SLLSG02A February   2026  – March 2026 ISOW3080 , ISOW3086

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 Supply Current Characteristics at VISOOUT = 3.3 V (ISOW308x)
    11. 6.11 Supply Current Characteristics at VISOOUT = 5 V (ISOW308xP)
    12. 6.12 Switching Characteristics at VISOOUT = 3.3 V (ISOW308x)
    13. 6.13 Switching Characteristics at VISOOUT = 5 V (ISOW308xP)
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Power Isolation
    3. 8.3 Signal Isolation
    4. 8.4 RS-485
    5. 8.5 Functional Block Diagram
    6. 8.6 Feature Description
      1. 8.6.1 Power-Up and Power-Down Behavior
      2. 8.6.2 Protection Features
      3. 8.6.3 Failsafe Receiver
      4. 8.6.4 Glitch-Free Power Up and Power Down
    7. 8.7 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Data Rate, Bus Length and Bus Loading
        2. 9.2.2.2 Stub Length
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1.     PACKAGE OPTION ADDENDUM
    2. 12.1 Tape and Reel Information

7 Parameter Measurement Information

ISOW3080 ISOW3086 Driver VoltagesFigure 7-1 Driver Voltages
ISOW3080 ISOW3086 Driver Voltages
A. RL = 100Ω for RS-422, RL = 54Ω for RS-485
Figure 7-2 Driver Voltages
ISOW3080 ISOW3086 Driver Switching Specifications
A. CL includes fixture and instrumentation capacitance
Figure 7-3 Driver Switching Specifications
ISOW3080 ISOW3086 Common Mode Transient Immunity (CMTI)—Full Duplex
A. Includes probe and fixture capacitance
B. Pass-fail criteria: Device is tested in both half-duplex and full-duplex conditions. Both the signal path and power path must be in specification compliant region during the application of CMTI pulse. This means no bit flips on R, and both VISOOUT and Driver VOD must be within specifications mentioned in electrical characteristics table.
Figure 7-4 Common Mode Transient Immunity (CMTI)—Full Duplex
ISOW3080 ISOW3086 Driver Enable and Disable Times
A. CL includes fixture and instrumentation capacitance
Figure 7-5 Driver Enable and Disable Times
ISOW3080 ISOW3086 Driver Enable and Disable TimesFigure 7-6 Driver Enable and Disable Times
ISOW3080 ISOW3086 Receiver Switching Specifications
A. CL includes fixture and instrumentation capacitance
Figure 7-7 Receiver Switching Specifications
ISOW3080 ISOW3086 Receiver Enable and Disable TimesFigure 7-8 Receiver Enable and Disable Times
ISOW3080 ISOW3086 Receiver Enable and Disable TimesFigure 7-9 Receiver Enable and Disable Times
ISOW3080 ISOW3086 Short-Circuit Current Limiting
A. The driver must not sustain any damage with this configuration
Figure 7-10 Short-Circuit Current Limiting