原标题：Infineon ICE5QR1070AZ33W电冰箱辅助电源设计方案

　　infineon公司的ICE5QR1070AZ是第五代准谐振CoolSET系列产品,封装内有两个芯片:控制器芯片和HV MOSFET芯片.器件包括700 V/800 VCoolMOS,采用突发模式可使最低功耗小于100mW,并具有低的EMI,主要用在家用电器/白色家庭,TV,PC和服务器的辅助电源,以及蓝光播放器,机顶盒和LCD/LED监视器.本文介绍了ICE5QR1070AZ产品亮点和主要特性,框图和应用电路,以及简化冰箱系统框图,33W电冰箱辅助电源主要指标,电路图,材料清单,变压器指标图和PCB设计图.

　　The Quasi-Resonant CoolSET™- (ICE5QRxxxxAx) is the 5th generation of Quasi-Resonant integrated power IC optimized for off-line switch power supply in cascode configuration. It is housed in single package with 2 separate chips; one is controller chip and other is HV MOSFET chips. The IC can achieve lower EMI and higher efficiency with improved digital frequency reduction through the proprietary novel Quasi-Resonant operation. The enhanced Active Burst Mode enables flexibility in standby power range selection. The product has a wide operation 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 CoolSET™ (ICE5QRxxxxAx) series an outstanding integrated power device in Quasi-Resonant flyback converter in the market.

　　ICE5QR1070AZ产品亮点:

　　Integrated 700 V/800 V avalanche rugged CoolMOS™

　　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

　　ICE5QR1070AZ主要特性:

　　Integrated 700 V/800 V avalanche rugged CoolMOS™

　　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 and CS (Current Sense) short to GND

　　Limited charging current for VCC short to GND

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

　　ICE5QR1070AZ应用:

　　Auxiliary power supply for Home Appliances/white Goods, TV, PC & Server

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

　　With the growing household trend for internet-connected devices, the new generation of home appliances such as refrigerators are equipped with advanced features which often include communication capability, such as wireless communication, touchscreen display and sensors. These will transform a static product into an interactive and intelligent home appliance, capable of adapting to the smart-home theme. To support this trend, Infineon has introduced the latest fifth-generation QR CoolSETTM to address this need in an efficient and cost-effective manner.

　　An auxiliary SMPS is needed to power the various modules and sensors, which typically operate from a stable DC voltage source. The Infineon CoolSETTM (as shown in Figure 1) forms the heart of the system, providing the necessary protection and AC/DC conversion from the mains to multiple regulated DC voltages to power the various blocks.

　　图. REF_5QR1070AZ_33W1外形图

　　REF_5QR1070AZ_33W1主要指标:

　　REF_5QR1070AZ_33W1材料清单:

　　详情请见:

Infineon-ICE5QRxxxxAx-DS-v02_10-EN.pdf

Infineon-ApplicationNote_ReferenceDesign_REF_5QR1070AZ_33W-AN-v01_00-EN.pdf