SBOS551D March   2011  – January 2025 TLV3011-Q1 , TLV3011B-Q1 , TLV3012-Q1 , TLV3012B-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Thermal Information
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
  7. 6 Typical Characteristics
  8. 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 Open Drain Output (TLV3011-Q1 and TLV3011B-Q1)
      2. 7.4.2 Push-Pull Output (TLV3012-Q1 and TLV3012B-Q1)
      3. 7.4.3 Voltage Reference
      4. 7.4.4 Internal Hysteresis
      5. 7.4.5 TLV3011B-Q1 and TLV3012B-Q1 Fail-Safe inputs
      6. 7.4.6 TLV3011B-Q1 and TLV3012B-Q1 Power On Reset
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Adding External Hysteresis
    2. 8.2 Typical Application
      1. 8.2.1 Under-Voltage Detection
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
    3. 8.3 System Examples
      1. 8.3.1 Power-On Reset
      2. 8.3.2 Relaxation Oscillator
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.1.1 Adding External Hysteresis

For noisy input signals, the comparator output can display multiple switching as input signals move through the switching threshold. The typical hysteresis of the TLV301x-Q1 family is 6 mV (±3mV). To increase the overall hysteresis, external hysteresis can be added by connecting a small amount of feedback to the positive input. This external hysteresis adds to the internal hysteresis. Shown below is a typical topology used to introduce external hysteresis.

Equation 1. TLV3011-Q1 TLV3012-Q1 TLV3011B-Q1 TLV3012B-Q1
TLV3011-Q1 TLV3012-Q1 TLV3011B-Q1 TLV3012B-Q1 Adding External HysteresisFigure 8-2 Adding External Hysteresis

The VHYST voltage sets the value of the transition voltage required to switch the comparator output by increasing the threshold region, thereby reducing sensitivity to noise.