SLLSFW9B April   2024  – January 2025 ISO7741TA-Q1 , ISO7741TB-Q1 , ISO7742TA-Q1 , ISO7742TB-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1.     Pin 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 Transformer
    10. 5.10 Electrical Characteristics—5V Supply
    11. 5.11 Supply Current Characteristics—5V Supply
    12. 5.12 Electrical Characteristics—3.3V Supply
    13. 5.13 Supply Current Characteristics—3.3V Supply
    14. 5.14 Electrical Characteristics—2.5V Supply 
    15. 5.15 Supply Current Characteristics—2.5V Supply
    16. 5.16 Switching Characteristics—5V Supply
    17. 5.17 Switching Characteristics—3.3V Supply
    18. 5.18 Switching Characteristics—2.5V Supply
    19. 5.19 Insulation Characteristics Curves
    20. 5.20 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
      1. 7.3.1 Electromagnetic Compatibility (EMC) Considerations
      2. 7.3.2 Push-Pull Converter
      3. 7.3.3 Core Magnetization
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device I/O Schematics
      2. 7.4.2 Start-Up Mode
      3. 7.4.3 Operating Mode
      4. 7.4.4 Spread Spectrum Clocking
  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 Drive Capability
        2. 8.2.2.2 LDO Selection
        3. 8.2.2.3 Diode Selection
        4. 8.2.2.4 Capacitor Selection
        5. 8.2.2.5 Transformer Selection
          1. 8.2.2.5.1 V-t Product Calculation
          2. 8.2.2.5.2 Turns Ratio Estimate
          3. 8.2.2.5.3 Recommended Transformers
      3. 8.2.3 Application Curve
        1. 8.2.3.1 Insulation Lifetime
      4. 8.2.4 System Examples
        1. 8.2.4.1 Higher Output Voltage Designs
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 PCB Material
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      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
    1. 11.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DW|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10 Revision History

Changes from Revision A (July 2024) to Revision B (January 2025)

  • Updated the numbering format for tables, figures, and cross-references throughout the documentsGo
  • Added new spins ISO7742Tx-Q1Go
  • Moved the HBM and CDM values from the Featues section to the ESD Ratings tableGo
  • Changed CMTI TYP value from 75kV/μs to 100 kV/μs in all Electrical Characteristics tablesGo
  • Added new Device ISO7742TxGo
  • Changed the tDO TYP value from 6μs to 0.1μs and the MAX value from 9μs to 0.3μs in all Switching Characteristics tablesGo

Changes from Revision * (April 2024) to Revision A (July 2024)

  • Updated the numbering format for tables, figures, and cross-references throughout the documentsGo
  • Changed minimum CMTI from 40 to 85 in all Electrical Characteristics tablesGo