SLLSFC6D November   2021  – January 2023 ISOUSB111

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  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Switching Characteristics
    11. 6.11 Insulation Characteristics Curves
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Circuits
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Supply Options
      2. 8.3.2 Power Up
      3. 8.3.3 Symmetric Operation, Dual-Role Port and Role-Reversal
      4. 8.3.4 Connect and Speed Detection
      5. 8.3.5 Disconnect Detection
      6. 8.3.6 Reset
      7. 8.3.7 LS/FS Message Traffic
      8. 8.3.8 L2 Power Management State (Suspend) and Resume
      9. 8.3.9 L1 Power Management State (Sleep) and Resume
    4. 8.4 Device Functional Modes
  9. 9 Power Supply Recommendations
  10. 10Application and Implementation
    1. 10.1 Typical Application
      1. 10.1.1 Isolated Host or Hub
      2. 10.1.2 Isolated Peripheral - Self-Powered
      3. 10.1.3 Isolated Peripheral - Bus-Powered
      4. 10.1.4 Application Curve
        1. 10.1.4.1 Insulation Lifetime
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Layout Example
      2. 11.1.2 PCB Material
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

Package Options

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

8.3.1 Power Supply Options

The ISOUSB111 can be powered by connecting a 4.25 V to 5.5 V supply on VBUSx pins, in which case an internal LDO generates V3P3Vx voltage. This option is suitable for the side facing the USB connector, where a 5-V VBUS supply is available. Alternatively, VBUSx and V3P3Vx pins can be shorted together and an external 3.3-V power supply can be connected to both. This second option is suitable for the side facing the microcontroller, where a 5-V supply may not be available.