SLLSFC5D November   2021  – April 2025 ISOUSB211

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  HS Message Traffic
      9. 7.3.9  Equalization and Pre-emphasis
      10. 7.3.10 L2 Power Management State (Suspend) and Resume
      11. 7.3.11 L1 Power Management State (Sleep) and Resume
      12. 7.3.12 HS Test Mode Support
      13. 7.3.13 CDP Advertising
    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
      5. 8.1.5 Meeting USB 2.0 HS Eye-Diagram Specifications
    2. 8.2 Thermal Considerations
      1. 8.2.1 VBUS / V3P3V Power
      2. 8.2.2 VCCx / V1P8Vx Power
      3. 8.2.3 Example Configuration 1
      4. 8.2.4 Example Configuration 2
      5. 8.2.5 Example Configuration 3
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Layout Example
        2. 8.4.1.2 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

Package Options

Mechanical Data (Package|Pins)
  • DP|28
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.4 Device Functional Modes

Function Table lists the functional modes for the ISOUSB211 device.

Table 7-1 Function Table
SIDE 1 SUPPLY
VBUS1, V3P3V1
VCC1, V1P8V1(1)		 BUS1
(UD+, UD-)		 SIDE 2 SUPPLY
VBUS2, V3P3V2
VCC2, V1P8V2		 BUS2
(DD+, DD-)		 COMMENTS
Powered Active Powered Active When both sides are powered, the state-of the bus is reflected correctly from upstream to downstream and reciprocally.
Powered 15-kΩ PD Powered 15-kΩ PD Disconnected state is presented on both upstream and downstream
Powered 15-kΩ PD Unpowered Z If a side is not powered, the bus lines on that side are in high-impedance state.
Unpowered Z Powered 15-kΩ PD
Unpowered Z Unpowered Undetermined
(1) Powered =( (VBUSx ≥ UV+(VBUSx)) || (VBUSx = V3P3Vx ≥ UV+(V3P3Vx)) ) & ( (VCCx ≥ UV+(VCCx)) || (VCCx = V1P8Vx ≥ UV+(V1P8Vx)) ); Unpowered = ( (VBUSx < UV-(VBUSx)) & (V3P3Vx < UV-(V3P3Vx)) ) || ( (VCCx < UV-(VCCx)) & (V1P8Vx < UV-(V1P8Vx)) ); X = Irrelevant; H = High level; L = Low level; Z = High impedance