SCDS404B March   2021  – November 2022 TMUX7411F , TMUX7412F , TMUX7413F

PRODMIX  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Thermal Information
    4. 7.4  Recommended Operating Conditions
    5. 7.5  Electrical Characteristics: Global
    6. 7.6  ±15 V Dual Supply: Electrical Characteristics
    7. 7.7  ±20 V Dual Supply: Electrical Characteristics
    8. 7.8  12 V Single Supply: Electrical Characteristics
    9. 7.9  36 V Single Supply: Electrical Characteristics
    10. 7.10 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1  On-Resistance
    2. 8.2  Turn-On and Turn-Off Time
    3. 8.3  Off-Leakage Current
    4. 8.4  On-Leakage Current
    5. 8.5  Input and Output Leakage Current Under Overvoltage Fault
    6. 8.6  Fault Response Time
    7. 8.7  Fault Recovery Time
    8. 8.8  Fault Flag Response Time
    9. 8.9  Fault Flag Recovery Time
    10. 8.10 Charge Injection
    11. 8.11 Off Isolation
    12. 8.12 Inter-Channel Crosstalk
    13. 8.13 Bandwidth
    14. 8.14 THD + Noise
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Flat ON-Resistance
      2. 9.3.2 Protection Features
        1. 9.3.2.1 Input Voltage Tolerance
        2. 9.3.2.2 Powered-Off Protection
        3. 9.3.2.3 Fail-Safe Logic
        4. 9.3.2.4 Overvoltage Protection and Detection
        5. 9.3.2.5 ESD Protection
        6. 9.3.2.6 Latch-Up Immunity
        7. 9.3.2.7 EMC Protection
      3. 9.3.3 Overvoltage Fault Flags
      4. 9.3.4 Bidirectional Operation
    4. 9.4 Device Functional Modes
      1. 9.4.1 Normal Mode
      2. 9.4.2 Fault Mode
      3. 9.4.3 Truth Tables
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

9.3.2.4 Overvoltage Protection and Detection

The TMUX7411F, TMUX7412F, and TMUX7413F detect overvoltage inputs by comparing the voltage on a source pin (Sx) with the supplies (VDD and VSS). A signal is considered overvoltage if it exceeds the supply voltages by the threshold voltage (VT).

The switch automatically turns OFF regardless of the logic controls when an overvoltage is detected. The source pin becomes high impedance and ensures only small leakage current flows through the switch. The drain pin (Dx) is left floating when the fault channel is selected by the logic control. For example, if the source voltage exceeds VDD or VSS, then the drain output is left floating and the circuit connected to the drain pin, such as RL and CL, determines the final voltage.