SLVSF13A March   2019  – August 2021 TL7700-SEP

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Sense-Voltage Setting
      2. 8.3.2 Sense-Voltage Hysteresis Setting
      3. 8.3.3 Output Pulse-Duration Setting
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

8.3.2 Sense-Voltage Hysteresis Setting

If the desired sense voltage (Vs') does not have hysteresis in it and the voltage on the sensing line contains ripples, the resetting of TL7700-SEP will be unstable. Hysteresis is added to the sense voltage to prevent such problems. As shown in Figure 8-2, the hysteresis (Vhys) is added and the value is determined as:

Equation 2. Vhys = Is × R1

where

  • Is = 1 μA to 3.5 μA over temperature range
GUID-0886E5A8-E9CD-4390-9AAF-183A329DE3B8-low.gif
The desired sense voltage (Vs') is different from the SENSE input voltage (Vs). Vs is typically 500 mV for triggering.
Figure 8-2 VCC-RESET Response