ICE2QR4780G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 CoolSET™-Q1 series (ICE2QRxx80Z) is the first generation of quasi-resonant integarted power ICs. It is optimized for off-line switch mode power supply applications such as LCD monitor, DVD R/W, DVD Combo, Blue-ray DVD, set top box, etc. Operting the MOSFET switch in quasi-resonant mode, lower EMI, higher efficiency and lower voltage stress on secondary diodes are expected for the SMPS. Based on the BiCMOS technology, the CoolSET™-Q1 series has a wide operation range (up to 25 V) of IC power supply and lower power consumption. It also offers many advantages such as: a quasi-resonant operation till very low load increasing the average system efficiency compared to other conventional solutions; the Active Burst Mode operation enables ultra-low power consumption at standby mode with small and controllable output voltage ripple.

特性 Features

• 800 V avalanche rugged CoolMOS™ with built-in startup cell
• Quasiresonant operation till very low load
• Active burst mode operation for low standby input power (< 100 mW)
• Digital frequency reduction with decreasing load for reduced switching loss
• Built-in digital soft-start
• Foldback point correction and cycle-by-cycle peak current limitation
• Maximum on/off time limitation
• Auto restart mode for VCC Overvoltage and Undervoltage protections
• Auto restart mode for overload protection
• Auto restart mode for overtemperature protection
• Latch-off mode for adjustable output overvoltage protection and transformer short-winding protection

优势:
• Active Burst Mode to reach the lowest standby power requirement <100 mW @ no load
• Quasi resonant operation
• Digital frequency reduction for better overall system efficiency
• 800 V avalanche rugged CoolMOS™ with startup cell
• Pb-free lead plating, halogen free mold compound, RoHS compliant

应用 Application

• Adapter/Charger, Blue Ray/DVD player, Set-top Box, Digital Photo Frame
• Auxiliary power supply of Server, PC, Printer, TV, Home theater/Audio System, White Goods, etc

简介

ICE2QR4780G属于集成电路（IC）的ACDC转换器离线开关。由制造生产的ICE2QR4780GAC 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。