SLLSF21D September   2018  – February  2020

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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: Driver
    10. 6.10 Electrical Characteristics: Receiver
    11. 6.11 Supply Current Characteristics: Side 1(ICC1)
    12. 6.12 Supply Current Characteristics: Side 2(ICC2)
    13. 6.13 Switching Characteristics: Driver
    14. 6.14 Switching Characteristics: Receiver
    15. 6.15 Insulation Characteristics Curves
    16. 6.16 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Electromagnetic Compatibility (EMC) Considerations
      2. 8.3.2 Failsafe Receiver
      3. 8.3.3 Thermal Shutdown
      4. 8.3.4 Glitch-Free Power Up and Power Down
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device I/O Schematics
  9. 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 and Bus Length
        2. 9.2.2.2 Stub Length
        3. 9.2.2.3 Bus Loading
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 PCB Material
    2. 11.2 Layout Example
  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 Community Resource
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

7 Parameter Measurement Information

ISO1500 iso14xx_driver_voltages_vod.gifFigure 19. Driver Voltages
ISO1500 iso14xx_driver_voltages1.gif
1. RL = 100 Ω for RS422, RL = 54 Ω for RS-485
Figure 20. Driver Voltages
ISO1500 iso14xx_driver_switching_specifications1.gif
1. CL includes fixture and instrumentation capacitance.
Figure 21. Driver Switching Specifications
ISO1500 iso14xx_common-mode-transient-imunity-half-duplex-circuit.gif
1. Includes probe and fixture capacitance.
Figure 22. Common Mode Transient Immunity (CMTI)—Half Duplex
ISO1500 iso14xx_driver_enable_disable_times1.gif
1. CL includes fixture and instrumentation capacitance
Figure 23. Driver Enable and Disable Times
ISO1500 iso14xx_driver_enable_disable_times_vcc2-1.gifFigure 24. Driver Enable and Disable Times
ISO1500 iso14xx_receiver_switching_specs.gif
1. CL includes fixture and instrumentation capacitance.
Figure 25. Receiver Switching Specifications
ISO1500 iso14xx-receiver-enable-and-disable_times-1.gifFigure 26. Receiver Enable and Disable Times
ISO1500 iso14xx-receiver-enable-and-disable_times-2.gifFigure 27. Receiver Enable and Disable Times
ISO1500 iso14xx_short_circuit_current_limiting-1.gif
1. The driver should not sustain any damage with this configuration.
Figure 28. Short-Circuit Current Limiting