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TL431B: Voltage Reference, Programmable Precision, Shunt Regulator

Overview
Specifications
Packages
Datasheet: Programmable Precision Reference
Rev. 37 (176kB)
»View Reliability Data
»View Material Composition
»Product Change Notification (12)
Product Overview
Product Description
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.
TL431BCDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 $0.1333
TL431BCDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 Contact Sales Office
TL431BCDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.1733
TL431BCLPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Bulk Bag 2000 $0.1733
TL431BCLPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 Contact Sales Office
TL431BCLPREG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 Contact Sales Office
TL431BCLPRMG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Fan-Fold 2000 $0.1733
TL431BCPG Last Shipments 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator PDIP-8 626-05 NA Tube 50  
TL431BIDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 $0.2067
TL431BIDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 Contact Sales Office
TL431BIDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.2067
TL431BILPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Bulk Bag 2000 $0.2067
TL431BILPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 $0.2067
TL431BIPG Last Shipments 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator PDIP-8 626-05 NA Tube 50  
TL431BVDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 Contact Sales Office
TL431BVDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 Contact Sales Office
TL431BVDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.24
TL431BVLPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Bulk Bag 2000 $0.24
TL431BVLPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 NA Tape and Reel 2000 $0.24
TL431BVPG Last Shipments 
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) : 4 to 8
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 98
PandS   (2015-07-09) : <100
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Arrow   (Fri Jul 10 22:41:19 MST 2015) : 5000
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >10K
Market Leadtime (weeks) : 4 to 8
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : 8 to 12
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2015-07-08) : 2,000
Market Leadtime (weeks) : 4 to 8
Avnet   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Arrow   (Fri Jul 10 22:41:19 MST 2015) : 779
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : >1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Avnet   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 4,000
Market Leadtime (weeks) : 4 to 8
Arrow   (Fri Jul 10 22:41:20 MST 2015) : 14374
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : 4 to 8
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : <1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 2,000
PandS   (2015-07-09) : <100
Market Leadtime (weeks) : 4 to 8
Arrow   (Fri Jul 10 22:41:20 MST 2015) : 2000
Avnet   (2015-07-09) : >10K
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : <1K
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 3,250
Market Leadtime (weeks) : 4 to 8
Digikey   (2015-07-09) : <100
FutureElectronics   (2015-07-09) : <100
Mouser   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Mouser   (2015-07-09) : >1K
Market Leadtime (weeks) : 13 to 16
Arrow   (Fri Jul 10 22:41:20 MST 2015) : 11424
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : <1K
PandS   (2015-07-09) : >10K
Market Leadtime (weeks) : 2 to 4
Avnet   (2015-07-09) : >1K
Chip1Stop   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 16,000
PandS   (2015-07-09) : <1K
Market Leadtime (weeks) : 17 to 20
Mouser   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 5,200
Datasheet: Programmable Precision Reference
Rev. 37 (176kB)
»View Reliability Data
»View Material Composition
»Product Change Notification (12)
Product Overview

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   0.4   0.5   1   36   0   70   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   Micro8™ 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   Micro8™ 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   Micro8™ 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   125   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   85   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   0.4   0.5   1   36   -40   125   TO-92 
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Associated Products
  Do you need a device with a lower minumim operating current? NCP431