SNOU197 july   2023 TLV3607

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Recommended Equipment Setup
    2. 2.2 Board Setup
      1. 2.2.1 Power Supplies
      2. 2.2.2 Inputs
      3. 2.2.3 Outputs
      4. 2.2.4 Hysteresis
    3. 2.3 Quick-Start Procedure
  7. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials
  8. 4Additional Information
    1.     Trademarks

2.2.4 Hysteresis

The TLV3607 utilizes pins LE/HYSA and LE/HYSB to adjust the internal hysteresis of the comparator through the attachment of a external resistors R2 and R14 connecting to VEE. These resistors can be replaced accordingly to desired amount of hysteresis. A curve of hysteresis versus resistance is provided below to provide guidance in setting the desired amount.

GUID-20210630-CA0I-T5MG-VPX2-1V4B1F1DS6K8-low.svg Figure 2-5 VHYST (mV) vs. RHYST (kΩ)

The TLV3607EVM is also able to support external hysteresis for each non-inverting input. Input resistors R7 and R8 are 0-Ω resistors but can be replaced accordingly for desired amount of hysteresis. For channel A, the feedback resistor is the combination of R5 and R3. Likewise, for channel B, the feedback resistor is the combination of R10 and R11. All resistors must be populated. If no external hysteresis is required, then these optional feedback resistors can be left uninstalled.

GUID-20230524-SS0I-J4FS-567N-DSHHZVDCBMWC-low.svgFigure 2-6 Hysteresis Block Diagram