- 深圳市品优时代科技有限公司
7年
IR2277STRPBF
IR(国际整流器)
IR
SOIC-16
8 V to 20 V
- 40 C - + 125 C
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.
