ZHCSHT8Y July   1996  – March 2024 TLV431 , TLV431A , TLV431B

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics for TLV431
    6. 5.6 Electrical Characteristics for TLV431A
    7. 5.7 Electrical Characteristics for TLV431B
    8. 5.8 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Open Loop (Comparator)
      2. 7.4.2 Closed Loop
  9. Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Comparator with Integrated Reference (Open Loop)
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Basic Operation
          2. 8.2.1.2.2 Overdrive
          3. 8.2.1.2.3 Output Voltage and Logic Input Level
            1. 8.2.1.2.3.1 Input Resistance
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Shunt Regulator/Reference
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Programming Output/Cathode Voltage
          2. 8.2.2.2.2 Total Accuracy
          3. 8.2.2.2.3 Stability
        3. 8.2.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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
  • PK|3
  • DCK|6
  • LP|3
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

Operation of the device at these or any other conditions beyond those indicated in the Recommended Operating Conditions table are not implied.

GUID-70FDE77A-A12E-49FC-B4F7-7FB87DD89833-low.pngFigure 5-1 Reference Voltage vs Junction Temperature
GUID-0E735165-F199-432B-BF84-06434855A6C7-low.pngFigure 5-3 Reference Input Current vs Junction Temperature (for TLV431B)
GUID-0DE66D28-BE50-4F16-A57F-B9BD867BAE8D-low.pngFigure 5-5 Minimum Cathode Current vs Temperature
GUID-B262E988-0D1F-4495-9FD3-A6CB5A516740-low.pngFigure 5-7 Off-State Cathode Current vs Junction Temperature (for TLV431 and TLV431A)
GUID-9F0A9390-50F3-4BE8-9A33-9456D778002F-low.pngFigure 5-9 Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Junction Temperature (for TLV431 and TLV431A)

‡Extrapolated from Life-test Data Taken at 125°C; the Activation Energy Assumed Is 0.7 eV.

GUID-B4ED74FE-1207-4C94-8BC8-CC5CA83F5AD0-low.pngFigure 5-11 Percentage Change in vREF vs Operating Life at 55°C
GUID-6C98AA5E-EF0F-42FC-8F43-B9D4E2240F77-low.pngFigure 5-2 Reference Input Current vs Junction Temperature (for TLV431 and TLV431A)
GUID-8605798F-036B-4B7E-AF66-08B6A14CE366-low.pngFigure 5-4 Cathode Current vs Cathode Voltage
GUID-CD9E394B-B56F-49C6-B8CC-C3B893E119FB-low.pngFigure 5-6 Cathode Current vs Cathode Voltage
GUID-5E4DD13E-260D-4015-91CB-26C0E2447EB9-low.pngFigure 5-8 Off-State Cathode Current vs Junction Temperature (for TLV431B)
GUID-FB2AB701-3C23-450D-B26D-05D0FA1894CD-low.pngFigure 5-10 Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Junction Temperature (for TLV431B)
GUID-3DE7FD6B-6D95-4ADE-BDFC-87D7C0A76DBE-low.pngFigure 5-12 Equivalent Input Noise Voltage
GUID-75BE4EBC-7AB3-4F47-9DE8-C37C7ACB5E3F-low.pngFigure 5-13 Equivalent Noise Voltage over a 10S Period
GUID-C9E245BC-51F7-4BA2-94B5-70951CB3F6FA-low.pngFigure 5-14 Voltage Gain and Phase Margin
GUID-981BDF87-8796-4FDB-9D52-214292FC31D7-low.pngFigure 5-15 Reference Impedance vs Frequency
GUID-7F1188CD-9ADD-4BE4-ADF9-560DFB7EBACC-low.pngFigure 5-16 Pulse Response 1
GUID-EF7AA72A-D15A-4D92-89F0-5C8F84C9EEBD-low.pngFigure 5-17 Pulse Response 2
GUID-DF3328E7-9A61-4A60-A05F-3BB61744E073-low.png
The areas under the curves represent conditions that can cause the device to oscillate. For VKA = 2V and 3V curves, R2 and Vbat were adjusted to establish the initial VKA and IK conditions with CL = 0. Vbat and CL then were adjusted to determine the ranges of stability.
Figure 5-18 Stability Boundary Conditions
GUID-245D0411-D9CF-480C-8301-3E945403AA1F-low.pngFigure 5-19 Phase Margin vs Capacitive Load vKA = VREF (1.25V), TA= 25°C
GUID-4E38C448-17EC-45E8-BF82-E69441C8BBAC-low.pngFigure 5-20 Phase Margin vs Capacitive Load vKA = 2.50V, TA= 25°C
GUID-47CB97E3-E6A2-47CF-A10F-A155712D2280-low.pngFigure 5-21 Phase Margin vs Capacitive Load vKA = 5.00V, TA= 25°C