SNOSDG9 December   2024 TLV1922

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1.     Pin Configuration: TLV1921
    2.     Pin Configurations: TLV1922
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Thermal Information - Single
    4. 5.4 Thermal Information - Dual
    5. 5.5 Recommended Operating Conditions
    6. 5.6 Electrical Characteristics
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
      1. 6.4.1 Inputs
        1. 6.4.1.1 Input Voltage and Common Mode Voltage Ranges
        2. 6.4.1.2 Fail-Safe Inputs
        3. 6.4.1.3 Unused Inputs
      2. 6.4.2 Open-Drain Output
      3. 6.4.3 Reference Output
      4. 6.4.4 Power-On Reset (POR)
      5. 6.4.5 Internal 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 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
    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 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 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

7.1.1.1 Operation

The basic comparator compares the input voltage (VIN) on one input to a reference voltage (VREF) on the other input. In the Figure 7-1 example below, if VIN is less than VREF, the output voltage (VO) is logic low (VOL). If VIN is greater than VREF, the output voltage (VO) is at logic high (VOH). Table 7-1 summarizes the output conditions. The output logic can be inverted by simply swapping the input pins.

If IN- is equal to IN+, the output state is technically indeterminite and output state is determined by the random polarity of the internal offset votlage. This condition is commonly seen when wiring the inputs directly across a low value shunt resistor at zero shunt load current.

Table 7-1 Output Conditions
Inputs ConditionOutput
IN+ > IN-HIGH (VOH)
IN+ = IN-Indeterminate (chatters - see Hysteresis)
IN+ < IN-LOW (VOL)