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 enable portability 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.com 中文网：www.aoelectronics.cnALPS ADI IR JRC/NJR KEC OTAX Seoul Semiconductor TI Walsin Technology