支持低待机功耗且具有高压启动功能的 LLC 谐振控制器

UCC256302 不推荐用于新设计
虽然我们会继续生产此产品供先前的设计使用,但不推荐在新设计中使用此产品。请考虑从这些替代产品中选择一款:
open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚
UCC256402 正在供货 具有超低待机功耗和高电压启动功能的 LLC 谐振控制器 Lowers audible noise in applications
功能与比较器件相同但引脚有所不同
全新 UCC25660 正在供货 宽 VIN 和 VOUT 750kHz LLC 控制器 Capable of higher operating frequency and supports wider VIN/VOUT operation

产品详情

Vin (min) (V) 13 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Control mode Current Topology Half bridge, LLC Rating Catalog Features High voltage gate driver integrated, High voltage startup, Hybrid hysteretic control, Light load efficiency, Over Temperature Protection
Vin (min) (V) 13 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Control mode Current Topology Half bridge, LLC Rating Catalog Features High voltage gate driver integrated, High voltage startup, Hybrid hysteretic control, Light load efficiency, Over Temperature Protection
SOIC (DDB) 14 59.4 mm² 9.9 x 6
  • Integrated High Voltage Startup
    • Eliminates Need for External
      Bias Supply
  • Best-in-Class Transient Response
  • Hybrid Hysteretic Control (HHC)
    • Best-in-Class Transient Response
    • Easy Compensation Design
  • Optimized Low Power Features Enable 75 mW
    Standby Power Design with PFC on
    • Advanced Burst Mode
      Opto-Coupler Low Power Operation
    • Helps Enable Compliance to CoC Tier II Standard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers
    (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, Input
    Over and Under Voltage Protection with
    Three Levels of Over Current Protections
  • Wide Operating Frequency Range
    (35 kHz to 1 MHz)
  • Select the appropriate LLC resonant controller for your design with UCC25630x Selection GuideUCC25630x Selection Guide
  • Create a Custom Design Using the UCC256302 With the WEBENCH® Power Designer
  • Integrated High Voltage Startup
    • Eliminates Need for External
      Bias Supply
  • Best-in-Class Transient Response
  • Hybrid Hysteretic Control (HHC)
    • Best-in-Class Transient Response
    • Easy Compensation Design
  • Optimized Low Power Features Enable 75 mW
    Standby Power Design with PFC on
    • Advanced Burst Mode
      Opto-Coupler Low Power Operation
    • Helps Enable Compliance to CoC Tier II Standard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers
    (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, Input
    Over and Under Voltage Protection with
    Three Levels of Over Current Protections
  • Wide Operating Frequency Range
    (35 kHz to 1 MHz)
  • Select the appropriate LLC resonant controller for your design with UCC25630x Selection GuideUCC25630x Selection Guide
  • Create a Custom Design Using the UCC256302 With the WEBENCH® Power Designer

The UCC256302 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed for use in offline AC-DC or isolated DC-DC 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.

UCC256302 includes an integrated, high voltage startup function which eliminates the need for an external bias supply, reducing BOM count and minimizing solution size. UCC256302 uses hybrid hysteretic control to provide best in class line and load transient response. The control makes the open loop transfer function a first order system so that it’s very easy to compensate.

UCC256302 provides a high efficient burst mode with consistent burst power level during each burst on cycle. The burst power level is programmable and adaptively changes with input voltage, making the optimization of efficiency very easy.

Select the appropriate LLC resonant controller for your design with UCC25630x Selection Guide

The UCC256302 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed for use in offline AC-DC or isolated DC-DC 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.

UCC256302 includes an integrated, high voltage startup function which eliminates the need for an external bias supply, reducing BOM count and minimizing solution size. UCC256302 uses hybrid hysteretic control to provide best in class line and load transient response. The control makes the open loop transfer function a first order system so that it’s very easy to compensate.

UCC256302 provides a high efficient burst mode with consistent burst power level during each burst on cycle. The burst power level is programmable and adaptively changes with input voltage, making the optimization of efficiency very easy.

Select the appropriate LLC resonant controller for your design with UCC25630x Selection Guide

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 UCC256302 Hybrid Hysteretic Mode Wide VIN LLC Resonant Controller 数据表 2017年 11月 2日
应用手册 使用混合迟滞控制改善 LLC 转换器的瞬态响应 (Rev. B) PDF | HTML 英语版 (Rev.B) 2021年 5月 3日
应用手册 Migrating to UCC25640x from UCC25630x (Rev. A) 2019年 12月 10日
应用简报 Exceeding Modern Energy Standards with 'Always On' PFC and LLC Controllers​ (Rev. B) 2019年 8月 1日
应用手册 Improving ZVS and efficiency in LLC converters 2018年 11月 5日
应用简报 借助“始终开启”PFC 超越现代能耗标准和LLC 控制器 (Rev. A) 最新英语版本 (Rev.B) 2018年 5月 3日
选择指南 UCC25630x 选型指南 英语版 2018年 2月 26日
应用手册 UCC25630x Practical Design Guidelines (Rev. A) 2017年 12月 8日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

UCC25630-1EVM-291 — UCC256301 LLC 评估模块

UCC25630-1EVM-291 是具有 LLC 控制器 UCC256301 的 LLC 谐振半桥直流/直流功率转换器 EVM。UCC25630-1EVM-291 支持 340Vdc 至 410Vdc 的直流线路输入、85 VAC 至 264 VAC 交流输入电压,可输出标称电压 12VDC,其中满载输出功率为 120W 或最大输出电流为 10A。

用户指南: PDF
TI.com 上无现货
仿真模型

UCC256301 SIMPLIS Model

SLUM596.ZIP (108 KB) - SIMPLIS Model
计算工具

SLUC634 UCC25630x Design Calculator

支持的产品和硬件

支持的产品和硬件

产品
交流/直流和直流/直流控制器(外部 FET)
UCC256301 支持超低待机功耗且具有高压启动功能的宽输入电压 LLC 谐振控制器 UCC256302 支持低待机功耗且具有高压启动功能的 LLC 谐振控制器 UCC256303 支持低待机功耗的 LLC 谐振控制器 UCC256304 支持低待机功耗且具有高压启动功能的宽输入电压 LLC 谐振控制器
参考设计

PMP40379 — 适用于音频放大器的 500W 单级 LLC 电源参考设计

This single-stage LLC converter reference design illustrates how to convert AC input voltage (100-120 Vac and 200-240 Vac) to isolated ±42-V DC output with the UCC256302 resonant controller. The design has a regulated ±42-V output that can handle up to 6 A of continuous output current (...)
测试报告: PDF
原理图: PDF
参考设计

PMP21683 — 48V/550W 谐振转换器参考设计

This resonant converter reference design takes a 380-V to 420-V DC input and generates a 48-V up to 550-W output. With the UCC256302 driver-integrated resonant converter controller and UCC24624, a two-channel synchronous rectifier (SR) driver, this design can achieve 97.95% peak efficiency.
测试报告: PDF
原理图: PDF
参考设计

PMP30522 — 110VAC 至 38V/2A 单级 LLC 谐振转换器参考设计

This reference design is a half bridge LLC resonant converter, typically combined to PFC front end. It works directly from mains (100 VAC - 127 VAC) and supplies 38 V at 2 A. The burst mode feature keeps the curve flat in a range of 86% - 94% when load is varied between 1% and 100%.
测试报告: PDF
原理图: PDF
参考设计

PMP21582 — 260-W 离线多输出 LLC-SRC 参考设计

此参考设计使用 UCC256302 LLC 谐振控制器来提供美国线路交流输入至 30V、250W 输出和 13.8V、11W 输出转换。低厚度设计,最大高度为 1 英寸。采用 120V 交流输入时,此设计的峰值效率达到 94%。
测试报告: PDF
原理图: PDF
参考设计

PMP21000 — 单级交流/直流无辅助 LLC 谐振转换器参考设计

This reference design provides a 12-V/100-W output from either 120-Vac or 230-Vac input with a single LLC resonant converter stage. The bill of materials (BOM) cost of this design is highly optimized with the single-stage structure and the use of UCC256302 LLC resonant controller. High voltage (...)
测试报告: PDF
原理图: PDF
参考设计

PMP40281 — LLC 谐振转换器控制卡参考设计

此参考设计是 LLC 转换器的控制卡。它集成了用来控制 LLC 转换器的所有基本功能,包括高电压启动、X 电容放电和功率 FET 驱动器。通过采用先进的突发模式,即使 PFC 开启时,它也能帮助 LLC 转换器实现超低待机功耗。此外,PMP40281 极其灵活,便于用户评估,并且适用于 LLC 电源板的任何额定功率。通过简单连接,即可使用现有功率级轻松设置基准测试。 
测试报告: PDF
原理图: PDF
封装 引脚 下载
SOIC (DDB) 14 查看选项

订购和质量

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/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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