SLLSF86D May   2018  – August 2026 ISOW1412 , ISOW1432

PRODUCTION DATA  

  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
    11. 6.11 Supply Current Characteristics at  VISOOUT = 5 V
    12. 6.12 Switching Characteristics at VISOOUT = 3.3 V
    13. 6.13 Switching Characteristics at VISOOUT = 5 V
    14. 6.14 Insulation Characteristics Curves
    15. 6.15 Typical Characteristics
  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
    8. 8.8 Device I/O Schematics
  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
      3. 9.2.3 Insulation Lifetime
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  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

7 Parameter Measurement Information

In this section, GND1 = GNDIO, GND2 = GISOIN unless otherwise noted.
ISOW1412 ISOW1432 Driver Voltages Figure 7-1 Driver Voltages
ISOW1412 ISOW1432 Driver Voltages
A. RL = 100Ω for RS-422, RL = 54Ω for RS-485
Figure 7-2 Driver Voltages
ISOW1412 ISOW1432 Driver Switching Specifications
A. CL includes fixture and instrumentation capacitance
Figure 7-3 Driver Switching Specifications
ISOW1412 ISOW1432 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 a 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
ISOW1412 ISOW1432 Driver Enable and Disable Times
A. CL includes fixture and instrumentation capacitance
Figure 7-5 Driver Enable and Disable Times
ISOW1412 ISOW1432 Driver Enable and Disable Times Figure 7-6 Driver Enable and Disable Times
ISOW1412 ISOW1432 Receiver Switching Specifications
A. CL includes fixture and instrumentation capacitance
Figure 7-7 Receiver Switching Specifications
ISOW1412 ISOW1432 Receiver Enable and Disable Times Figure 7-8 Receiver Enable and Disable Times
ISOW1412 ISOW1432 Receiver Enable and Disable Times Figure 7-9 Receiver Enable and Disable Times
ISOW1412 ISOW1432 Short-Circuit Current Limiting
A. The driver must not sustain any damage with this configuration
Figure 7-10 Short-Circuit Current Limiting
ISOW1412 ISOW1432 GPIO Channel: Switching Characteristics Test Circuit and Voltage Waveforms
The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50kHz, 50% duty cycle, tr ≤ 3ns, tf ≤ 3ns, ZO = 50Ω. At the input, 50Ω resistor is required to terminate the input generator signal. The resistor is not required in the actual application. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 7-11 GPIO Channel: Switching Characteristics Test Circuit and Voltage Waveforms