SLVSIV4A September   2025  – November 2025 TMUXHS221F

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Dynamic Characteristics
    7. 5.7 Timing Requirements
  7. 6 Parameter Measurement Information
    1. 6.1 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Extended 1.2V Compatibility
      2. 7.3.2 Overvoltage Protection
      3. 7.3.3 Powered-off Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Pin Functions
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application 1
    3. 8.3 Typical Application 2
      1. 8.3.1 Design Requirements
      2. 8.3.2 Detailed Design Procedure
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

7.3.2 Overvoltage Protection

The OVP of the TMUXHS221F is designed to protect the system from SBU or D+/- shorts to VBUS at the USB and USB Type-C connector. Figure 7-2 depicts a moisture short that would cause high voltage of 28V to appear on an existing USB solution that could pass through the device and damage components behind the device.

TMUXHS221F Existing Solution Being Damaged by a Short Figure 7-2 Existing Solution Being Damaged by a Short

The TMUXHS221F will open the switches and protect the rest of the system by blocking the 28V as depicted in Figure 7-3.

TMUXHS221F Protecting During a 28V Short Figure 7-3 Protecting During a 28V Short