SLUSFG5 November   2024 UCC33421-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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 Insulation Specifications
    6. 6.6 Safety-Related Certifications
    7. 6.7 Electrical Characteristics
    8. 6.8 External BOM Components
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Enable and Disable
      2. 7.3.2 Output Voltage Soft-Start
      3. 7.3.3 Output Voltage Steady-State Regulation
      4. 7.3.4 Protection Features
        1. 7.3.4.1 Input Under-voltage and Over-Voltage Lockout
        2. 7.3.4.2 Output Under-Voltage Protection
        3. 7.3.4.3 Output Over-Voltage Protection
        4. 7.3.4.4 Over-Temperature Protection
        5. 7.3.4.5 Fault Reporting and Auto-Restart
      5. 7.3.5 VCC Load Recommended Operating Area
      6. 7.3.6 Electromagnetic Compatibility (EMC) Considerations
    4. 7.4 Device Functional Modes
  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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical and Packaging Information

1 Features

  • 1.5W Maximum output power
  • 4.5V to 5.5V input voltage operation range
  • 5.0V, 5.5V regulated selectable output voltage
    • 5.0V: 300mA available load current
  • 0.5% typical load regulation
  • 2mV/V typical line regulation
  • Robust isolation barrier:
    • Isolation rating: 5kVRMS
    • Surge capability: 10.4kVPK
    • Working voltage: 1700VPK
    • ± 8KV IEC 61000-4-2 contact discharge protection across isolation barrier
    • 250V/ns common mode transient immunity
  • Power dense isolated DC/DC module with integrated transformer technology
  • Adaptive spread spectrum modulation (SSM)
  • Meets CISPR-25 Class 5 emission
  • Strong magnetic fields immunity
  • Overload and short circuit protection
  • Thermal shutdown
  • Low inrush current soft-start
  • Enable pin with fault reporting mechanism
  • Functional Safety-Capable
  • Planned Safety-related certifications:
    • Reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5kVRMS isolation for 1 minute per UL 1577 / CSA
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • SOIC-16 (5.85mm × 7.50mm) package