NCP10672数据手册集成电路（IC）的ACDC转换器离线开关规格书PDF

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

应用 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

简介

NCP10672属于集成电路（IC）的ACDC转换器离线开关。由制造生产的NCP10672AC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。