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Product Spec Banner
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RT7740是改善了效率表现的多模态反激式开关电源PWM控制器，其中使用了立锜专有的智慧抖频（SmartJitter<SUP>TM</SUP>）技术，具有节能模式EMI辐射水准低的特性，同时消除了频率抖动对输出纹波的影响。它具有多种控制模式，可工作在连续导通模式、非连续导通模式和谷底切换的非连续导通模式，效率高，性能好。<Br>RT7740将电流模式PWM控制技术应用于反激式转换器中，同时还具有各种可调保护特性如延迟补偿机制、输出过压保护、周边过热保护、大电容Brown-in/Brown-out保护等，可被使用于要求性价比高、体积紧凑、电压范围宽的AC/DC应用中，其封装形式为SOT-23-6。<br>建议的接面温度范围为-40°C至125°C，而环境温度范围则为-40°C至85°C。
RT7740 电路图
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<div class="spec-list"><ul class="lv1"><li>使用立锜专有的SmartJitter<sup>TM</sup>技术 <ul class="lv2"> <li></li><li>降低了开关电源的EMI辐射 </li><li>消除了频率抖动导致的输出电压纹波 </li></ul> </li><li>工作于连续导通模式、非连续导通模式和谷底切换的非连续导通模式 </li><li>超低启动电流（< 3μA ） </li><li>精确的过流保护 </li><li>可调线路补偿 </li><li>可调输出过压保护 </li><li>可调周边过热保护 </li><li>可调大电容Brown-in/Brown-out保护 </li><li>200mA/-300mA驱动能力 </li><li>高杂讯抑制能力 </li></ul></div>
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RT7740 订购信息
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RT7740
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RT7740
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<div class="spec-list"><ul class="lv1"><li>开关模式AC/DC适配器 </li><li>笔记型电脑电源适配器 </li><li>电视机、显示器待机电源 </li><li>电脑周边 </li></ul></div>
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