SLLSFG1B February   2020  – December 2020 ISOW7841A-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description Continued
  6. 6 Pin Configuration and Functions
  7. 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 Ratings
    6. 7.6  Insulation Specifications
    7. 7.7  Safety-Related Certifications
    8. 7.8  Safety Limiting Values
    9. 7.9  Electrical Characteristics—5-V Input, 5-V Output
    10. 7.10 Supply Current Characteristics—5-V Input, 5-V Output
    11. 7.11 Electrical Characteristics—3.3-V Input, 5-V Output
    12. 7.12 Supply Current Characteristics—3.3-V Input, 5-V Output
    13. 7.13 Electrical Characteristics—5-V Input, 3.3-V Output
    14. 7.14 Supply Current Characteristics—5-V Input, 3.3-V Output
    15. 7.15 Electrical Characteristics—3.3-V Input, 3.3-V Output
    16. 7.16 Supply Current Characteristics—3.3-V Input, 3.3-V Output
    17. 7.17 Switching Characteristics—5-V Input, 5-V Output
    18. 7.18 Switching Characteristics—3.3-V Input, 5-V Output
    19. 7.19 Switching Characteristics—5-V Input, 3.3-V Output
    20. 7.20 Switching Characteristics—3.3-V Input, 3.3-V Output
    21. 7.21 Insulation Characteristics Curves
    22. 7.22 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 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
      2. 9.3.2 Power-Up and Power-Down Behavior
      3. 9.3.3 Current Limit, Thermal Overload Protection
    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. 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 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7.22 Typical Characteristics

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VISO = 3.3 V TA = 25°C

Figure 7-3 Isolated Supply Voltage (VISO) vs Load Current (IISO)
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TA = 25°C

Figure 7-5 ISOW7841 Supply Current (ICC) vs Load Current (IISO)
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TA = 25°C

Figure 7-7 ISOW7841 Power Dissipation vs Load Current (IISO)
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No IISO load VCC = 5 V VISO = 5 V

Figure 7-9 5-V Isolated Supply Voltage (VISO) vs Free-Air Temperature
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CL = 15 pF TA = 25°C No IISO load

Figure 7-11 ISOW7841A-Q1 Supply Current vs Data Rate
GUID-F39EF6BF-17AE-4062-ACDE-8294807277BD-low.gifFigure 7-13 Power-Supply Undervoltage Threshold vs Free Air Temperature
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TA = 25°C

Figure 7-15 High-Level Output Voltage vs High-Level Output Current
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VCC = 5 V VISO = 3.3 V
Negligible undershoot and overshoot because of load transient

Figure 7-17 10-mA to 110-mA Load Transient Response
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VCC = 5 V VISO = 3.3 V
Input current spike is because of charging the input supply decoupling capacitor

Figure 7-19 Soft Start at 120-mA Load
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VCC = 5 V VISO = 5 V
Input current spike is because of charging the input supply decoupling capacitor

Figure 7-21 Soft Start at 130-mA Load
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VCC = 5 V VISO = 3.3 V

Figure 7-23 VISO Ripple Voltage at 130 mA
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VISO = 5 V TA = 25°C

Figure 7-4 Isolated Supply Voltage (VISO) vs Load Current (IISO)
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TA = 25°C

Figure 7-6 ISOW7841 Efficiency vs Load Current (IISO)
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No IISO load VCC = 5 V VISO = 3.3 V

Figure 7-8 3.3-V Isolated Supply Voltage (VISO) vs Free-Air Temperature
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VISO shorted to GND2 TA = 25°C

Figure 7-10 Short-Circuit Supply Current (ICC) and Power (P) vs Supply Voltage (VCC)
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CL = no load TA = 25°C No IISO load

Figure 7-12 ISOW7841A-Q1 Supply Current vs Data Rate
GUID-5D02FC56-B762-46E5-9926-4553A65C02CB-low.gifFigure 7-14 Propagation Delay Time vs Free-Air Temperature
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TA = 25°C

Figure 7-16 Low-Level Output Voltage vs Low-Level Output Current
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VCC = 5 V VISO = 3.3 V
Current spike is because of charging the input supply capacitor

Figure 7-18 Soft Start at 10-mA Load
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VCC = 5 V VISO = 5 V
Input current spike is because of charging the input supply decoupling capacitor

Figure 7-20 Soft Start at 10-mA Load
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VCC = 5 V VISO = 5 V

Figure 7-22 VISO Ripple Voltage at 130 mA