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

應(yīng)用 Application

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

簡介

FAN604H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FAN604HAC 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(biāo)題。