnableCurrent(pins6,11)

Ven=L

Ven=H≤VSS–0.6VIL=1AIL=2AIL=1AIL=2AIL=1AIL=2A

(5)(5)(5)(5)

0.950.851.80–1(1)

301.3521.21.7

Vi=L

Vi=H≤VSS–0.6V

–0.32.3

30

Vi=LVi=HVi=XVi=LVi=HVi=X

–0.32.3

247

TestConditions

OperativeCondition

Min.VIH+2.54.5

51350Typ.

Max.46722704361261.5VSS–101001.5VSS–101001.72.71.62.33.24.92

UnitVVmAmAmAmAmAmAVVµAµAVVµAµAVVVVVVV3/13

VCEsat(H)SourceSaturationVoltageVCEsat(L)SinkSaturationVoltageVCEsatVsens

TotalDrop

SensingVoltage(pins1,15)