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Product Spec Banner
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RT7791系列产品是针对USB PD或可程式设计电源适配器设计的PWM控制器，可与RT7202等控制器一道形成完整的电源解决方案，使最终方案具有效率高、满足安全标准、5V输出的待机损耗低于50mW等特性。</br>RT7791在设计上包含许多创新的理念，为宽输出电压的应用提供了良好的解决方案。通过DMAG引脚的使用，RT7791可以测知输出电压并据此调节环路增益以实现系统稳定、调节过压保护阈值以保护周边元件、调节电流限制阈值以满足受限电源的安全需求。</br>RT7791系列产品均具有完备的保护性功能设计，包括输入电容Brown-In/Brown-Out保护、VDD过压保护、输出过压/欠压保护、次级整流器短路保护和周边元件过热保护。为了实现恒定输出功率调节，连接在CS引脚的电阻可在全输入电压范围内被用于获得精确的线性补偿。当变压器次级侧的元件如RT7202、分流式调节器等出现失效故障时，RT7791还具有多项保护特性予以应对。</br>RT7791和RT7202结合在一起所形成的系统是稳定而又安全的，可以防范各种危险情形可能带来的伤害，其中就包括各种常用和未知的连接形式，如与设备的连接，与不同的电缆、插头、插座等的连接。
RT7791 电路图
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<div class="spec-list"><ul class="lv1"><li>针对输出功率的自我调整所做的优化 <ul class="lv2"> <li></li><li>集成了低压差稳压器 </li><li>VDD电压范围：10V至40V </li><li>自我调整式输出过压保护 </li><li>自我调整式过流保护 </li><li>自我调整式环路增益控制，确保环路稳定 </li></ul> </li><li>高效率设计 <ul class="lv2"> <li></li><li>轻载或空载时进入节能操作模式 </li></ul> </li><li>完备的保护特性 <ul class="lv2"> <li></li><li>输入电容Brown-In/Brown-Out保护 </li><li>含OTP引脚用于周边过热保护 </li><li>VDD过压保护 </li><li>输出过压、欠压保护 </li><li>次级整流器短路保护 </li><li>可调线路补偿 </li></ul> </li><li>其他 <ul class="lv2"> <li></li><li>5V输出待机模式功耗小于50mW </li><li>驱动器驱动能力：300mA/-300mA </li><li>采用SmartJitter<sup>TM</sup>技术 </li></ul> </li></ul></div>
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RT7791 订购信息
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RT7791
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RT7791
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<div class="spec-list"><ul class="lv1"><li>无线充电器 </li><li>工商业用低功率系统 </li><li>节能电器设备 </li><li>高性能DSP等负载点调节器 </li><li>无线LED照明系统中的MCU电源 </li></ul></div>
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