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参数

Topology Half-Bridge, Resonant LLC Control method Current VCC (Min) (V) 13 VCC (Max) (V) 30 Duty cycle (Max) (%) 50 Operating temperature range (C) -40 to 125 Gate drive (Typ) (A) 0.6 Features HV Start-up, Integrated Gate Drivers, Light Load Efficiency, Low Power, Programmable Soft Start, Thermal Shutdown, Zero Voltage Switching Rating Catalog open-in-new 查找其它 PWM控制器和谐振控制器

封装|引脚|尺寸

SOIC (DDB) 14 59 mm² 9.9 x 6 open-in-new 查找其它 PWM控制器和谐振控制器

特性

  • Optimized low power mode and burst mode algorithm
    • Burst mode with Soft-ON and Soft-OFF periods
    • Minimized audible noise at no load and standby
    • User option to disable burst mode
    • Opto-coupler low power operation
    • Efficiency performance exceeds DoE Level VI and EU CoC Tier-2 External Power Supply Standards
  • Hybrid hysteretic control (HHC)
    • Best-in-class transient response
    • Fast exit from burst mode
  • Robust adaptive dead-time control
  • Integrated high-voltage gate driver with 0.6 A source and 1.2 A sink capability
  • Robust capacitive region (ZCS) avoidance scheme
  • Over temperature, output over voltage, input under voltage protection, three levels of over current protection
  • Integrated high voltage startup function
  • Active X-capacitor discharge function

All trademarks are the property of their respective owners.

open-in-new 查找其它 PWM控制器和谐振控制器

描述

The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC controller to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter.

UCC25640x provides a highly efficient burst mode with soft-on and soft-off periods to minimize audible noise at standby operation. The burst power level and hysteresis are programmable, simplifying the optimization of efficiency and burst mode operation. Burst mode can also be disabled through pin configuration. UCC25640x uses hybrid hysteretic control to provide best in class line and load transient response.

UCC25640x includes a range of features designed to make LLC converter operation well controlled and protected. It can be used with UCC28056 or UCC28064A PFC controllers, along with UCC24624 synchronous rectifier controller to offer a complete power supply solution.

open-in-new 查找其它 PWM控制器和谐振控制器
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技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 UCC25640x LLC Resonant Controller with Ultra-Low Audible Noise and Standby Power 数据表 2020年 9月 29日
技术文章 How to reduce audible noise and power consumption at standby in your AC/DC design 2020年 4月 22日
应用手册 Migrating to UCC25640x from UCC25630x 2019年 12月 10日
应用手册 Why is transient response important and how we are improving it? 2019年 10月 22日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
175
说明
UCC25640EVM-020 是一款使用 UCC256404 的 180W、LLC 谐振转换器。此 EVM 可接受 360V 至 410V 的直流输入和 85VAC 至 264VAC 的交流输入电压,并且输出电压为 12VDC,满负载输出功率为 180W。
特性
  • 优化的突发模式功能,用于降低可闻噪声和待机功耗
  • 集成高电压启动和集成栅极驱动器可降低 BOM 总数
  • 可靠的保护功能,包括过压、过流和零电流开关检测
  • X 电容器放电功能

软件开发

支持软件 下载
SLUC675B.ZIP (212 KB)

设计工具和仿真

仿真模型 下载
SLUM684.ZIP (178 KB) - SIMPLIS Model

CAD/CAE 符号

封装 引脚 下载
SOIC (DDB) 14 了解详情

订购与质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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