SLLSEU0C November   2016  – February 2020 ISO7740-Q1 , ISO7741-Q1 , ISO7742-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Simplified Schematic
  4. Revision History
  5. Description Continued
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Power Rating
    6. 7.6  Insulation Specifications
    7. 7.7  Safety-Related Certifications
    8. 7.8  Safety Limiting Values
    9. 7.9  Electrical Characteristics—5-V Supply
    10. 7.10 Supply Current Characteristics—5-V Supply
    11. 7.11 Electrical Characteristics—3.3-V Supply
    12. 7.12 Supply Current Characteristics—3.3-V Supply
    13. 7.13 Electrical Characteristics—2.5-V Supply
    14. 7.14 Supply Current Characteristics—2.5-V Supply
    15. 7.15 Switching Characteristics—5-V Supply
    16. 7.16 Switching Characteristics—3.3-V Supply
    17. 7.17 Switching Characteristics—2.5-V Supply
    18. 7.18 Insulation Characteristics Curves
    19. 7.19 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Electromagnetic Compatibility (EMC) Considerations
    4. 9.4 Device Functional Modes
      1. 9.4.1 Device I/O Schematics
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curve
        1. 10.2.3.1 Insulation Lifetime
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
      1. 12.1.1 PCB Material
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DBQ|16
  • DWW|16
  • DW|16
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 29 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). Even though the expected minimum insulation lifetime is 20 years at the specified working isolation voltage, VDE reinforced certification requires additional safety margin of 20% for working voltage and 87.5% for lifetime which translates into minimum required insulation lifetime of 37.5 years at a working voltage that's 20% higher than the specified value.  

Figure 30 shows the intrinsic capability of the isolation barrier to withstand high voltage stress over its lifetime. Based on the TDDB data, the insulation withstand capability of DW-16 package is 1500 VRMS with a lifetime of 135 years as illustrated in Figure 30. Similarly, the insulation withstand capability of DWW-16 package is 2000 VRMS with a corresponding lifetime of 34 years. DBQ-16 package at 400 VRMS working voltage has a much longer lifetime than both DW-16 and DWW-16 packages. Factors, such as package size, pollution degree, and material group can limit the working voltage of a component.

ISO7740-Q1 ISO7741-Q1 ISO7742-Q1 hv_tst_lla197.gifFigure 29. Test Setup for Insulation Lifetime Measurement
ISO7740-Q1 ISO7741-Q1 ISO7742-Q1 sllser1-insulation-lifetime-projection-data.pngFigure 30. Insulation Lifetime Projection Data