SNVSCR4B July   2024  – November 2025 TLA431 , TLA432

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 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 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 Closed Loop
        1. 8.4.1.1 Stability (Closed Loop)
      2. 8.4.2 Open Loop (Comparator)
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Shunt Regulator/Reference
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Programming Output/Cathode Voltage
          2. 9.2.1.2.2 Total Accuracy
          3. 9.2.1.2.3 Start-Up Time
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Comparator With Integrated Reference
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Basic Operation
            1. 9.2.2.2.1.1 Overdrive
          2. 9.2.2.2.2 Output Voltage and Logic Input Level
            1. 9.2.2.2.2.1 Input Resistance
        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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.6 Typical Characteristics

Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.

TLA431 TLA432 Reference Voltage vs Free-Air TemperatureFigure 6-1 Reference Voltage vs Free-Air Temperature
TLA431 TLA432 Cathode Current vs Cathode VoltageFigure 6-3 Cathode Current vs Cathode Voltage
TLA431 TLA432 Small-Signal Voltage Amplification vs FrequencyFigure 6-5 Small-Signal Voltage Amplification vs Frequency
TLA431 TLA432 Reference Impedance vs FrequencyFigure 6-7 Reference Impedance vs Frequency
TLA431 TLA432 Pulse ResponseFigure 6-9 Pulse Response
TLA431 TLA432 Stability Boundary ConditionsFigure 6-11 Stability Boundary Conditions
TLA431 TLA432 Cathode Current vs Cathode VoltageFigure 6-2 Cathode Current vs Cathode Voltage
TLA431 TLA432 Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Free-Air TemperatureFigure 6-4 Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Free-Air Temperature
TLA431 TLA432 Test Circuit for Voltage AmplificationFigure 6-6 Test Circuit for Voltage Amplification
TLA431 TLA432 Test Circuit for Reference ImpedanceFigure 6-8 Test Circuit for Reference Impedance
TLA431 TLA432 Test Circuit for Pulse ResponseFigure 6-10 Test Circuit for Pulse Response
TLA431 TLA432 Test Circuit for Stability Boundary ConditionsFigure 6-12 Test Circuit for Stability Boundary Conditions