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TL431B: Voltage Reference, Programmable Precision, Shunt Regulator

Datasheet: Programmable Precision References
Rev. 41 (218kB)
Product Overview
»View Reliability Data
»View Material Composition
» 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
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
STR-SMARTLIBGAUGE-GEVK Active
Pb-free
LC709204F Smart LiB Gauge Automatic Support Kit
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
TL431BCDG Lifetime
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tube 98 $0.1509
TL431BCDMR2G Active
Pb-free
Halide free
TL431B Micro8 846A-02 1 260 Tape and Reel 4000 Contact Sales Office
TL431BCDR2G Active
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1741
TL431BCLPG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Bulk Bag 2000 $0.1205
TL431BCLPRAG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Tape and Reel 2000 Contact Sales Office
TL431BCLPREG Last Shipments
Pb-free
Halide free
TL431B TO-92 29-11 NA Tape and Reel 2000  
TL431BCLPRMG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Fan-Fold 2000 $0.1081
TL431BCPG Obsolete 
Pb-free
Halide free
TL431B PDIP-8 626-05 NA Tube 50  
TL431BIDG Active
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tube 98 $0.144
TL431BIDMR2G Active
Pb-free
Halide free
TL431B Micro8 846A-02 1 260 Tape and Reel 4000 $0.1851
TL431BIDR2G Active
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1651
TL431BILPG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Bulk Bag 2000 $0.1551
TL431BILPRAG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Tape and Reel 2000 $0.2067
TL431BIPG Obsolete 
Pb-free
Halide free
TL431B PDIP-8 626-05 NA Tube 50  
TL431BVDG Lifetime
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tube 98 $0.2079
TL431BVDMR2G Active
Pb-free
Halide free
TL431B Micro8 846A-02 1 260 Tape and Reel 4000 $0.3013
TL431BVDR2G Active
Pb-free
Halide free
TL431B SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1801
TL431BVLPG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Bulk Bag 2000 $0.1979
TL431BVLPRAG Active
Pb-free
Halide free
TL431B TO-92 29-10 NA Tape and Reel 2000 $0.1801
TL431BVPG Obsolete 
Pb-free
Halide free
TL431B PDIP-8 626-05 NA Tube 50  
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >10K
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 4,000
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 2 to 4
Avnet   (2020-08-19 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : <1K
ON Semiconductor   (2020-09-02 00:00) : 12,152
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 8,000
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 2,450
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 12,000
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : >10K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
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
TL431BCDMR2G  
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
0
70
Micro8
TL431BCDR2G  
 $0.1741 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
0
70
SOIC-8
TL431BCLPG  
 $0.1205 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
0
70
TO-92
TL431BCLPRAG  
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
0
70
TO-92
TL431BCLPRMG  
 $0.1081 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
0
70
TO-92
TL431BIDG  
 $0.144 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
SOIC-8
TL431BIDMR2G  
 $0.1851 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
Micro8
TL431BIDR2G  
 $0.1651 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
SOIC-8
TL431BILPG  
 $0.1551 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
TO-92
TL431BILPRAG  
 $0.2067 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
TO-92
TL431BVDMR2G  
 $0.3013 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
Micro8
TL431BVDR2G  
 $0.1801 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
125
SOIC-8
TL431BVLPG  
 $0.1979 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
85
TO-92
TL431BVLPRAG  
 $0.1801 
Pb
H
 Active   
Adjustable
2.5
0.4
0.5
1
36
-40
125
TO-92
Case Outlines
751-07    626-05    846A-02    29-11    29-10   
Packages
TL431B: Voltage Reference, Programmable Precision, Shunt Regulator
Previously Viewed Products
Clear List

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

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