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TL1431IDTSTN/a11000avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431IZSTN/a2500avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431STN/a60avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431ACDSTN/a300avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431ACDTSTN/a5200avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431ACZTIN/a100avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431AIDSTN/a680avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431AIZTIN/a9avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431CDSTN/a700avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431CDTSTN/a4426avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431CZSTN/a45avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431CZ-AP |TL1431CZAPSTN/a1800avaiPROGRAMMABLE VOLTAGE REFERENCE
TL1431IDSTN/a410avaiPROGRAMMABLE VOLTAGE REFERENCE


TL1431IDT ,PROGRAMMABLE VOLTAGE REFERENCETL1431PROGRAMMABLE VOLTAGE REFERENCE ■ ADJUSTABLE OUTPUT VOLTAGE : 2.5 to 36V■ SINK CURRENT CAP ..
TL1431IYDT ,Programmable Voltage ReferenceAbsolute maximum ratingsSymbol Parameter Value UnitV Cathode to anode voltage 37 VKAI Continuous ca ..
TL1431IZ ,PROGRAMMABLE VOLTAGE REFERENCETL1431PROGRAMMABLE VOLTAGE REFERENCE ■ ADJUSTABLE OUTPUT VOLTAGE : 2.5 to 36V■ SINK CURRENT CAP ..
TL1431M ,Precision Adjustable (Programmable) Shunt ReferenceBlock Diagram... 12Information..... 218.3 Feature Description ... 134 Revision HistoryChanges from ..
TL1431MJG ,Precision Adjustable (Programmable) Shunt ReferenceFeatures 3 DescriptionThe TL1431 device is a precision programmable1• 0.4% Initial Voltage Toleranc ..
TL1431QDRG4Q1 ,Automotive Catalog Precision Adjustable (Programmable) Shunt Reference 8-SOIC -40 to 125
TLV2464CPWRG4 , FAMILY OF LOW-POWER RAIL-TO-RAIL INPUT/OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
TLV2464ID ,Quad Low Power, Rail-to-Rail Input/Output Operational AmplifierWWW.TI.COMDevice TLV2465A is Obsolete          ..
TLV2464IDR ,Quad Low Power, Rail-to-Rail Input/Output Operational AmplifierDevice TLV2465A is Obsolete            ..
TLV2464IDRG4 ,Quad Low Power, Rail-to-Rail Input/Output Operational Amplifier 14-SOIC -40 to 125WWW.TI.COMDevice TLV2465A is Obsolete          ..
TLV2464IPW ,Quad Low Power, Rail-to-Rail Input/Output Operational AmplifierDevice TLV2465A is Obsolete            ..
TLV2464IPWG4 ,Quad Low Power, Rail-to-Rail Input/Output Operational Amplifier 14-TSSOP -40 to 125WWW.TI.COMDevice TLV2465A is Obsolete          ..


TL1431-TL1431ACD-TL1431ACDT-TL1431ACZ-TL1431AID-TL1431AIZ-TL1431CD-TL1431CDT-TL1431CZ-TL1431CZ-AP-TL1431ID-TL1431IDT-TL1431IZ
PROGRAMMABLE VOLTAGE REFERENCE
ADJUSTABLE OUTPUT VOLTAGE : 2.5 to 36V� SINK CURRENT CAPABILITY : 1 to 100mA� TYPICAL OUTPUT IMPEDANCE : 0.2Ω� 0.4% AND 0.25% PRECISION
DESCRIPTION

The TL1431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation.
The output voltage may be set to any value
between 2.5V and 36V with two external
resistors.
The TL1431 operates with a wide current range
from 1 to 100mA with a typical dynamic
impedance of 0.2Ω.
ORDER CODE
Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)

and Ammo Pack (AP) D = Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)
TL1431

PROGRAMMABLE VOLTAGE REFERENCE
TL1431
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 200°C/W for TO92 package = 130°C/W for SO8 batwing package
TL1431ELECTRICAL CHARACTERISTICS
Tamb = 25°C (unless otherwise specified)

1) ΔVREF is defined as the difference between the maximum and minimum values obtained over the full temperature range ΔVREF = VREF max. - VREF min.
2) The temperature coefficient is defined as the slopes (positive and negative) of the voltage vs temperature limits within which the reference is guaranteed.
3) The dynamic Impedance is defined as ZKA =
ΔVKA
ΔIK-----------------
TL1431
ELECTRICAL CHARACTERISTICS

Tamb = 25°C (unless otherwise specified)

1) ΔVREF is defined as the difference between the maximum and minimum values obtained over the full temperature range ΔVREF = VREF max. - VREF min..
2) The temperature coefficient is defined as the slopes (positive and negative) of the voltage vs temperature limits within which the reference is guaranteed.
3) The dynamic Impedance is defined as ZKA =
ΔVKA
ΔIK-----------------
TL1431Figure 1 : Test Circuit for VKA = VREF
Figure 3 : Test Circuit for IOFF


Figure 5 : Block diagram of TL1431


Figure 2 : Test Circuit for VKA > VREF
Figure 4 : Test Circuit for Phase Margin and

Voltage Gain
Figure 6 : Test Circuit for Response time

TL1431
Reference voltage vs Temperature
Reference voltage vs cathode current
Off-state cathode current vs Temperature

Reference voltage vs cathode current
Reference current vs Temperature
Ratio of change in V REF to Change in VKA vs
Temperature
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