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

3 Description

The TLV1921 and TLV1922 are a family of single and dual 65V comparators with an integrated 2.5V reference that is externally accessible. The inputs are fail-safe tolerant up to 65V independent of the supply voltage. This makes the comparators well suited for 12V and 24V industrial systems where operating voltage compliance to 65V is required. Likewise, the fail-safe inputs eliminate power supply sequencing concerns.

The single and dual channel options have an externally available 2.5V reference output and undedicated comparator inputs allowing for inverting and non-inverting configurations. The dual also has an externally available 2.5V refernce output which is internally connected to the non-inverting input of the first comparator. The dual configuration enables window comparator applications or dual channel over-voltage detection.

All devices include a Power-On Reset (POR) feature that sets the output to a known state until the minimum supply voltage has been reached and the output responds to the inputs, thus preventing false outputs during system power-up and power-down.

The Family of comparators have an open-drain output stage that is 65V compliant.

Device Information
PART NUMBERPACKAGE(1)BODY SIZE (NOM) (2)

TLV1921

SOIC (8) (Preview)3.91mm × 4.90mm

SC-70 (6) (Preview)

2.00mm × 1.25mm

TLV1922

SOIC (8) (Preview)3.91mm × 4.90mm
WSON (8)2.00mm × 2.00mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TLV1921 TLV1922 Simplified Block DiagramSimplified Block Diagram