SLUSFP1B April   2025  – November 2025 UCC34141-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 Electrical Characteristics
    7. 6.7 Safety-Related Certifications
    8. 6.8 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 Power Stage Operation
        1. 7.3.1.1 VDD-COM Voltage Regulation
        2. 7.3.1.2 COM-VEE Voltage Regulation
        3. 7.3.1.3 COM-VEE Output Capability
      2. 7.3.2 Output Voltage Soft Start
      3. 7.3.3 ENA and Power-Good
      4. 7.3.4 Protection Functions
        1. 7.3.4.1 Input Undervoltage Lockout
        2. 7.3.4.2 Input Overvoltage Lockout
        3. 7.3.4.3 Output Undervoltage Protection
        4. 7.3.4.4 Output Overvoltage Protection
        5. 7.3.4.5 Over-Temperature Protection
        6. 7.3.4.6 BSW Pin Faults Protection
    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
        1. 8.2.2.1 VDD-COM Voltage Regulation
        2. 8.2.2.2 COM-VEE Voltage Regulation and Single Output Configuration
    3. 8.3 System Examples
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 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, Packaging, and Orderable Information
    1. 11.1 Packaging Information
    2. 11.2 Tape and Reel Information
    3. 11.3 Mechanical Data

1 Features

  • Fully integrated high-density isolated DC/DC module with isolation planar transformer
  • Wide input range: 5.5V to 28V (with 22V OVLO)
    • ≥ 0.6W typical output for 6V ≤ VVIN ≤ 7V, and ≥ 0.5W for VVIN = 5.5V, at TA ≤ 85°C
    • ≥ 1.3W typical output for 8V ≤ VVIN ≤ 18V, 18V ≤ VVDD-COM ≤ 20V, at TA ≤ 85°C
    • ≥ 1.5W typical output for 11V ≤ VVIN ≤ 13V, 18V ≤ VVDD-COM ≤ 20V, at TA ≤ 85°C
    • ≥1.2W typical output for 11V ≤ VVIN ≤ 13V, 15V ≤ VVDD-COM < 18V, at TA ≤ 85°C
  • Programmable (VDD – COM) output voltage
    • 15V to 20V, ≤ ±1.5% total regulation accuracy
  • Programmable (VEE – COM) output voltage
    • -2V to -8V, ≤ ±5% total regulation accuracy
  • Adaptive spread spectrum modulation (SSM)
  • Strong magnetic and radiated field immunities
  • Reduced inrush current soft-start
  • ENA pin for logic enable and programming input UVLO
  • Open-drain Power-Good for fault indicator
  • Integrated protections: UVLO, OVLO, short-circuit, OVP, UVP, and thermal shutdown.
  • < 3pF isolation capacitance
  • Static and dynamic CMTI > ±250kV/µs
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1:–40°C ≤ TA ≤ 125°C
  • Safety-related certifications (Planned):
    • Reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 / CSA component recognition program
  • 16-pin, wide body SOIC package