描述 Description

The NCP1067X products integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a SOIC-7 package, the NCP1067X offer a high level of integration, including soft?start, frequency?jittering, short?circuit protection, skip?cycle, ramp compensation, and a Dynamic Self?Supply (eliminating the need for an auxiliary winding). During nominal load operation, the NCP1067X switches at one of the available frequencies (60 or 100 kHz). When the output power demand diminishes, the IC automatically enters into a skip mode to reduce the standby consumption down. Protection features include: a timer to detect an overload or a short?circuit event, Overvoltage Protection with auto?recovery. For improved standby performance, the connection of an auxiliary winding or supplying the IC from the output, stops the DSS operation and helps to reduce input power consumption below 15 mW at high line. NCP1067x can be seamlessly used both in non-isolated and in isolated topologies.

特性 Features

? Built-in 700 V MOSFET with RDS(on)of 34Ω
? Large Creepage Distance Between High-voltage Pins
? 100mA Peak Current
? Direct Feedback connection for non-isolated converter
? Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
? Frequency Jittering
? Current-Mode Fixed Frequency Operation -60 or 100kHz
? Skip-Cycle at low peak currents
? Dynamic Self-Supply

應(yīng)用 Application

? Auxiliary Power Supply Isolated and Non-isolated
? White goods (Washing, Cold, Aircon ,...)
? LED Lighting systems
? Wide Vin Industrial low power SMPS
? Power Meter SMPS

簡介

NCP10670屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)。由制造生產(chǎn)的NCP10670AC DC 轉(zhuǎn)換器，離線開關(guān)該系列是元器件級控制產(chǎn)品，用于構(gòu)建將交流市電轉(zhuǎn)換為直流電（通常電壓大幅降低）的設(shè)備。集成和未集成系統(tǒng)主要開關(guān)元件的器件均包括在內(nèi)。由于高輸入輸出電壓比，以及此類系統(tǒng)中通常需要隔離，這些器件通常與外部變壓器配合使用。盡管通常使用定制變壓器來實現(xiàn)此用途，但也有許多專門用于此用途的庫存產(chǎn)品，請參見“開關(guān)轉(zhuǎn)換器，SMPS 變壓器”標題。