ICE5QSAG屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)。由英飛凌科技股份公司制造生產(chǎn)的ICE5QSAGAC 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。

描述 Description

The Quasi-Resonant, ICE5QSAG is the 5th generation of quasiresonant controller optimized for off-line switch power supply in cascode configuration. The improved digital frequency reduction with proprietary novel Quasi-Resonant operation offers lower EMI and higher efficiency for wide AC range by reducing the switching frequency difference between low and high line. The enhanced active burst mode enables flexibility in standby power range selection. The product has a wide operating range (10~25.5 V) of IC power supply and lower power consumption. The numerous protection functions including the robust line protection (both input OVP and brownout) to support the protections of the power supply system in failure situations. All of these make the ICE5QSAG an outstanding controller for Quasi-Resonant flyback converter in the market.

Product Highlights

? Novel Quasi-resonant operation and proprietary implementation for low EMI

? Enhanced Active Burst Mode with selectable entry and exit standby power

? Active Burst Mode to reach the lowest standby power <100 mW

? Fast startup achieved with cascode configuration

? Digital frequency reduction for better overall system efficiency

? Robust line protection with input OVP and brownout

? Comprehensive protection

? Pb-free lead plating, halogen free mold compound, RoHS compliant

特性 Features

? Minimum switching frequency difference between low & high

?? line for higher efficiency & better EMI

? Enhanced Active Burst Mode with selectable entry and exit

?? standby power

? Active Burst Mode to reach the lowest standby power <100 mW

? Fast startup achieved with cascode configuration

? Digital frequency reduction up to 10 zero crossings

? Built-in digital soft start

? Cycle-by-cycle peak current limitation

? Maximum on/off time limitation to avoid audible noise during

?? start up and power down

? Robust line protection with input OVP and brownout

? Auto restart mode protection for VCC Over Voltage, VCC Under

?? Voltage, Over load/Open Loop, Output Over Voltage, Over

?? Temperature

? Limited charging current for VCC short to GND

? Pb-free lead plating, halogen free mold compound, RoHS

?? compliant

Applications

? Auxiliary power supply for Home Appliances/white Goods, TV,

?? PC & Server

? Blu-ray player, Set-top box & LCD/LED Monitor