描述 Description

Integrated power management IC with 800V avalanche rugged CoolMOS?, startup cell and QR current mode flyback PWM controller in DIP-7 package.? Capable for 19W SMPS design. The quasi QR CoolSET? series continues to deliver design agility and miniaturization. Upon the successful F3 CoolSET?, this new series offer the possibility of higher efficiency and better EMI performance. The digital frequency reduction feature score a very stable operation with decreasing load change, and the fold-back correction keep the maximum power limits within tolerance desired by SMPS designers. The active burst mode operation during low power consumption, remains market leaders in providing best-in-class power consumption during standby.

特性 Features

? Integrated power IC with 800V avalanche rugged CoolMOS?, startup cell and QR flyback PWM controller

? digital frequency reduction with decreasing load,

? cycle-by-cycle current limitation with fold-back correction

? built-in digital soft-start

? active burst mode for lowest standby power <50mW

? latch-off mode for short-winding and output voltage

? enhanced integrated protection functions, modulated gate drive, etc.

優(yōu)勢:
? ?Higher efficiency?

? ?low EMI noise

? ?low standby power, etc.

應(yīng)用 Application

? Small power supply such as Blu-ray, DVD player, set-top box, game console, smart meter, charger and auxiliary power of high power system such as LED TV, etc.

簡介

ICE2QR4780Z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ICE2QR4780ZAC 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。