Infineon ICE2QR1765Z 20W5V离线开关电源解决方案

Infineon公司的ICE2QR1765Z是CoolSET®-Q1系列器件,是准谐振的功率集成电路,采用BiCMOS技术,集成了带起动单元的650V CoolMOS,能工作在非常低的负载,突发模式的待机功耗小于0.1W,内置了数字软起动,主要用在LCD监视器, DVD R/W, DVD,蓝光DVD,机顶盒等.本文介绍了ICE2QR1765Z产品亮点和主要特性, 方框图和典型应用电路以及20W/5V评估板主要指标,电路图, 变压器结构图和材料清单,PCB布局图.

The CoolSET®-Q1 series (ICE2QRxx65Z) is the first generation of quasi-resonant integrated 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. Operating 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 25V) of IC power supply and lower power consumption. It also offers many advantages such as quasi-resonant operation till very low load which increases the average system efficiency,

Active Burst Mode operation which enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple, etc.

ICE2QR1765Z产品亮点:

• Quasi resonant operation
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