ZHCSGV4H September   2017  – July 2021 TLV7031 , TLV7032 , TLV7034 , TLV7041 , TLV7042 , TLV7044

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
    2.     Pin Functions: TLV7032/42
    3.     Pin Functions: TLV7034/44
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information (Single)
    5. 6.5  Thermal Information (Dual)
    6. 6.6  Thermal Information (Quad)
    7. 6.7  Electrical Characteristics (Single)
    8. 6.8  Switching Characteristics (Single)
    9. 6.9  Electrical Characteristics (Dual)
    10. 6.10 Switching Characteristics (Dual)
    11. 6.11 Electrical Characteristics (Quad)
    12. 6.12 Switching Characteristics (Quad)
    13. 6.13 Timing Diagrams
    14. 6.14 Typical Characteristics
  7. 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 Inputs
      2. 7.4.2 Internal Hysteresis
      3. 7.4.3 Output
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Inverting Comparator With Hysteresis for TLV703x
      2. 8.1.2 Noninverting Comparator With Hysteresis for TLV703x
    2. 8.2 Typical Applications
      1. 8.2.1 Window Comparator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 IR Receiver Analog Front End
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
      3. 8.2.3 Square-Wave Oscillator
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curve
      4. 8.2.4 Quadrature Rotary Encoder
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Detailed Design Procedure
        3. 8.2.4.3 Application Curve
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Module
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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Detailed Design Procedure

Configure the circuit as shown in Figure 8-3. Connect VCC to a 3.3-V power supply and VEE to ground. Make R1, R2, and R3 each 10-MΩ resistors. These three resistors are used to create the positive and negative thresholds for the window comparator (VTH+ and VTH–). With each resistor being equal, VTH+ is 2.2 V and VTH- is 1.1 V. Large resistor values such as 10 MΩ are used to minimize power consumption. The sensor output voltage is applied to the inverting and noninverting inputs of the two TLV704x devices. The TLV704x is used for its open-drain output configuration. Using the TLV704x allows the two comparator outputs to be wire-ored together. The respective comparator outputs are low when the sensor is less than 1.1 V or greater than 2.2 V. VOUT is high when the sensor is in the range of 1.1 V to 2.2 V.