SLLSFN3 June   2022 ISO7041-Q1

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
    1.     Device Comparison Table
  5. Pin Configuration and Functions
  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.     Insulation Specifications
    7. 6.6  Safety-Related Certifications
    8. 6.7  Safety Limiting Values
    9. 6.8  Electrical Characteristics 5V Supply
    10. 6.9  Supply Current Characteristics 5V Supply
    11. 6.10 Electrical Characteristics 3.3V Supply
    12. 6.11 Supply Current Characteristics 3.3V Supply
    13. 6.12 Switching Characteristics
    14. 6.13 Insulation Characteristics Curves
    15. 6.14 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Refresh
      2. 8.3.2 Electromagnetic Compatibility (EMC) Considerations
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device I/O Schematics
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Insulation Lifetime
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  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 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Insulation Lifetime

Insulation lifetime projection data is collected by using industry-standard Time Dependent Dielectric Breakdown (TDDB) test method. In this test, all pins on each side of the barrier are tied together creating a two-terminal device and high voltage applied between the two sides; see Figure 9-1 for TDDB test setup. The insulation breakdown data is collected at various high voltages switching at 60 Hz over temperature. For reinforced insulation, VDE standard requires the use of TDDB projection line with failure rate of less than 1 part per million (ppm) and a minimum insulation lifetime of 20 years. VDE standard also requires additional safety margin of 20% for working voltage and 87.5% for insulation lifetime which translates into minimum required life time of 37.5 years.  

Figure 9-2 shows the intrinsic capability of the isolation barrier to withstand high voltage stress over its lifetime. Based on the TDDB data, the intrinsic capability of these devices is 400 VRMS with a lifetime of >100 years. Other factors, such as package size, pollution degree, material group, and so forth can further limit the working voltage of the component. The working voltage of the DBQ-16 package specified up to 400 VRMS. At the lower working voltages, the corresponding insulation barrier life time is much longer.

GUID-CD0E4A51-7F7D-4461-B9D4-D2681A692059-low.gifFigure 9-1 Test Setup for Insulation Lifetime Measurement
GUID-5596C195-B5B0-44B3-A7DE-4F6C2C3C226E-low.pngFigure 9-2 Insulation Lifetime Projection Data