ZHCSK06F March   2005  – July 2019 TL431-Q1 , TL432-Q1

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
    1.     Device Images
      1.      简化原理图
  4. 修订历史记录
  5. Pin Configuration and Functions
    1.     Pin Functions
  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: TL43x-Q1
    6. 6.6 Electrical Characteristics: TL43xA-Q1
    7. 6.7 Electrical Characteristics: TL43xB-Q1
    8. 6.8 Typical Characteristics
  7. Parameter Measurement Information
  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
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Comparator Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Basic Operation
          2. 9.2.1.2.2 Overdrive
          3. 9.2.1.2.3 Output Voltage and Logic Input Level
          4. 9.2.1.2.4 Input Resistance
          5. 9.2.1.2.5 Deviation Parameters and Calculating Dynamic Impedance
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Other Application Circuits
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 相关链接
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DBZ|3
  • DBV|5
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

TL431-Q1 TL432-Q1 D001_SGLS302.gif
Data is for devices having the indicated value of VREF at IKA = 10 mA, TA = 25°C.
Figure 1. Reference Voltage vs Free-air Temperature
TL431-Q1 TL432-Q1 D003_SGLS302.gifFigure 3. Cathode Current vs Cathode Voltage
TL431-Q1 TL432-Q1 D005_SGLS302.gifFigure 5. OFF-State Cathode Current vs
Free-air Temperature
TL431-Q1 TL432-Q1 D007_SGLS302.gifFigure 7. Equivalent Input Noise Voltage vs Frequency
TL431-Q1 TL432-Q1 D009_SGLS302.gifFigure 9. Small-Signal Voltage Amplification vs Frequency
TL431-Q1 TL432-Q1 D011_SGLS302.gif
Figure 11. Pulse Response
TL431-Q1 TL432-Q1 D013_SGLS302.gif
The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2 and VREF were adjusted to establish the initial VKA and IKA conditions with CL = 0. VBATT and CL then were adjusted to determine the ranges of stability (see Figure 18 and Figure 19 for test circuits).
Figure 13. Stability Boundary Conditions for All TL43x, SOT-23, SC-70, and Q-TEMP Devices
TL431-Q1 TL432-Q1 D002_SGLS302.gif
Figure 2. Reference Current vs Free-air Temperature
TL431-Q1 TL432-Q1 D004_SGLS302.gifFigure 4. Cathode Current vs Cathode Voltage
TL431-Q1 TL432-Q1 D006_SGLS302.gifFigure 6. Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Free-air Temperature
TL431-Q1 TL432-Q1 D008_SGLS302.gifFigure 8. Equivalent Input Noise Voltage Over a 10-s Period
TL431-Q1 TL432-Q1 D010_SGLS302.gifFigure 10. Reference Impedance vs Frequency
TL431-Q1 TL432-Q1 D012_SGLS302.gif
The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2 and VREF were adjusted to establish the initial VKA and IKA conditions with CL = 0. VBATT and CL then were adjusted to determine the ranges of stability (see Figure 18 and Figure 19 for test circuits).
Figure 12. Stability Boundary Conditions for All TL43x Devices (Except for SOT23-3, SC-70,
and Q-TEMP Devices)