SLVS543S August   2004  – May 2024 TL431 , TL431C , TL432

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Thermal Information
    4. 6.4  Recommended Operating Conditions
    5. 6.5  Electrical Characteristics, TL431C, TL432C
    6. 6.6  Electrical Characteristics, TL431I, TL432I
    7. 6.7  Electrical Characteristics, TL431Q, TL432Q
    8. 6.8  Electrical Characteristics, TL431AC, TL432AC
    9. 6.9  Electrical Characteristics, TL431AI, TL432AI
    10. 6.10 Electrical Characteristics, TL431AQ, TL432AQ
    11. 6.11 Electrical Characteristics, TL431BC, TL432BC
    12. 6.12 Electrical Characteristics, TL431BI, TL432BI
    13. 6.13 Electrical Characteristics, TL431BQ, TL432BQ
    14. 6.14 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Temperature Coefficient
    2. 7.2 Dynamic Impedance
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Open Loop (Comparator)
      2. 8.4.2 Closed Loop
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Comparator With Integrated Reference
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Basic Operation
            1. 9.2.1.2.1.1 Overdrive
          2. 9.2.1.2.2 Output Voltage and Logic Input Level
            1. 9.2.1.2.2.1 Input Resistance
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Shunt Regulator/Reference
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Programming Output/Cathode Voltage
          2. 9.2.2.2.2 Total Accuracy
          3. 9.2.2.2.3 Stability
          4. 9.2.2.2.4 Start-Up Time
        3. 9.2.2.3 Application Curve
    3. 9.3 System Examples
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Nomenclature
    2. 10.2 Related Links
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VKA Cathode Voltage(2) 37 V
IKA Continuos Cathode Current Range –100 150 mA
II(ref) Reference Input Current –0.05 10 mA
TJ Operating Junction Temperature Range 150 °C
Tstg Storage Temperature Range –65 150
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to ANODE, unless otherwise noted.