TL431: Voltage Reference, Programmable Precision, Shunt Regulator

Overview
Specifications
Packages
Datasheet: Programmable Precision Reference
Rev. 34 (210.0kB)
»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
Application Notes (6) Data Sheets (1)
Simulation Models (1) Package Drawings (4)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
TL431CDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 $0.14
TL431CDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 Contact Sales Office
TL431CDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 $0.14
TL431CLPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Bulk Bag 2000 $0.112
TL431CLPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Tape and Reel 2000 $0.112
TL431CLPREG Active, Not Rec 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Tape and Reel 2000  
TL431CLPRMG Active, Not Rec 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Fan-Fold 2000  
TL431CLPRPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Fan-Fold 2000 $0.112
TL431CPG Last Shipments 
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator PDIP-8 626-05 NA Tube 50  
TL431IDG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tube 98 Contact Sales Office
TL431IDMR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator Micro8™ 846A-02 1 Tape and Reel 4000 Contact Sales Office
TL431IDR2G Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator SOIC-8 751-07 1 Tape and Reel 2500 Contact Sales Office
TL431ILPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Bulk Bag 2000 $0.1467
TL431ILPRAG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Tape and Reel 2000 $0.1467
TL431ILPRPG Active
Pb-free
Halide free
Voltage Reference, Programmable Precision, Shunt Regulator TO-92 29-11 Fan-Fold 2000 Contact Sales Office
TL431IPG 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) :
Arrow   (2014-04-20 21:31) : 802
Avnet   (2014-04-18 00:00) : >1K
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
Newark   (2014-04-18 00:00) : >1K
ON Semiconductor   (2014-04-16 00:00) : 4,214
Market Leadtime (weeks) :
ON Semiconductor   (2014-04-16 00:00) : 4,000
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 68200
Avnet   (2014-04-18 00:00) : >10K
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >10K
Mouser   (2014-04-18 00:00) : >1K
Newark   (2014-04-18 00:00) : >1K
ON Semiconductor   (2014-04-16 00:00) : 10,000
P&S   (2014-04-18 00:00) : >1K
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 3120
Avnet   (2014-04-18 00:00) : >1K
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
Newark   (2014-04-18 00:00) : >1K
P&S   (2014-04-18 00:00) : <100
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 26000
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
Market Leadtime (weeks) :
Market Leadtime (weeks) :
Market Leadtime (weeks) :
Digi-Key   (2014-04-18 00:00) : >10K
Future Electronics   (2014-04-18 00:00) : >10K
Mouser   (2014-04-18 00:00) : >1K
Market Leadtime (weeks) :
Mouser   (2014-04-18 00:00) : >1K
Market Leadtime (weeks) :
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
Newark   (2014-04-18 00:00) : >1K
P&S   (2014-04-18 00:00) : In Stock
Market Leadtime (weeks) :
Market Leadtime (weeks) :
Digi-Key   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
ON Semiconductor   (2014-04-16 00:00) : 20,618
P&S   (2014-04-18 00:00) : <100
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 5752
Avnet   (2014-04-18 00:00) : >1K
Digi-Key   (2014-04-18 00:00) : >1K
Future Electronics   (2014-04-18 00:00) : >1K
Mouser   (2014-04-18 00:00) : >1K
P&S   (2014-04-18 00:00) : <100
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 6000
Mouser   (2014-04-18 00:00) : >1K
P&S   (2014-04-18 00:00) : <100
Market Leadtime (weeks) :
Arrow   (2014-04-20 21:31) : 6000
Mouser   (2014-04-18 00:00) : >1K
Newark   (2014-04-18 00:00) : >1K
ON Semiconductor   (2014-04-16 00:00) : 6,000
Market Leadtime (weeks) :
Datasheet: Programmable Precision Reference
Rev. 34 (210.0kB)
»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   2.2     1   36   0   70   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   0   70   Micro8™ 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   0   70   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   0   70   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   Micro8™ 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   TO-92 
 Pb-free 
 Halide free 
 Active     Voltage Reference, Programmable Precision, Shunt Regulator   Adjustable   2.495   2.2     1   36   -40   85   TO-92 
Previously Viewed Products
Clear List

Associated Products
  Do you need a device with a lower minumim operating current? NCP431