JAJSHC3A May   2019  – November 2019 TL431LI-Q1 , TL432LI-Q1

PRODUCTION DATA.  

  1. 特長
  2. アプリケーション
  3. 概要
    1.     Device Images
      1.      概略回路図
  4. 改訂履歴
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. Parameter Measurement Information
    1. 8.1 Temperature Coefficient
    2. 8.2 Dynamic Impedance
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
      1. 9.4.1 Open Loop (Comparator)
      2. 9.4.2 Closed Loop
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Comparator With Integrated Reference
      2. 10.2.2 Design Requirements
      3. 10.2.3 Detailed Design Procedure
        1. 10.2.3.1 Basic Operation
          1. 10.2.3.1.1 Overdrive
        2. 10.2.3.2 Output Voltage and Logic Input Level
          1. 10.2.3.2.1 Input Resistance
      4. 10.2.4 Application Curves
      5. 10.2.5 Precision LED Lighting Current Sink Regulator
        1. 10.2.5.1 Design Requirements
        2. 10.2.5.2 Detailed Design Procedure
          1. 10.2.5.2.1 Basic Operation
            1. 10.2.5.2.1.1 Output Current Range and Accuracy
          2. 10.2.5.2.2 Power Consumption
      6. 10.2.6 Shunt Regulator/Reference
        1. 10.2.6.1 Design Requirements
        2. 10.2.6.2 Detailed Design Procedure
          1. 10.2.6.2.1 Programming Output/Cathode Voltage
          2. 10.2.6.2.2 Total Accuracy
          3. 10.2.6.2.3 Stability
          4. 10.2.6.2.4 Start-up Time
        3. 10.2.6.3 Application Curves
      7. 10.2.7 Isolated Flyback with Optocoupler
        1. 10.2.7.1 Design Requirements
        2. 10.2.7.2 Detailed Design Procedure
          1. 10.2.7.2.1 TL431 Feedback Loop Error Calculation
    3. 10.3 System Examples
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13デバイスおよびドキュメントのサポート
    1. 13.1 デバイス・サポート
      1. 13.1.1 デバイスの項目表記
    2. 13.2 ドキュメントのサポート
      1. 13.2.1 関連資料
    3. 13.3 関連リンク
    4. 13.4 ドキュメントの更新通知を受け取る方法
    5. 13.5 サポート・リソース
    6. 13.6 商標
    7. 13.7 静電気放電に関する注意事項
    8. 13.8 Glossary
  14. 14メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ(パッケージ|ピン)
サーマルパッド・メカニカル・データ
発注情報

Typical Characteristics

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

TL431LI-Q1 TL432LI-Q1 D001VrefvsTemp2.gifFigure 1. Reference Voltage versus Free-Air Temperature
TL431LI-Q1 TL432LI-Q1 D003VkavsIkaTL431.gifFigure 3. Cathode Current versus Cathode Voltage
TL431LI-Q1 TL432LI-Q1 D0006deltav.gifFigure 5. Ratio of Delta Reference Voltage to Delta Cathode Voltage versus Free-Air Temperature
TL431LI-Q1 TL432LI-Q1 tc_4_2_lvs543.gifFigure 7. Test Circuit for Voltage Amplification
TL431LI-Q1 TL432LI-Q1 tc_4_4_lvs543.gif
Figure 9. Test Circuit for Reference Impedance
TL431LI-Q1 TL432LI-Q1 tc_5_2_lvs543.gif
Figure 11. Test Circuit for Pulse Response
TL431LI-Q1 TL432LI-Q1 tc_6_2_lvs543.gifFigure 13. Test Circuits for Stability Boundary Conditions
TL431LI-Q1 TL432LI-Q1 D002IrefvsTemp.gifFigure 2. Reference Current versus Free-Air Temperature
TL431LI-Q1 TL432LI-Q1 D004Ioff.gifFigure 4. Off-State Cathode Current
versus Free-Air Temperature
TL431LI-Q1 TL432LI-Q1 GainandPhase_v2.gifFigure 6. Small-Signal Voltage Amplification
versus Frequency
TL431LI-Q1 TL432LI-Q1 D005Zkavsf.gifFigure 8. Reference Impedance versus Frequency
TL431LI-Q1 TL432LI-Q1 pulseresponse.gifFigure 10. Pulse Response
TL431LI-Q1 TL432LI-Q1 TL431_Stability.gif
The areas under the curves represent conditions that may cause the device to oscillate. For curves B and C, R2 and V+ are adjusted to establish the initial VKA and IKA conditions, with CL = 0. VBATT and CL then are adjusted to determine the ranges of stability.
Figure 12. Stability Boundary Conditions for All TL431LI-Q1, TL432LI-Q1 Devices