IR2277STRPBF 驱动IC 现货库存 IR专营

Features

Floatingchannelupto600VforIR2177&1200Vfor

IR2277

Synchronoussamplingmeasurementsystem

HighPWMnoise(ripple)rejectioncapability

DigitalPWMoutput

FastOverCurrentdetection

Suitableforbootstrappowersupplies

Lowsensinglatency(<7.5µsec@20kHz)

RatiometricanalogoutputsuitableforDSPA/Dinterface

Description

IR2177/IR2277isahighvoltage,highspeed,singlephasecurrent

sensorinterfaceforACmotordriveapplications.Thecurrentis

sensedbyanexternalshuntresistor.TheICconvertstheanalog

voltageintoatimeintervalthroughaprecisecircuitthatalso

performsaverygoodripplerejectionshowingsmallgroupdelay.

Thetimeintervalislevelshiftedandgiventotheoutputbothasa

PWMsignal(PO)andanalogvoltage(OUT).Theanalogvoltageis

proportionaltothemeasuredcurrentandisratiometricwithrespect

toanexternallyprovidedvoltagereference.Themaxthroughputis

40ksample/secsuitableforupto20kHzasymmetricalPWM

modulationandmaxdelayis<7.5µsec(@20kHz).Alsoafastover

currentsignalisprovidedforIGBTprotection.　　Features

Floatingchannelupto600VforIR2177&1200Vfor

IR2277

Synchronoussamplingmeasurementsystem

HighPWMnoise(ripple)rejectioncapability

DigitalPWMoutput

FastOverCurrentdetection

Suitableforbootstrappowersupplies

Lowsensinglatency(<7.5µsec@20kHz)

RatiometricanalogoutputsuitableforDSPA/Dinterface

Description

IR2177/IR2277isahighvoltage,highspeed,singlephasecurrent

sensorinterfaceforACmotordriveapplications.Thecurrentis

sensedbyanexternalshuntresistor.TheICconvertstheanalog

voltageintoatimeintervalthroughaprecisecircuitthatalso

performsaverygoodripplerejectionshowingsmallgroupdelay.

Thetimeintervalislevelshiftedandgiventotheoutputbothasa

PWMsignal(PO)andanalogvoltage(OUT).Theanalogvoltageis

proportionaltothemeasuredcurrentandisratiometricwithrespect

toanexternallyprovidedvoltagereference.Themaxthroughputis

40ksample/secsuitableforupto20kHzasymmetricalPWM

modulationandmaxdelayis<7.5µsec(@20kHz).Alsoafastover

currentsignalisprovidedforIGBTprotection.