SCDS414F december   2019  – july 2023 TMUX1308-Q1 , TMUX1309-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information: TMUX1308-Q1
    5. 7.5  Thermal Information: TMUX1309-Q1
    6. 7.6  Electrical Characteristics
    7. 7.7  Logic and Dynamic Characteristics
    8. 7.8  Timing Characteristics
    9. 7.9  Injection Current Coupling
    10. 7.10 Typical Characteristics
  9. 8 Parameter Measurement Information
    1. 8.1  On-Resistance
    2. 8.2  Off-Leakage Current
    3. 8.3  On-Leakage Current
    4. 8.4  Transition Time
    5. 8.5  Break-Before-Make
    6. 8.6  tON(EN) and tOFF(EN)
    7. 8.7  Charge Injection
    8. 8.8  Off Isolation
    9. 8.9  Crosstalk
    10. 8.10 Bandwidth
    11. 8.11 Injection Current Control
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Bidirectional Operation
      2. 9.3.2 Rail-to-Rail Operation
      3. 9.3.3 1.8 V Logic Compatible Inputs
      4. 9.3.4 Fail-Safe Logic
      5. 9.3.5 Injection Current Control
        1. 9.3.5.1 TMUX13xx-Q1 is Powered, Channel is Unselected, and the Input Signal is Greater Than VDD (VDD = 5 V, VINPUT = 5.5 V)
        2. 9.3.5.2 TMUX13xx-Q1 is Powered, Channel is Selected, and the Input Signal is Greater Than VDD (VDD = 5 V, VINPUT = 5.5 V)
        3. 9.3.5.3 TMUX13xx-Q1 is Unpowered and the Input Signal has a Voltage Present (VDD = 0 V, VINPUT = 3 V)
    4. 9.4 Device Functional Modes
    5. 9.5 Truth Tables
  11. 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 Short To Battery Protection
    3. 10.3 Power Supply Recommendations
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9.3.5.1 TMUX13xx-Q1 is Powered, Channel is Unselected, and the Input Signal is Greater Than VDD (VDD = 5 V, VINPUT = 5.5 V)

A typical CMOS switch would have an internal ESD diode to the supply pin rated for ≅30 mA that would be turned on and a series limited resistor would be needed. However, any conducted current would be injected into the supply rail potentially damaging the system, unexpectedly turning on other devices on the same supply rail, or requiring additional components for protection. The TMUX13xx-Q1 implementation also handles this scenario with a series limiting resistor; the current path, however, is now to GND which does not have the same issues as the current injected into the supply rail.