TL431: Voltage Reference, Programmable Precision, Shunt Regulator

Datasheet: Programmable Precision References
Rev. 42 (218kB)
Product Overview
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Product Change Notification
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
Availability & Samples
Specifications
Case Outlines
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV431AIDMR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
TL431 Micro8 846A-02 1 260 Tape and Reel 4000 $0.2039
NCV431AIDR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.28
NCV431BVDMR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
TL431 Micro8 846A-02 1 260 Tape and Reel 4000 $0.336
NCV431BVDR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.2012
TL431CDG Lifetime
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tube 98 $0.1475
TL431CDMR2G Lifetime
Pb-free
Halide free
TL431 Micro8 846A-02 1 260 Tape and Reel 4000 $0.1173
TL431CDR2G Active
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1333
TL431CLPG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Bulk Bag 2000 $0.0829
TL431CLPRAG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Tape and Reel 2000 $0.112
TL431CLPREG Last Shipments
Pb-free
Halide free
TL431 TO-92 29-11 NA Tape and Reel 2000  
TL431CLPRMG Lifetime
Pb-free
Halide free
TL431 TO-92 29-10 NA Fan-Fold 2000 $0.068
TL431CLPRPG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Fan-Fold 2000 $0.0829
TL431CPG Obsolete 
Pb-free
Halide free
TL431 PDIP-8 626-05 NA Tube 50  
TL431IDG Last Shipments
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tube 98  
TL431IDMR2G Active
Pb-free
Halide free
TL431 Micro8 846A-02 1 260 Tape and Reel 4000 $0.126
TL431IDR2G Active
Pb-free
Halide free
TL431 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1319
TL431ILPG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Bulk Bag 2000 $0.1036
TL431ILPRAG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Tape and Reel 2000 $0.1156
TL431ILPRPG Active
Pb-free
Halide free
TL431 TO-92 29-10 NA Fan-Fold 2000 $0.1168
TL431IPG Obsolete 
Pb-free
Halide free
TL431 PDIP-8 626-05 NA Tube 50  
TL431CLP Obsolete
TL431 TO-92 29-11 NA Bulk Bag 2000  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 25,186
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 16,000
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : >10K
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : In Stock
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
V(BR) Typ (V)
Tolerance (%)
IQ Typ (mA)
IR Min (mA)
VF Max (V)
TA Min (°C)
TA Max (°C)
Package Type
NCV431AIDMR2G  
 $0.2039 
Pb
A
H
P
 Active   
Adjustable
2.5
1
0.5
1
36
-40
125
Micro8
NCV431AIDR2G  
 $0.28 
Pb
A
H
P
 Active   
Adjustable
2.5
1
0.5
1
36
-40
125
SOIC-8
NCV431BVDMR2G  
 $0.336 
Pb
A
H
P
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
125
Micro8
NCV431BVDR2G  
 $0.2012 
Pb
A
H
P
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
125
SOIC-8
TL431CDR2G  
 $0.1333 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
0
70
SOIC-8
TL431CLPG  
 $0.0829 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
0
70
TO-92
TL431CLPRAG  
 $0.112 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
0
70
TO-92
TL431CLPRPG  
 $0.0829 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
0
70
TO-92
TL431IDMR2G  
 $0.126 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
-40
85
Micro8
TL431IDR2G  
 $0.1319 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
-40
85
SOIC-8
TL431ILPG  
 $0.1036 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
-40
85
TO-92
TL431ILPRAG  
 $0.1156 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
-40
85
TO-92
TL431ILPRPG  
 $0.1168 
Pb
H
 Active   
Adjustable
2.5
2.2
1
36
-40
85
TO-92
Case Outlines
751-07    626-05    846A-02    29-11    29-10   
Packages
TL431: Voltage Reference, Programmable Precision, Shunt Regulator
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Associated Products
Do you need a device with A lower minumim operating current? NCP431

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