SLUSDX3B November   2020  – November 2021 UCC25800-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Management
      2. 7.3.2 Oscillator
      3. 7.3.3 External Synchronization
      4. 7.3.4 Dead-Time
        1. 7.3.4.1 Adaptive Dead-time
        2. 7.3.4.2 Maximum Programmable Dead-time
      5. 7.3.5 Protections
        1. 7.3.5.1 Overcurrent Protection
          1. 7.3.5.1.1 OCP Threshold Setting
          2. 7.3.5.1.2 Output Power Capability
        2. 7.3.5.2 Input Overvoltage Protection (OVP)
        3. 7.3.5.3 Over-Temperature Protection (TSD)
        4. 7.3.5.4 Pin-Fault Protections
        5. 7.3.5.5 VREG Pin Protection
      6. 7.3.6 DIS/FLT Pin operation
        1. 7.3.6.1 FAULT Codes
    4. 7.4 Device Functional Modes
      1. 7.4.1 UVLO Mode
      2. 7.4.2 Soft-start Mode
      3. 7.4.3 Normal Operation Mode
      4. 7.4.4 Disabled Mode
      5. 7.4.5 Fault Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 LLC Converter Operation Principle
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Curves
    3. 8.3 What to Do and What Not to Do
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • High-efficiency half-bridge transformer driver
  • Ultra-low EMI with low interwinding capacitance
  • Smaller and lower-cost transformer
    • Programmable frequency: 0.1 MHz to 1.2 MHz
  • Wide input voltage range: 9 V to 34 V
    • 9 W from 34-V input
    • 6 W from 24-V input
    • 4 W from 15-V input
  • Automatic dead-time adjustment with maximum dead-time programming
  • External clock synchronization for low noise
  • Robust protection features
    • Undervoltage lockout (UVLO)
    • Programmable over-current protection (OCP)
    • Input overvoltage protection (OVP)
    • Over temperature protection (TSD)
    • Integrated soft-start to reduce in-rush current
    • External disable function with fault-code output
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 8-Pin DGN package with thermal pad