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第5章 电压基准-TL431.pdf

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TL431A-Q1,TL431B-Q1

SGLS302E–MARCH2005–REVISEDNOVEMBER2016

TL431-Q1AdjustablePrecisionShuntRegulator

1Features3Description

TheTL431-Q1isathree-pinadjustableshunt

1•QualifiedforAutomotiveApplications

regulatorwithspecifiedthermalstabilityover

•AEC-Q100TestGuidanceWiththeFollowing:

applicableautomotivetemperatureranges.The

–DeviceTemperatureGrade1:–40°Cto125°CoutputvoltagecanbesettoanyvaluefromVREF

AmbientOperatingTemperatureRange(approximately2.5V)to36V,withtwoexternal

•ReferenceVoltageToleranceat25°C:resistors(seeFigure28).Thisdevicehasatypical

outputimpedanceof0.2Ω.Activeoutputcircuitry

–1%(AGrade)

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