SLLSFC6E November   2021  – July 2025 ISOUSB111

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  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety-Related Certifications
    8. 5.8  Safety Limiting Values
    9. 5.9  Electrical Characteristics
    10. 5.10 Switching Characteristics
    11. 5.11 Insulation Characteristics Curves
    12. 5.12 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Test Circuits
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Supply Options
      2. 7.3.2 Power Up
      3. 7.3.3 Symmetric Operation, Dual-Role Port, and Role-Reversal
      4. 7.3.4 Connect and Speed Detection
      5. 7.3.5 Disconnect Detection
      6. 7.3.6 Reset
      7. 7.3.7 LS/FS Message Traffic
      8. 7.3.8 L2 Power Management State (Suspend) and Resume
      9. 7.3.9 L1 Power Management State (Sleep) and Resume
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Isolated Host or Hub
      2. 8.1.2 Isolated Peripheral - Self-Powered
      3. 8.1.3 Isolated Peripheral - Bus-Powered
      4. 8.1.4 Application Curve
        1. 8.1.4.1 Insulation Lifetime
    2. 8.2 Power Supply Recommendations
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
        1. 8.3.1.1 Layout Example
        2. 8.3.1.2 PCB Material
  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
    1. 11.1 Tape and Reel Information

3 Description

ISOUSB111 is a galvanically-isolated USB 2.0 compliant repeater supporting low speed (1.5Mbps) and full speed (12Mbps) signaling rates. The device supports automatic connect and speed detection, reflection of pull-ups/pull-downs, and link power management allowing drop-in USB hub, host, peripheral and cable isolation. The device also supports automatic role reversal - if after disconnect, a new connect is detected on the Upstream facing port, then the Upstream and Downstream port definitions are reversed. This feature enables the device to support USB On-The-Go (OTG) and Type-C Dual Role Port (DRP) implementations. This device uses a silicon dioxide (SiO2) insulation barrier with a withstand voltage of up to 5000VRMS and a working voltage of 1500VRMS. Used in conjunction with isolated power supplies, the device protects against high voltage, and prevents noise currents from the bus from entering the local ground. The ISOUSB111 device is available for reinforced isolation. The device supports a wide ambient temperature range of –40°C to 125°C. The device is available in the standard SOIC-16 (16-DW) package and a smaller SSOP-16 (16-DWX) package.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
ISOUSB111 SOIC (16) DW 10.30mm × 7.50mm
SSOP (16) DWX 5.85mm × 7.50mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
Device Information
PART NUMBER FEATURE RATING
ISOUSB111(1) Protection Level Reinforced
Surge Isolation Voltage 12800VPK
Isolation Rating 5000VRMS
Isolation Working Voltage 1500VRMS /
2121VPK
(1) Reinforced Isolation Option.