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

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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. 7 Parameter Measurement Information
  8. 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. 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

9.2.2 Other Application Circuits

Figure 28 to Figure 40 show application circuit examples using the TL431-Q1 device. Customers must fully validate and test any circuit before implementing a design based on an example in this section. Unless otherwise noted, the design procedures in Comparator Application are applicable.

TL431-Q1 TL432-Q1 shunt_reg_SGLS302.gif
A. R must provide cathode current ≥1 mA to the TL431-Q1 at minimum VI(BATT).
Figure 28. Shunt Regulator
TL431-Q1 TL432-Q1 and_eq_precis_high_current_SGLS302.gif
A. R must provide cathode current ≥1 mA to the TL431-Q1 at minimum VI(BATT).
Figure 30. Precision High-Current Series Regulator
TL431-Q1 TL432-Q1 high_current_shunt_reg_SGLS302.gifFigure 32. High-Current Shunt Regulator
TL431-Q1 TL432-Q1 prec_5v_regualtor_SGLS302.gifFigure 34. Precision 5-V, 1.5-A Regulator
TL431-Q1 TL432-Q1 single_supply_comp_SGLS302.gifFigure 29. Single-Supply Comparator with Temperature-Compensated Threshold
TL431-Q1 TL432-Q1 output_control_SGLS302.gifFigure 31. Output Control of a Three-Terminal Fixed Regulator
TL431-Q1 TL432-Q1 crowbar_cir_SGLS302.gif
1. See Figure 12 and Figure 13 to determine allowable values for C.
Figure 33. Crowbar Circuit
TL431-Q1 TL432-Q1 eff_5v_prec_regu_SGLS302.gif
1. Rb must provide cathode current ≥1 mA to the TL431-Q1.
Figure 35. Efficient 5-V Precision Regulator
TL431-Q1 TL432-Q1 PWM_converter_SGLS302.gifFigure 36. PWM Converter with Reference
TL431-Q1 TL432-Q1 delay_timer_SGLS302.gifFigure 38. Delay Timer
TL431-Q1 TL432-Q1 prec_const_curr_sink_SGLS302.gifFigure 40. Precision Constant-Current Sink
TL431-Q1 TL432-Q1 Volt_mon_SGLS302.gif
A. R3 and R4 are selected to provide the desired LED intensity and cathode current ≥1 mA to the TL431-Q1 at the available VI(BATT).
Figure 37. Voltage Monitor
TL431-Q1 TL432-Q1 po_scaled_cps125_yzppackage.gifFigure 39. Precision Current Limiter