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UCC256403

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具有超低功耗和超静音待机运行功能的 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, Hybrid hysteretic control, LLC, Light load efficiency, Light-load efficiency, Low power, 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, Hybrid hysteretic control, LLC, Light load efficiency, Light-load efficiency, Low power, 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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设计与开发

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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。
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仿真模型

UCC25640x Simplis Model

SLUM684.ZIP (178 KB) - SIMPLIS 模型
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计算工具

SLUC675 — UCC25640x Design Calculator

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参考设计

PMP22083 — 单级交流/直流 LCC 谐振转换器参考设计

该参考设计具有一个单级 LCC 谐振转换器,通过 120V 交流输入提供高达 265W 的恒定电压和恒定电流输出。通过使用单级结构和集成驱动器的 LLC 谐振控制器 UCC256403,该设计的 BOM 成本得到了高度优化。通过将具有 UCC28910 的初级侧稳压反激式器件作为偏置转换器,您能打开/关闭主功率级。该设计可以在 120V 交流输入下实现 88% 的峰值效率和 200kHz 以上的开关频率。
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参考设计

PMP40766 — 通用输入 500W CC/CV 电动自行车充电器参考设计

此参考设计是一款适用于电动自行车应用的通用输入、71.4V、7A 恒流恒压 (CC/CV) 充电器。UCC28180 器件用于 CCM PFC 级,可实现 0.99 的功率因数和低电流总谐波失真。UCC256403 用于半桥谐振转换器,可实现 95.8% 的效率,在恒压模式下具有快速的负载瞬态性能。使用 UCC28910 的反激式器件可为 PFC、LLC、控制电路和冷却风扇提供辅助电源。CC/CV 选项可调,供 MCU 电路板使用,从而适用于具有多电池节数的电池充电应用。
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参考设计

TIDA-010080 — 适用于 5G 通信电源整流器的 500W、效率大于 94.5% 的模拟控制交流/直流参考设计

该紧凑型高效参考设计具有 48V 直流、500W 输出,面向 5G 电信电源和工业交流/直流电源。该电路包括基于 UCC28180 的前端连续导通模式 (CCM) 功率因数校正 (PFC) 电路,其次是基于 UCC256403、用于隔离式直流到直流转换器的稳健 LLC 级。为满足高效率的需求,使用 UCC24624 来实现同步整流。该设计使用采用 UCC28911(具有内部高电压 MOSFET)的反激式辅助电源。该设计可实现 94.5% 的峰值效率,并使系统能够在没有强制冷却的情况下工作。整个系统具有低 iTHD(负载为 30% 时小于 12%,负载为 50% 时小于 8%,负载为 (...)
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参考设计

TIDA-010081 — 适用于 5G 通信电源整流器且效率超过 95% 的 1kW 模拟控制交流/直流参考设计

该紧凑型高效参考设计具有 54V 直流、1000W 输出,面向 5G 电信电源和工业交流/直流电源。该电路包括基于 UCC28180 的前端连续导通模式 (CCM) 功率因数校正 (PFC) 电路,其次是基于 UCC256403、用于隔离式直流到直流转换器的稳健 LLC 级。为满足高效率的需求,使用 UCC24624 来实现同步整流。该设计使用采用 UCC28911(具有内部高电压 MOSFET)的反激式辅助电源。该设计可实现 95.9% 的峰值效率,并使系统能够在没有强制冷却的情况下工作。整个系统具有低 iTHD(负载为 30% 时小于 12%,负载为 50% 时小于 8%,负载为 (...)
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封装 引脚 CAD 符号、封装和 3D 模型
SOIC (DDB) 14 Ultra Librarian

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