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UCC256404

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具有超低功耗、超静音待机运行和高电压启动功能的 LLC 谐振控制器

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
UCC25661 正在供货 具有高压启动功能的宽 VIN 和 VOUT 750KHz LLC 控制器 Capable of higher operating frequency and supports wider VIN/VOUT operation

产品详情

Topology Half bridge, LLC Control mode Current Features High voltage gate driver integrated, High-voltage startup, Hybrid hysteretic control, LLC, Light load efficiency, Low standby current, Over Temperature Protection, Programmable soft start, Thermal shutdown, USB C/PD compatible, Zero voltage switching
Topology Half bridge, LLC Control mode Current Features High voltage gate driver integrated, High-voltage startup, Hybrid hysteretic control, LLC, Light load efficiency, Low standby current, Over Temperature Protection, Programmable soft start, Thermal shutdown, USB C/PD compatible, Zero voltage switching
SOIC (DDB) 14 59.4 mm² (9.9 mm × 6 mm)
  • 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 0.6A source and 1.2A sink capability
  • Robust capacitive region (ZCS) avoidance scheme
  • Over temperature, output over voltage, input undervoltage protection, three levels of overcurrent protection
  • Integrated high voltage startup function
  • Active X-capacitor discharge function
  • 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 0.6A source and 1.2A sink capability
  • Robust capacitive region (ZCS) avoidance scheme
  • Over temperature, output over voltage, input undervoltage protection, three levels of overcurrent protection
  • Integrated high voltage startup function
  • Active X-capacitor discharge function

The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver. UCC25640x is 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. Disable burst mode through the 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. Use UCC25640x with UCC28056 or UCC28064A PFC controllers, along with a UCC24624 synchronous rectifier controller to offer a complete power supply option.

The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver. UCC25640x is 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. Disable burst mode through the 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. Use UCC25640x with UCC28056 or UCC28064A PFC controllers, along with a UCC24624 synchronous rectifier controller to offer a complete power supply option.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 UCC25640x LLC Resonant Controller with Ultra-Low Audible Noise and Standby Power 数据表 (Rev. F) PDF | HTML 2026-8-11
技术文章 使用数字控制器在次级侧实现 LLC 电流模式控制 PDF | HTML 英语版 PDF | HTML 2025-8-6
证书 UCC256404 IEC 62368 2025-6-12
应用手册 LLC 控制器在突发模式时的零电流开关问题 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2025-4-25
技术文章 音频放大器的 LLC 设计注意事项 PDF | HTML 英语版 PDF | HTML 2024-3-13
技术文章 在完全工作条件下进行测试之前测量 LLC 谐振回路 PDF | HTML 英语版 PDF | HTML 2024-3-13
应用手册 关于 UCC25640x LLC 谐振控制器的常见问题解答 PDF | HTML 英语版 PDF | HTML 2023-6-23
应用手册 UCC25640x LLC Resonant Controller Features Brief Overview and Bring up Guideline PDF | HTML 2022-6-20
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) 2021-5-3
技术文章 How to reduce audible noise and power consumption at standby in your AC/DC design PDF | HTML 2020-4-22
证书 UCC256404 IEC60065 Certification 2020-4-10
证书 UCC256404 IEC60950 Certification 2020-2-19
证书 UCC256404 IEC62368 Certification 2020-2-19
应用手册 Migrating to UCC25640x from UCC25630x (Rev. A) 2019-12-10
应用手册 Improving ZVS and efficiency in LLC converters 2018-11-5

设计与开发

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

PFCLLCSREVM034 — UCC28056B、UCC256404 和 UCC24624 交流至隔离式 DC EVM

PFCLLCSREVM034 是一个 168W 交流/直流电源,包含转换模式功率因数校正前端以及具有同步整流功能的隔离式半桥 LLC 谐振转换器。此 EVM 可接受 90Vrms 至 264Vrms 的交流输入,并且输出电压为 12VDC,满负载输出功率为 168W。

用户指南: PDF
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评估板

UCC25640EVM-020 — UCC25640x 半桥 LLC 评估模块

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。
支持的产品和硬件
有库存
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仿真模型

UCC25640x Simplis Model

SLUM684.ZIP (178 KB) - SIMPLIS 模型
支持的产品和硬件
计算工具

SLUC675 — UCC25640x Design Calculator

支持的产品和硬件
参考设计

PMP22087 — 具有 80 PLUS 铂金兼容性能的 336W 无辅助交流/直流电源参考设计

该参考设计是一种交流/直流电源设计,具有临界传导模式 (CRM) PFC 和半桥 LLC 串联谐振转换器,可从通用输入交流电压(90VAC 至 264VAC)提供 24V/240W 连续、336W 峰值输出。该设计使用 UCC28056 CRM/DCM PFC 控制器、UCC256404 增强型 LLC 控制器和具有突发模式的 UCC24612-2 同步整流器控制器,以实现低待机功耗。该设计在 115VAC 电压下功耗为 87mW,在 230VAC 电压下功耗为 124mW,并且在 115VAC 输入下可实现 93.4% 的峰值效率,在 230VAC 输入下可实现 95.3% (...)
支持的产品和硬件
参考设计

PMP22088 — LLC 谐振转换器控制卡参考设计

该参考设计是 LLC 转换器的控制卡,集成了用于控制 LLC 转换器的所有基本功能,包括 HV 启动、X 电容器放电和功率 FET 的驱动器。通过采用先进的突发模式,即使在 PFC 开启时,它也能帮助 LLC 转换器实现超低待机功耗。该设计评估灵活,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。 
支持的产品和硬件
参考设计

PMP31179 — 用于航空电子设备的 400W 交流/直流参考设计

这是一款适用于航空电子设备应用的紧凑型 30V 直流 400W 参考设计,工作电源频率范围为 400Hz 至 800Hz。基于 UCC28064A 的交错双相转换模式 (TM) 功率因数校正 (PFC) 用于校正功率因数,并充分减小输入电流的谐波含量。该直流/直流功率级通过采用 UCC256404 的 HB-LLC 级实现。在次级侧,采用同步整流进一步提高效率。
支持的产品和硬件
参考设计

PMP40580 — 180W 通用输入 PFC + LLC 电视电源参考设计

这款用于电视应用的交流/直流电源设计通过通用交流电压(90V 交流至 264V 交流)提供 12V/5A 和 150V/0.8A 输出。该设计使用 CRM/DCM PFC 控制器 UCC28056 和 LLC 控制器 UCC256404,具有增强突发模式以实现低待机功耗和更低的可闻噪声。  该设计可在 150mW 负载时实现 <250mW 的待机功耗,并可在 230V 交流输入时实现 >93% 的峰值效率。
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (DDB) 14 Ultra Librarian

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