UCC28880特性：集成式功率MOSFET（开关），漏源电压额定值为700V；集成高压电流源，用于生成内部低压电源；支持降压、降压/升压和反激拓扑结构

UCC28880典型应用范围：交流转直流电源（在温度和输入电压范围内的输出电流高达100mA）；电表、家庭自动化、基础设施开关模式电源；晶闸管(TRIAC)驱动器的低侧降压拓扑；相家电、白色家电和发光二极管(LED)驱动器

UCC28880参考设计应用电路：

图1UCC28880内部结构图

TheUCC28880 integrates the controller and a 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source,enabling start up and operation directly from the rectified mains voltage.

图2UCC28880参考设计图

TheUCC28880 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.

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