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

10.2 Typical Application

One useful application that takes advantage of the TMUX13xx-Q1 features is multiplexing various physical switches in a body control module (BCM) or electronic control unit (ECU). Automotive BCMs are complex systems designed to manage numerous functions such as lighting, door locks, windows, wipers, turn signals, and many more inputs. The BCM monitors these physical switches and controls power to various loads within the vehicle. A CMOS multiplexer can be used to multiplex the inputs and minimize the number of GPIO or ADC inputs needed by an onboard MCU. Figure 10-1 shows a typical BCM system using the TMUX1308-Q1 to multiplex system inputs.

GUID-936B519C-269D-4FDF-BA25-3629537E298E-low.gifFigure 10-1 Multiplexing BCM Inputs