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 12 Ω
? Up to 15 W output SMPS design capability
? Large Creepage Distance Between High?voltage Pins
? Safer and more robust design
? 780 mA Peak Current
? High power buck
? Direct Feedback connection for non-isolated converter
? Simpler and lower cost Buck or Buck-Boost designs
? Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
? Provides more robust protection without worrying about the coupling of the aux winding
? Frequency Jittering
? Better EMI Signature Over the Entire Operating Range
? Current?Mode Fixed Frequency Operation – 60 or 100 kHz
? Ability to scale for efficiency or size
? Skip-Cycle at low peak currents
? Improved efficiency at light loads
? Dynamic Self?Supply
? No Need for an Auxiliary Winding

應用 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
? Auxiliary Power Supply Isolated and Non-isolated
? White goods
? LED Lighting systems
? Wide Vin Industrial low power SMPS
? Power Meter SMPS

簡介

NCP10672屬于集成電路（IC）的ACDC轉換器離線開關。由制造生產(chǎn)的NCP10672AC DC 轉換器，離線開關該系列是元器件級控制產(chǎn)品，用于構建將交流市電轉換為直流電（通常電壓大幅降低）的設備。集成和未集成系統(tǒng)主要開關元件的器件均包括在內。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“開關轉換器，SMPS 變壓器”標題。