ZHCSIL2C July   2018  – March 2022 UCC24624

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. 说明(续)
  6. Pin Configuration and Functions
    1.     Pin Functions
  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 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Management
      2. 8.3.2 Synchronous Rectifier Control
      3. 8.3.3 Turn-off Threshold Adjustment
      4. 8.3.4 Noise Immunity
        1. 8.3.4.1 On-Time Blanking
        2. 8.3.4.2 Off-Time Blanking
        3. 8.3.4.3 Two-Channel Interlock
        4. 8.3.4.4 SR Turn-on Re-arm
        5. 8.3.4.5 Adaptive Turn-on Delay
      5. 8.3.5 Gate Voltage Clamping
      6. 8.3.6 Standby Mode
    4. 8.4 Device Functional Modes
      1. 8.4.1 UVLO Mode
      2. 8.4.2 Standby Mode
      3. 8.4.3 Run Mode
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 MOSFET Selection
        2. 9.2.2.2 Snubber Design
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Custom Design With WEBENCH® Tools
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks

说明(续)

通过基于平均开关频率的内置待机模式检测,UCC24624 可自动进入待机模式,无需使用外部组件。180µA 的低待机模式电流可帮助满足现代空载功耗要求(如 CoC 和 DoE 规定)。UCC24624 可与 UCC25630x LLC 和 UCC28056 PFC 控制器搭配使用,以实现高效率,同时保持出色的轻载和空载性能。其他 PFC 控制器(如 UCC28064AUCC28180UCC28070)可用于实现更高的功率级别。1.5A 峰值拉电流和 4A 峰值灌电流驱动能力使 UCC24624 能够支持高达 1kW 的 LLC 转换器。