Infineon ICE2QS03G35W砖形适配器参考设计.docx

Infineon ICE2QS03G35W砖形适配器参考设计Infineon公司的ICE2QS03G是准谐振PWM控制器,采用有源突发模式可获得低待机功耗(小于100mW),数字频率降低以获得较好系统效率,集成了500V起动单元,主要用在适配器/充电器,LCD监视器,机顶盒,辅助电源等.本文介绍了ICE2QS03G亮点和主要特性,框图,应用电路图以及采用ICE2QS03G, IPD60R600P6的35W砖形适配器参考设计板主要特性和指标,电路图,材料清单,变压器结构图,PCB元件布局图和PCB设计图.ICE2QS03G is a quasi-resonant PWM controller optimized for off-line switch power supply. The digitalfrequency reduction with decreasing load enables a quasi-resonant operation till very low load. As a result, theoverall system efficiency is significantly improved compared to other conventional solutions. The active burstmode operation enables ultra-low power consumption at standby mode with small and controllable output voltage ripple. Based on the BiCMOS technology, the product has a wide operation range (up to 25V) of ICpower supply and lower power consumption. The numerous protection functions give a full protection of thepower supply system in failure situations. All of these make the ICE2QS03G an outstanding controller for quasiresonantflyback converter in the market.ICE2QS03G产品亮点:Active burst mode for low standby powerQuasi resonant operationDigital frequency reduction for better overall system efficiencyIntegrated 500V startup cellPb-free lead plating, halogen free mold compound, RoHS compliantICE2QS03G主要特性: Quasi resonant operation till very low load Active burst mode operation at light/no load for low standby input power ( 87% Vin=100V Full Load with 0.11 cableInput Standby power 100mW no loadBenefits:Short Brick adapter enableportability and storageIntroduce DPAK into adapter designTarget Applications:Adapter35W砖形适配器参考设计板主要指标:图3.35W砖形适配器参考设计板外形图图4.35W砖形适配器参考设计板电路图图5.35W砖形适配器参考设计板PCB元件布局图(正面)图6.35W砖形适配器参考设计板PCB元件布局图(背面)图7.35W砖形适配器参考设计板PCB设计图35W砖形适配器参考设计板材料清单:图8.35W砖形适配器参考设计板变压器结构图AO-Electronics 傲壹电子 官网：www.aoelectronics.co