The UCC28070 is an advanced power factor correction (PFC) device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, allowing the conducted-EMI filtering to become easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average-current mode control in both PWM outputs while maintaining a stable, low-distortion, sinusoidal input-line current.

The UCC28070 device contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.

The UCC28070 device also contains a variety of protection features including output-overvoltage detection, programmable peak-current limit, undervoltage lockout, and open-loop protection.

ucc28070 is an先进德州仪器ucc28070pwrthe因子校正（PFC）的电源装置，integrates双脉宽（PWM）modulators out of operating 180度的相。这interleaved PWM操作generates实质和输出纹波还原电流在输入EMI滤波，allowing to the conducted -成为easier and less’。在共享的改进设计提供了significantly乘数电流参考电流amplifiers to that ensures两独立匹配的平均电流模式控制PWM输出都在同时维持在稳定的，低失真的正弦输入电流，在线。

装置包括多ucc28070 contains the current综合创新和量子化电压前馈的性能增强在促进效率，PF，thd，和瞬态响应。时钟同步包括频率dithering特点，分期，和潜在的进一步扩大茶叶slew增强性能增强。

ucc28070 contains the device of features品种也在保护包括过压检测输出峰值电流限制，可编程的，欠压锁定，和开环保护。