SNOSDA9E June   2020  – May 2024 TLV9020-Q1 , TLV9021-Q1 , TLV9022-Q1 , TLV9024-Q1 , TLV9030-Q1 , TLV9031-Q1 , TLV9032-Q1 , TLV9034-Q1

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1. 4.1 Pin Functions: TLV90x0-Q1 and TLV90x1-Q1 Single
    2.     Pin Functions: TLV90x2-Q1 Dual
    3.     Pin Functions: TLV90x4-Q1 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, TLV90x0-Q1,TLV90x1-Q1
    5. 5.5  Thermal Information, TLV90x2-Q1
    6. 5.6  Thermal Information, TLV90x4-Q1
    7. 5.7  Electrical Characteristics, TLV90x0-Q1,TLV90x1-Q1
    8. 5.8  Switching Characteristics, TLV90x0-Q1,TLV90x1-Q1
    9. 5.9  Electrical Characteristics, TLV90x2-Q1
    10. 5.10 Switching Characteristics, TLV90x2-Q1
    11. 5.11 Electrical Characteristics, TLV90x4-Q1
    12. 5.12 Switching Characteristics, TLV90x4-Q1
    13. 5.13 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 Outputs
        1. 6.4.1.1 TLV9022-Q1 and TLV9024-Q1 Open Drain Output
        2. 6.4.1.2 TLV9032-Q1 and TLV9034-Q1 Push-Pull Output
      2. 6.4.2 Power-On Reset (POR)
      3. 6.4.3 Inputs
        1. 6.4.3.1 Rail to Rail Input
        2. 6.4.3.2 Fault Tolerant Inputs
        3. 6.4.3.3 Input Protection
      4. 6.4.4 ESD Protection
      5. 6.4.5 Unused Inputs
      6. 6.4.6 Hysteresis
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Basic Comparator Definitions
        1. 7.1.1.1 Operation
        2. 7.1.1.2 Propagation Delay
        3. 7.1.1.3 Overdrive Voltage
      2. 7.1.2 Hysteresis
        1. 7.1.2.1 Inverting Comparator With Hysteresis
        2. 7.1.2.2 Non-Inverting Comparator With Hysteresis
        3. 7.1.2.3 Inverting and Non-Inverting Hysteresis Using Open-Drain Output
    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 Square-Wave Oscillator
        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 Adjustable Pulse Width Generator
      4. 7.2.4 Time Delay Generator
      5. 7.2.5 Logic Level Shifter
      6. 7.2.6 One-Shot Multivibrator
      7. 7.2.7 Bi-Stable Multivibrator
      8. 7.2.8 Zero Crossing Detector
      9. 7.2.9 Pulse Slicer
    3. 7.3 Power Supply Recommendations
  9. 8 Layout
    1. 8.1 Layout Guidelines
    2. 8.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

7.2.1.2 Detailed Design Procedure

Configure the circuit as shown in Figure 7-7. Connect VCC to a 3.3V power supply and VEE to ground. Make R1, R2 and R3 each 10MΩ 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 2.2V and VTH- is 1.1V. Large resistor values such as 10MΩ are used to minimize power consumption. The resistor values can be recalculated to provide the desired trip point values.

The sensor output voltage is applied to the inverting and noninverting inputs of the two comparators. Using two open-drain output comparators allows the two comparator outputs to be Wire-OR'ed together.

The respective comparator outputs will be low when the sensor is less than 1.1V or greater than 2.2V. The respective comparator outputs will be high when the sensor is in the range of 1.1V to 2.2V (within the "window"), as shown in Figure 7-8.