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

6.4.3.2 Fault Tolerant Inputs

The TLV90xx-Q1 inputs are fault tolerant up to 5.5V independent of VS. Fault tolerant is defined as maintaining the same high input impedance when VS is unpowered or within the recommended operating ranges.

The fault tolerant inputs can be any value between 0 V and 5.5V, even while VS is zero or ramping up or down. This feature avoids power sequencing issues as long as the input voltage range and supply voltage are within the specified ranges. This is possible since the inputs are not clamped to V+ and the input current maintains its value even when a higher voltage is applied to the inputs.

As long as one of the input pins remains within the valid input range, and the supply voltage is valid and not in POR, the output state will be correct.

The following is a summary of input voltage excursions and their outcomes:

  1. When both IN- and IN+ are within the specified input voltage range:
    1. If IN- is higher than IN+ and the offset voltage, the output is low.
    2. If IN- is lower than IN+ and the offset voltage, the output is high.
  2. When IN- is higher than the specified input voltage range and IN+ is within the specified voltage range, the output is low.
  3. When IN+ is higher than the specified input voltage range and IN- is within the specified input voltage range, the output is high
  4. When IN- and IN+ are both outside the specified input voltage range, the output is indeterminate (random). Do not operate in this region.

Even with the fault tolerant feature, TI strongly recommends keeping the inputs within the specified input voltage range during normal system operation to maintain datasheet specifications. Operating outside the specified input range can cause changes in specifications such as propagation delay and input bias current, which can lead to unpredictable behavior.