SLLSFC6B November   2021  – July 2022 ISOUSB111

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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. Parameter Measurement Information
    1. 7.1 Test Circuits
  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. 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

Overview

ISOUSB111 is a galvanically-isolated USB2.0 compliant repeater supporting Low Speed (1.5 Mbps) and Full Speed (12 Mbps) signaling rates. The device supports automatic speed and connection detection, reflection of pull-ups/pull-downs, and link power management allowing drop-in USB hub, host, peripheral and cable isolation. Most microcontrollers integrate the USB PHY, and so offer only D+ and D- bus lines as external pins. ISOUSB111 can isolate these pins from the USB bus without needing any other intervention from the microcontroller. The device also supports automatic role reversal - if after disconnect, if a new connect is detected on the Upstream facing port, then the Upstream and Downstream port definitions are reversed.

ISOUSB111 is available in basic and reinforced isolation options with isolation withstand voltage of 3000 VRMS and 5000 VRMS respectively, and with surge test voltage of 6 kVPK and 12.8 kVPK respectively. The device can operate completely off a 4.25 V to 5.5 V supply (USB VBUS power) or from local 3.3-V supply, if available, on both side 1 and side 2. This flexibility in supply voltages allows optimization for thermal performance based on power rails available in the system.