SLVSE13J September   2017  – November 2024 TLV7031 , TLV7032 , TLV7034 , TLV7041 , TLV7042 , TLV7044

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1. 4.1 Pin Functions: TLV7031/41 Singles including "S" and "L" options
    2. 4.2 Pin Functions: TLV7032/42 Dual
    3. 4.3 Pin Functions: TLV7034/44 Quad
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information (Single)
    5. 5.5  Thermal Information (Dual)
    6. 5.6  Thermal Information (Quad)
    7. 5.7  Electrical Characteristics (Single)
    8. 5.8  Switching Characteristics (Single)
    9. 5.9  Electrical Characteristics (Dual)
    10. 5.10 Switching Characteristics (Dual)
    11. 5.11 Electrical Characteristics (Quad)
    12. 5.12 Switching Characteristics (Quad)
    13. 5.13 Timing Diagrams
    14. 5.14 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
      1. 6.4.1 Inputs
      2. 6.4.2 Internal Hysteresis
      3. 6.4.3 Output
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Inverting Comparator With Hysteresis for TLV703x
      2. 7.1.2 Non-Inverting Comparator With Hysteresis for TLV703x
    2. 7.2 Typical Applications
      1. 7.2.1 Window Comparator
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 IR Receiver Analog Front End
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curve
      3. 7.2.3 Square-Wave Oscillator
        1. 7.2.3.1 Design Requirements
        2. 7.2.3.2 Detailed Design Procedure
        3. 7.2.3.3 Application Curve
      4. 7.2.4 Quadrature Rotary Encoder
        1. 7.2.4.1 Design Requirements
        2. 7.2.4.2 Detailed Design Procedure
        3. 7.2.4.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Evaluation Module
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.2.4.2 Detailed Design Procedure

First, choose a target range of hysteresis vlaue to achieve. For this design example, 50mV of hysteresis is chosen as the target. Since the TLV7032 already has 10mV (typ) of internal hysteresis, the voltage output from the TMR Rotation Sensor must be scaled down by a factor of 5. This way, the 10mV of internal hysteresis gets scaled up by a factor of 5, resulting in 50mV of hysteresis. The minimum output HIGH level for the TMR Rotation Sensor used in Figure 47 is 5.25V. Since 5.25V is the minimum output high value, this can be used to substitute VIN from the Voltage Divider Equation in Figure 48. Since the voltage from the TMR rotation sensor needs to be scaled down by a factor of 5, the equation in Figure 48 can be rewritten as:

TLV7031 TLV7032 TLV7041 TLV7042 TLV7034 TLV7044 The above equation can be solved for using standard resistor values, where R1 = 100kΩ, and R2 = 24.9kΩ. The minimum voltage seen at the noninverting pins of the comparator when the output is HIGH is 1.05V. To make the device transition at 50% output high level, the inverting pins of the TLV7032 must be tied to a 0.525V reference.