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Product Spec Banner
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RT7752系列产品是针对USB PD和可程式设计电源适配器应用而开发的PWM控制器，可与RT7202等控制器配合构成完整系统，具有转换效率高、符合各种安全标准的特性，在5V输出的应用中可以获得低于50mW的待机功率。</br>RT7752针对输出电压范围很宽的应用加入了一些开创性的设计，其DMAG端可对输出电压进行检测，在此基础上可对环路增益进行调节以实现系统稳定、对输出过压保护阈值进行调整以确保负载安全、调整电流限制阈值以符合受限电源 (Limited Power Source, LPS) 的安全需求。</br>RT7752也同时具有常规的电源保护特性如Brown-In/Brown-Out保护、VDD过压保护、输出过压/欠压保护、二次侧整流二极体短路保护、周边过热保护等。借助连接在CS端的电流检测电阻，RT7752可在全输入电压范围内获得精确的线路补偿，实现恒输出功率调节。对于二次侧所出现的故障，例如RT7202或分流调节器出现了故障，RT7752也能提供保护作用。</br>RT7752与RT7202的结合能带来强壮、安全的设计，可防范电源系统在与各种已知或未知的设备、电缆、插头座等连接时可能出现的各种错误所带来的安全风险。
RT7752 电路图
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<div class="spec-list"><ul class="lv1"><li>针对自我调整输出电源应用进行了优化 <ul class="lv2"> <li></li><li>VDD电压范围宽：10V至40V </li><li>自我调整输出过压保护 </li><li>自我调整过流保护 </li><li>自我调整环路增益 </li></ul> </li><li>转换效率高 <ul class="lv2"> <li></li><li>轻载、空载时自动工作于节能模式 </li></ul> </li><li>全面的保护 <ul class="lv2"> <li></li><li>输入电容Brown-In/Brown-Out保护 </li><li>VDD过压保护 </li><li>输出过压/欠压保护 </li><li>周边过热保护 </li><li>二次侧整流管短路保护 </li><li>可程式控制线路补偿 </li></ul> </li><li>其他特性 <ul class="lv2"> <li></li><li>5V电源待机功耗小于50mW </li><li>驱动能力：300mA/-300mA </li><li>使用SmartJitter™技术 </li></ul> </li></ul></div>
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RT7752 订购信息
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<div class="spec-list"><ul class="lv1"><li>USB PD电源和可程式设计电源适配器 </li></ul></div>
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