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AC/DC 控制器

UCC24610

現行

二次側同步整流器控制器

立即訂購
產品規格表

UCC24610

現行
產品規格表 立即訂購

產品詳細資料

Topology Active-clamp flyback, Active-clamp forward, Buck-Boost, CCM, DCM, Flyback, Forward, Half bridge, LLC, LLC half-bridge, Quasi resonant Control mode VDS sensing Features 600kHz operation, Automatic Light Load Management, Compatible with CCM, SYNC Pin for CCM, SYNC pin for CCM, Synchronous Rectifier, VDS Sensing Sector Test & measurement
Topology Active-clamp flyback, Active-clamp forward, Buck-Boost, CCM, DCM, Flyback, Forward, Half bridge, LLC, LLC half-bridge, Quasi resonant Control mode VDS sensing Features 600kHz operation, Automatic Light Load Management, Compatible with CCM, SYNC Pin for CCM, SYNC pin for CCM, Synchronous Rectifier, VDS Sensing Sector Test & measurement
VSON (DRB) 8 9 mm² (3 mm × 3 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Secondary-Side Controller Optimized for 5-V Systems
  • Up to 600-kHz Operating Frequency
  • VDS MOSFET-Sensing
  • 1.6-Ω Sink, 2.0-Ω Source Gate-Drive Impedances
  • Micro-Power Sleep Current for 90+ Designs
  • Automatic Light-Load Management
  • Synchronous Wake-Up From Sleep and Light-Load Modes
  • Protection Features on Programming Inputs
  • SYNC Input for CCM Operation
  • 20-ns Typical Turnoff Propagation Delay
  • Improved Efficiency and Design Flexibility Over Traditional Diode Solution
  • May Be Biased Directly From 5-V Output
  • Minimal Component Count
  • APPLICATIONS
    • AC-to-DC 5-V Adapters
    • 5-V Bias Supplies
    • Low Voltage Rectification Circuits
    • Flyback and LLC Converters
    •
  • Secondary-Side Controller Optimized for 5-V Systems
  • Up to 600-kHz Operating Frequency
  • VDS MOSFET-Sensing
  • 1.6-Ω Sink, 2.0-Ω Source Gate-Drive Impedances
  • Micro-Power Sleep Current for 90+ Designs
  • Automatic Light-Load Management
  • Synchronous Wake-Up From Sleep and Light-Load Modes
  • Protection Features on Programming Inputs
  • SYNC Input for CCM Operation
  • 20-ns Typical Turnoff Propagation Delay
  • Improved Efficiency and Design Flexibility Over Traditional Diode Solution
  • May Be Biased Directly From 5-V Output
  • Minimal Component Count
  • APPLICATIONS
    • AC-to-DC 5-V Adapters
    • 5-V Bias Supplies
    • Low Voltage Rectification Circuits
    • Flyback and LLC Converters
    •

    This GREEN Rectifier controller is a high-performance controller and driver for standard and logic-level N-channel MOSFET power devices used for low-voltage secondary-side synchronous rectification.

    The combination of controller and MOSFET emulates a near-ideal diode rectifier. This solution not only directly reduces power dissipation of the rectifier but also indirectly reduces primary-side losses as well, due to compounding of efficiency gains.

    Using drain-to-source voltage sensing, the UCC24610 is ideal for Flyback and LLC-resonant power supplies but can also be used with other power architectures. The UCC24610 is optimized for output voltages from 4.5 V to 5.5 V, and is suitable for use with lower and higher output voltages as well.

    The UCC24610 offers a programmable false-triggering filter, a programmable timer to automatically switch to light-load mode at light load, and a SYNC input for optional use in continuous conduction mode (CCM) systems. Protection features on TON and EN/TOFF pins prevent run-away on-time due to open-circuit or short-circuit fault conditions.

    This device is available in an 8-pin SOIC package and an 8-pin, 3.0-mm × 3.0-mm SON package with an exposed thermal pad.

    This GREEN Rectifier controller is a high-performance controller and driver for standard and logic-level N-channel MOSFET power devices used for low-voltage secondary-side synchronous rectification.

    The combination of controller and MOSFET emulates a near-ideal diode rectifier. This solution not only directly reduces power dissipation of the rectifier but also indirectly reduces primary-side losses as well, due to compounding of efficiency gains.

    Using drain-to-source voltage sensing, the UCC24610 is ideal for Flyback and LLC-resonant power supplies but can also be used with other power architectures. The UCC24610 is optimized for output voltages from 4.5 V to 5.5 V, and is suitable for use with lower and higher output voltages as well.

    The UCC24610 offers a programmable false-triggering filter, a programmable timer to automatically switch to light-load mode at light load, and a SYNC input for optional use in continuous conduction mode (CCM) systems. Protection features on TON and EN/TOFF pins prevent run-away on-time due to open-circuit or short-circuit fault conditions.

    This device is available in an 8-pin SOIC package and an 8-pin, 3.0-mm × 3.0-mm SON package with an exposed thermal pad.
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    技術文件

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    重要文件 類型 標題 格式選項 下載最新的英文版本 日期
    * 資料表 UCC24610 GREEN Rectifier™ Controller Device datasheet (Rev. C) PDF | HTML 2015/8/12
    更多文件說明 PCB layout guidelines to optimize power supply performance 2021/3/23
    選擇指南 Power Management Guide 2018 (Rev. R) 2018/6/25
    應用說明 UCC24610 and UCC24612 SR Range Extension Guide 2017/12/18
    技術文章 USB Wall Chargers: Conveniences and Challenges PDF | HTML 2015/10/6
    應用說明 A High Efficiency Synchronous Rectifier Flyback for High Density AC/DC Adapter 2011/6/3
    使用指南 A 90-W High-Efficiency, LLC Series-Resonant Converter 2010/11/3
    使用指南 Using the UCC24610EVM-693 2010/9/3

    設計與開發

    如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

    開發板

    UCC24610EVM-563 — 用於 UCC24610 二次側同步整流控制器的評估模組

    UCC24610EVM-563 是由 UCC24610 控制的二次側同步整流的 25W、5V 離線 DCM 返馳式轉換器。一次側控制由 UCC28610 環保模式返馳式控制器提供。
    使用指南: PDF
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    子卡

    UCC24610EVM-693 — 用於 UCC24610 二次側同步整流器控制器的二極體替代展示卡

    UCC24610EVM-693 是二極管更換演示卡，用作現有客戶系統中肖特基二極管的替代品。 此子卡包含 UCC24610 控制器，適用於 5V 的 FET，10W 輸出轉換器以及支援元件。卸下現有二極管後， UCC24610EVM-693 可透過幾根電線輕鬆連接至客戶的轉換器。
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    計算工具

    SLUC348 — UCC24610 Design Calculation Tool

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