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)