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TL431: Programmable Precision Reference

Overview
Specifications
Packages
Datasheet: Programmable Precision Reference
Rev. 29 (249.0kB)
»View Reliability Data
»View Material Composition
»Product Change Notification (14)
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 Information
Application Notes (6) Data Sheets (1)
Simulation Models (1) Package Drawings (4)
Availability and Samples
Product
Status
Pb-free
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Pins
Case Outline
Type
Qty.
TL431CDG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Rail 98 $0.2027
Sample
Inventory
TL431CDMR2G
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator Micro8™ 8 846A-02 1 Tape and Reel 4000 $0.2027
TL431CDR2G
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Tape and Reel 2500 $0.2027
Sample
Inventory
TL431CLPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Bag/Envelope 2000 $0.2027
Sample
Inventory
TL431CLPRAG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Tape and Reel 2000 $0.2027
Sample
Inventory
TL431CLPREG
Active, Not Rec  Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Tape and Reel 2000 $0.2027
TL431CLPRMG
Active, Not Rec  Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Fan-Fold 2000 $0.2027
TL431CLPRPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Fan-Fold 2000 $0.2027
Sample
Inventory
TL431CPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator 8 LEAD PDIP 8 626-05 Rail 50 $0.36
Sample
Inventory
TL431IDG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Rail 98 $0.2733
Sample
Inventory
TL431IDMR2G
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator Micro8™ 8 846A-02 1 Tape and Reel 4000 $0.2733
TL431IDR2G
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Tape and Reel 2500 $0.2733
Sample
Inventory
TL431ILPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Bag/Envelope 2000 $0.2733
Inventory
TL431ILPRAG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Tape and Reel 2000 $0.2733
Inventory
TL431ILPRPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Fan-Fold 2000 $0.2733
TL431IPG
Active Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator 8 LEAD PDIP 8 626-05 Rail 50 $0.38
Sample
TL431CD
Last Shipments Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Rail 98  
Rochester
Contact Sales Office
TL431CLP
Last Shipments Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Bag/Envelope 2000  
Rochester
Contact Sales Office
TL431CLPRP
Last Shipments Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator TO-92 (TO-226) 5.33mm Body Height 3 29-11 Fan-Fold 2000  
Rochester
Contact Sales Office
TL431ID
Last Shipments Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Rail 98  
Rochester
Contact Sales Office
TL431IDR2
Lifetime Adjustable 2.5-36V ±2.2% Tolerance, 1-100 mA Shunt Regulator SOIC-8 Narrow Body 8 751-07 1 Tape and Reel 2500 $0.2733
Inventory
TL431IP
Last Shipments Adjustable 2.5-36 V ±2.2% Tolerance, 1-100 mA Shunt Regulator 8 LEAD PDIP 8 626-05 Rail 50  
Rochester
Contact Sales Office
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
Arrow  (2009-11-20) : In Stock
Digi-Key  (2009-11-20) : >1K
IR Min (mA) : 1
Package : Micro8™
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
Avnet  (2009-11-20) : >10K
Digi-Key  (2009-11-20) : >1K
Future Electronics  (2009-11-20) : In Stock
P&S  (2009-11-20) : >10K
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
Avnet  (2009-11-20) : >10K
Digi-Key  (2009-11-20) : >1K
Future Electronics  (2009-11-20) : In Stock
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
Avnet  (2009-11-20) : >1K
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 4 to 8
Future Electronics  (2009-11-20) : In Stock
IR Min (mA) : 1
Package : 8 LEAD PDIP
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 2 to 4
Arrow  (2009-11-20) : In Stock
Future Electronics  (2009-11-20) : In Stock
ON Semiconductor  (2009-11-18) : 2900
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Digi-Key  (2009-11-20) : >1K
Future Electronics  (2009-11-20) : In Stock
P&S  (2009-11-20) : <100
IR Min (mA) : 1
Package : Micro8™
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
ON Semiconductor  (2009-11-18) : 4000
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Arrow  (2009-11-20) : In Stock
Avnet  (2009-11-20) : >1K
Future Electronics  (2009-11-20) : In Stock
P&S  (2009-11-20) : <1K
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Arrow  (2009-11-20) : In Stock
Avnet  (2009-11-20) : >1K
Digi-Key  (2009-11-20) : <100
Future Electronics  (2009-11-20) : In Stock
P&S  (2009-11-20) : <1K
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Future Electronics  (2009-11-20) : In Stock
P&S  (2009-11-20) : <1K
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : 8 LEAD PDIP
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 2 to 4
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : TO-92 (TO-226) 5.33mm Body Height
VF Max (V) : 36
TA Min (°C) : 0
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 70
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
IR Min (mA) : 1
Package : SOIC-8 Narrow Body
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Digi-Key  (2009-11-20) : >1K
ON Semiconductor  (2009-11-18) : 20000
IR Min (mA) : 1
Package : 8 LEAD PDIP
VF Max (V) : 36
TA Min (°C) : -40
V(BR) Typ (V) : 2.495
Tolerance (%) : 2.2
TA Max (°C) : 85
Type : Adjustable
Market Leadtime (weeks) : 12+
Selected Electrical Specifications

For full electrical specifications, see the datasheet.

Symbol Boundary Value Unit Condition
V(BR) typ 2.495
 V IK = 10 mA, TA = 25 degrees C
Tolerance 2.2
 %
IR min 1
 mA
VF max 36
 V
Type Adjustable
For complete packaging information, see the datasheet
»View Material Composition
Case Outlines
751-07    626-05    846A-02    29-11   
Packages
For complete product information, see the datasheet
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