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  • UCC33420-Q1 Ultra-Small, 1.5W, 5.0V, 3kVRMS Isolation, Automotive DC/DC Module

    • SLUSF93E January   2024  – December 2024 UCC33420-Q1

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  • UCC33420-Q1 Ultra-Small, 1.5W, 5.0V, 3kVRMS Isolation, Automotive DC/DC Module
  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  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Typical Characteristics
  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
      1. 9.1.1 Third-Party Products Disclaimer
    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
  13. IMPORTANT NOTICE
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Data Sheet

UCC33420-Q1 Ultra-Small, 1.5W, 5.0V, 3kVRMS Isolation, Automotive DC/DC Module

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
  • 4mV/V typical line regulation
  • Robust isolation barrier:
    • Isolation rating: 3kVRMS
    • Surge capability: 6.5kVPK
    • Working voltage: 1159VPK
    • 200V/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
  • Planned Safety-Related Certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 / CSA component recognition program
    • IEC 62368-1 and IEC 60601-1 certifications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • VSON-12 (4.00mm × 5.00mm) package

2 Applications

  • Battery-Management Systems (BMS)
  • HEV/EV OBC and DC/DC converter
  • Isolated power for voltage and current sensors
  • Isolated bias power for digital isolators
  • Isolated bias power for RS-485, RS-422 and CAN

3 Description

UCC33420-Q1 is an automotive qualified DC/DC power module with integrated transformer technology designed to provide 1.5W of isolated output power. It can support an input voltage operation range of 4.5V to 5.5V and regulate 5.0V output voltage with a selectable headroom of 5.5V.

UCC33420-Q1 features a proprietary transformer architecture that achieves a 3kVRMS isolation rating, while simultaneously supporting low EMI and excellent load regulation.

The UCC33420-Q1 integrates protection features for increased system robustness such as enable pin with fault reporting mechanism, short circuit protection and thermal shutdown.

The UCC33420-Q1 comes in a miniaturized, low-profile VSON (4.00mm × 5.00mm) package with 1.00mm height and > 4.1mm clearance and creepage.

Device Information
PART NUMBER PACKAGE(1) BODY SIZE (NOM)
UCC33420-Q1 RAQ VSON-FCRLF 12 4.00mm × 5.00mm
(1) For all available packages, see Section 11.
UCC33420-Q1 Simplified ApplicationSimplified Application

 
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