[原创] Infineon ICE5QSAG 50W开关电源(SMPS)解决方案

Infineon公司的ICE5QSAG是第五代准谐振PWM控制器,有源突发模式使得最低待机功率小于100mW,数字频率以达到较好的系统效率,具有众多的保护功能,主要用在家用电器/白色家电,TV,PC和服务器的辅助电源,蓝光播放器,机顶盒和LCD/LED监视器.本文介绍了ICE5QSAG产品亮点,功能框图,应用电路图以及采用ICE5QSAG和IPA80R650CE的 50 W 12 V 5 V SMPS演示板主要特性和指标,电路图,材料清单,变压器架构图和PCB设计图.

The Quasi-Resonant, ICE5QSAG is the 5th generation of quasi-resonant 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.

ICE5QSAG产品亮点:
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