SNOSDA3F June   2020  – March 2023 TLV9020 , TLV9021 , TLV9022 , TLV9024 , TLV9030 , TLV9031 , TLV9032 , TLV9034

PRODMIX  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1. 5.1 Pin Functions: TLV90x0 and TLV90x1 Single
    2.     Pin Functions: TLV90x2 Dual
    3.     Pin Functions: TLV90x4 Quad
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4.     Thermal Information, TLV90x0,TLV90x1
    5. 6.4  Thermal Information, TLV90x2
    6. 6.5  Thermal Information, TLV90x4
    7. 6.6  Electrical Characteristics, TLV90x0,TLV90x1
    8. 6.7  Switching Characteristics, TLV90x0,TLV90x1
    9. 6.8  Electrical Characteristics, TLV90x2
    10. 6.9  Switching Characteristics, TLV90x2
    11. 6.10 Electrical Characteristics, TLV90x4
    12. 6.11 Switching Characteristics, TLV90x4
    13. 6.12 Typical Characteristics
  7. 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 Outputs
        1. 7.4.1.1 TLV9022 and TLV9024 Open Drain Output
        2. 7.4.1.2 TLV9032 and TLV9034 Push-Pull Output
      2. 7.4.2 Power-On Reset (POR)
      3. 7.4.3 Inputs
        1. 7.4.3.1 Rail to Rail Input
        2. 7.4.3.2 Fault Tolerant Inputs
        3. 7.4.3.3 Input Protection
      4. 7.4.4 ESD Protection
      5. 7.4.5 Unused Inputs
      6. 7.4.6 Hysteresis
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Comparator Definitions
        1. 8.1.1.1 Operation
        2. 8.1.1.2 Propagation Delay
        3. 8.1.1.3 Overdrive Voltage
      2. 8.1.2 Hysteresis
        1. 8.1.2.1 Inverting Comparator With Hysteresis
        2. 8.1.2.2 Non-Inverting Comparator With Hysteresis
        3. 8.1.2.3 Inverting and Non-Inverting Hysteresis Using Open-Drain Output
    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 Square-Wave Oscillator
        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 Adjustable Pulse Width Generator
      4. 8.2.4 Time Delay Generator
      5. 8.2.5 Logic Level Shifter
      6. 8.2.6 One-Shot Multivibrator
      7. 8.2.7 Bi-Stable Multivibrator
      8. 8.2.8 Zero Crossing Detector
      9. 8.2.9 Pulse Slicer
    3. 8.3 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.1.2 Detailed Design Procedure

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