UCC256404
- 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.
技术文档
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)。
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。
UCC25640EVM-020 — UCC25640x 半桥 LLC 评估模块
SLUC675 — UCC25640x Design Calculator
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
PMP22088 — LLC 谐振转换器控制卡参考设计
PMP31179 — 用于航空电子设备的 400W 交流/直流参考设计
PMP40580 — 180W 通用输入 PFC + LLC 电视电源参考设计
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (DDB) | 14 | Ultra Librarian |
订购和质量
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。