SLLSEM2I November   2014  – September 2026 ISO7821

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, 5V
    10. 5.10 Electrical Characteristics, 3.3V
    11. 5.11 Electrical Characteristics, 2.5V
    12. 5.12 Switching Characteristics, 5V
    13. 5.13 Switching Characteristics, 3.3V
    14. 5.14 Switching Characteristics, 2.5V
    15. 5.15 Insulation Characteristics Curves
    16. 5.16 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device I/O Schematics
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Electromagnetic Compatibility (EMC) Considerations
      3. 8.2.3 Application Performance Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 PCB Material
      2. 8.4.2 Layout Guidelines
      3. 8.4.3 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Related Documentation
      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

6 Parameter Measurement Information

ISO7821 ISO7821F Switching Characteristics Test Circuit and Voltage Waveforms
A. 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 Input Generator signal. The 50Ω resistor is not needed in actual application.
B. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 6-1 Switching Characteristics Test Circuit and Voltage Waveforms
ISO7821 ISO7821F Enable/Disable Propagation Delay Time Test Circuit and Waveform
A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 10kHz, 50% duty cycle, tr ≤ 3ns, tf ≤ 3ns, ZO = 50Ω.
B. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 6-2 Enable/Disable Propagation Delay Time Test Circuit and Waveform
ISO7821 ISO7821F Default Output Delay Time Test Circuit and Voltage Waveforms
A. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 6-3 Default Output Delay Time Test Circuit and Voltage Waveforms
ISO7821 ISO7821F Common-Mode Transient Immunity Test Circuit
A. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 6-4 Common-Mode Transient Immunity Test Circuit