ICE5AR4770AG第五代固定頻率集成電源集成電路

　　infineon公司的ICE5xRxxxxAG（ICE5AR4770AG）是第五代固定頻率集成電源集成電路（CoolSET?），最佳用于級聯配置的離線開關電源.CoolSET?封裝內有兩個芯片：一是控制器芯片，另一個是700 V/800 V CoolMOS?芯片。級聯配置有助獲得快速起動，降低頻率的軟柵極驅動和頻率抖動工作提供了輕負載和50%負載間更低EMI和更好的效率。器件工作范圍（10.0 ~ 25.5 V），有更低功耗，多種保護功能和可調整火線過壓保護支持故障情況的電源系統：所有這些都使第五代CoolSET?系列產品在集成功率固定頻率反激轉換器市場中是杰出的。主要用在家用電器/白色家電，TV，PC和服務器輔助電源，以及藍光播放器，機頂盒（STB）和LCD/LED監視器。本文介紹了ICE5AR4770AG產品亮點和主要特性，框圖，絕緣反激應用電路和非絕緣反激應用電路，以及15 W變頻空調輔助電源REF_5AR4770AG_15W1主要指標，電路圖，材料清單，變壓器結構圖和指標和PCB設計圖。

　　The ICE5xRxxxxAG is the 5th generation of fixed frequency integrated power IC （CoolSET?） optimized for off-line switch mode power supply in cascode configuration. The CoolSET? package has 2 separate chips inside; one is controller chip and the other is a 700 V/ 800 V CoolMOS? chip. The cascode configuration helps achieve fast startup. The frequency reduction with soft gate driving and frequency jitter operation offers lower EMI and better efficiency between light load and 50% load. The selectable entry and exit standby power ABM enables flexibility and ultra-low power consumption at standby mode with small and controllable output voltage ripple. The product has a wide operating range （10.0 ~ 25.5 V） of IC power supply and lower power consumption. The numerous protection functions with adjustable line over voltage protection support the power supply system in failure situations. All these make the 5th generation CoolSET? series an outstanding integrated power stage fixed frequency flyback converter in the market.

　　ICE5AR4770AG產品亮點：

　　? Integrated 700 V/ 800 V avalanche rugged CoolMOS?

　　? Enhanced Active Burst Mode with selectable entry and exit standby power to reach the lowest standby power 《100 mW

　　? Digital frequency reduction for better overall system efficiency

　　? Fast startup achieved with cascode configuration

　　? Frequency jitter and soft gate driving for low EMI

　　? Integrated error amplifier

　　? Comprehensive protection with input line over voltage protection

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

　　ICE5AR4770AG主要特性：

　　? Integrated 700 V/ 800 V avalanche rugged CoolMOS?

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

　　? Digital frequency reduction for better overall system efficiency

　　? Fast startup achieved with cascode configuration

　　? DCM and CCM operation with slope compensation

　　? Frequency jitter and soft gate driving for low EMI

　　? Built-in digital soft start

　　? Integrated error amplifier to support direct feedback in non-isolated flyback

　　? Comprehensive protection with input line over voltage protection， VCC over voltage， VCC under voltage， overload/open loop， over temperature and Current Sense （CS） short to GND

　　? All protections are in auto restart mode

　　? Limited charging current for VCC short to GND

　　ICE5AR4770AG應用：

　　? Auxiliary power supply for home appliances/white goods， TV， PC & server

　　? Blu-ray player， set-top box & LCD/LED monitor