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TL431A: Voltage Reference, Programmable Precision, Shunt Regulator

Overview
Specifications
Packages
Datasheet: Programmable Precision References
Rev. 39 (189kB)
Product Overview
»View Reliability Data
»View Material Composition
»Product Change Notification (14)
The TL431, A, B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431, A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
Features
 
  • Programmable Output Voltage to 36 V
  • Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)
  • Low Dynamic Output Impedance, 0.22 W Typical
  • Sink Current Capability of 1.0 mA to 100 mA
  • Equivalent Full-Range Temperature Coefficient of 50 ppm/ °C Typical
  • Temperature Compensated for Operation over Full Rated Operating Temperature Range
  • Low Output Noise Voltage
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Simulation Models (1) Package Drawings (4)
Data Sheets (1)  
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
TL431ACDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 $0.106
TL431ACDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 $0.1133
TL431ACDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.1467
TL431ACLPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Bulk Bag 2000 $0.1467
TL431ACLPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 $0.1467
TL431ACLPREG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 $0.1207
TL431ACLPRPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Fan-Fold 2000 $0.1467
TL431ACPG Obsolete 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator PDIP-8 626-05 NA Tube 50  
TL431AIDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 $0.1133
TL431AIDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 $0.2
TL431AIDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.1867
TL431AILPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Bulk Bag 2000 $0.1867
TL431AILPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 $0.1867
TL431AILPRMG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Fan-Fold 2000 Contact Sales Office
TL431AILPRPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Fan-Fold 2000 $0.12
TL431AIPG Obsolete 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator PDIP-8 626-05 NA Tube 50  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:44 MST 2017) : 3228
Avnet   (2017-03-26) : <100
FutureElectronics   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
PandS   (2017-03-26) : <100
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:44 MST 2017) : 12000
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 8,000
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 8 to 12
Arrow   (Sun Mar 26 15:52:44 MST 2017) : 20874
Digikey   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:44 MST 2017) : 1320
Avnet   (2017-03-26) : <100
Digikey   (2017-03-26) : >1K
FutureElectronics   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 4,000
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 4 to 8
Arrow   (Sun Mar 26 15:52:44 MST 2017) : 345
Avnet   (2017-03-26) : >1K
Digikey   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 1990
Digikey   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 8,000
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : Contact Factory
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 3315
Avnet   (2017-03-26) : >1K
Digikey   (2017-03-26) : >1K
FutureElectronics   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 7,350
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2017-03-25) : 16,000
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 34270
Avnet   (2017-03-26) : >50K
Digikey   (2017-03-26) : >1K
FutureElectronics   (2017-03-26) : >10K
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 117,500
PandS   (2017-03-26) : >10K
Market Leadtime (weeks) : 4 to 8
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 3884
Avnet   (2017-03-26) : <1K
Digikey   (2017-03-26) : <1K
FutureElectronics   (2017-03-26) : <1K
Mouser   (2017-03-26) : >1K
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : 13 to 16
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 25
Avnet   (2017-03-26) : >1K
Digikey   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
PandS   (2017-03-26) : >50K
Market Leadtime (weeks) : 4 to 8
Avnet   (2017-03-26) : >1K
Mouser   (2017-03-26) : >1K
Market Leadtime (weeks) : 2 to 4
Arrow   (Sun Mar 26 15:52:45 MST 2017) : 91
Mouser   (2017-03-26) : >1K
ON Semiconductor   (2017-03-25) : 34,000
PandS   (2017-03-26) : >1K
Market Leadtime (weeks) : Contact Factory
Datasheet: Programmable Precision References
Rev. 39 (189kB)
Product Overview
»View Reliability Data
»View Material Composition
»Product Change Notification (14)

Product Compliance Status Description Type V(BR) Typ (V) Tolerance (%) IQ Typ (mA) IR Min (mA) VF Max (V) TA Min (°C) TA Max (°C) Package Type
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
SOIC-8
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
Micro8™
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
SOIC-8
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
0
70
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
SOIC-8
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
Micro8™
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
SOIC-8
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
TO-92
Pb-free
Halide free
 Active     Voltage Reference, Programmable Precision, Shunt Regulator 
Adjustable
2.495
1
0.5
1
36
-40
85
TO-92
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