FAN604H中文资料Offline Quasi-Resonant PWM Controller数据手册ONSEMI规格书

描述 Description

The FAN604H is an advanced PWM controller aimed at achieving power density of ≥10W/in3 in universal input range AC/DC flyback isolated power supplies. It incorporates Quasi-Resonant (QR) control with proprietary Valley Switching with a limited frequency variation. QR switching provides high efficiency by reducing switching losses while Valley Switching with a limited frequency variation bounds the frequency band to overcome the inherent limitation of QR switching. FAN604H features mWSaver® burst mode operation with extremely low operating current (300 μA) and significantly reduces standby power consumption to meet the most stringent efficiency regulations such as Energy Star’s 5-Star Level and CoC Tier II specifications.
FAN604H includes several user configurable features aimed at optimizing efficiency, EMI and protections. FAN604H has a wide blanking frequency range that improves light load efficiency and eliminating audio noise for adaptive application. It incorporates user-configurable constant current reference, which allows controlling the maximum output current from primary-side, thereby optimizing transformer design to improve the overall efficiency. It also includes several rich programmable protection features such as over-voltage protection (OVP), precise constant output current regulation (CC).

特性 Features

• Quasi-Resonant Switching Operation with Wide Blanking Time Range
• Higher average efficiency
• Constant Current Reference (CCR) to Limit the Maximum output Current
• Optimization Transformer Design for Adaptive Charger Application
• mWSaver® Technology for Ultra Low Standby Power Consumption (
• Low standby power
• Programmable Over-Temperature-Protection through External NTC Resistor
• Accuracy Over Temperature Protection
• Built-In and User Configurable Over-Voltage Protection (OVP), Under-Voltage, Protection (UVP) and Over-Temperature Protection (OTP)
• Various protections
• Forced and Inherent Frequency Modulation of Valley Switching for Low EMI Emissions and Common Mode Noise
• Better EMI suppression and Common Mode Noise

应用 Application

• This product is general usage and suitable for many different applications.
• Travel Adapter

简介

FAN604H属于集成电路（IC）的ACDC转换器离线开关。由制造生产的FAN604HAC 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。