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RT7789系列為強化高效能多重模式脈波寬度調變 (PWM) 之返馳式轉換控制器， 並加入立錡的零功率損耗技術 (SmartJitter<SUP>TM</SUP>) 和智慧型抖頻技術 (SmartJitter<SUP>TM</SUP>) 之專利。創新的零功率損耗技術整合HV裝置，提供出色的節能解決方案，創新的智慧型抖頻技術，不僅可降低系統進入綠能模式所造成之電磁干擾，亦可消除輸出抖頻紋波。同時，RT7789兼具多重模式控制方案，可在連續導通模式 (CCM) 於具谷底切換至非連續導通模式 (DCM) 控制，達到產品效能升級之效益。</br>RT7789為用於返馳式轉換器的電流模式脈波寬度調變控制器。RT7789更結合完整及可編程的安全保護機制，包含： brown-in/brown-out保護，VDD欠壓保護 (VDD OVP)，輸出過壓/欠壓保護 (輸出OVP / UVP)，次級整流器短路保護電路保護 (SRSP) 和外部過溫保護 (外部OTP)。對於恆定輸出功率調節，連接到CS引腳的電阻可用於在通用輸入電壓範圍內實現精確的線路補償。讓產品研發設計者得更靈活的設計應用對應的商品，以較少的零件數及較低的成本，開發設計高效節能AC-DC電源產品。本產品的封裝為SOP-8。
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<div class="spec-list"><ul class="lv1"><li>具專利之零功率損耗技術 <ul class="lv2"> <li></li><li>整合700V啟動裝置 </li><li>Brown-In/Brown-Out保護 </li></ul> </li><li>具專利之智慧型抖頻技術 <ul class="lv2"> <li></li><li>改善切換式電源產生之電磁干擾 </li><li>消除輸出抖頻紋波 </li></ul> </li><li>可在連續導通模式與具有谷底切換的非連續導通模式下操作 </li><li>精準過流保護 </li><li>可編程傳輸延遲時間補償 </li><li>可編程輸出過電壓保護和欠壓保護 </li><li>可編程外部過溫度保護 </li><li>驅動能力：300mA/-300mA </li><li>高雜訊抗擾 </li><li>符合RoHS規範，不含鹵素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>切換式AC-DC 適配器 </li><li>筆記型電腦適配器 </li><li>印表機適配器 </li></ul></div>
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