EG1121开关电源芯片

  EG1121是一款高性能的原边控制器，其高精度的恒压恒流控制可用于充电器产品中。当把 SEL 接地时， 这款芯片也可以用作 LED 照明中的准谐振恒流拓扑应用。\n  在恒压模式下，EG1121 采用多模控制，其使用调幅调频混合来提高系统的效率和可靠性。\n  在恒流模式下，这款芯片采用脉冲频率调制和负载恒流补偿的方案。\n  本芯片实现无噪音工作和优化动态响应。利用集成的线损补偿功能，可获得高性能的恒压输出表现。\n  EG1121 有多种保护功能：VDD 欠压保护（UVLO）、 VDD 过压保护（OVP）、逐周期限流保护（OCP）、短路保 护（SLP）、 Gate 箝位和 VDD 箝位 ·支持反激和压降拓扑\n ·PSR 控制反激式（SEL 悬空）\n ·谐振降压恒流控制（SEL=GND）\n ·多模式原边调节\n ·无噪音操作\n ·优化动态响应\n ·待机功耗 \n\t\t\t   短路保护（SLP）\n\t\t\t   过温保护（OTP） \n\t\t\t   逐周期限流保护（OCP） \n\t\t\t   前沿消隐（LEB） \n\t\t\t   管脚悬空保护;

MultI-Mode QuasI-Resonance Interferometer

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