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RT7738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, 並加入智慧型抖頻技術(SmartJitterTM)之專利於控制器中。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幹擾,亦可消除輸出抖頻紋波。同時,RT7738兼具連續導通模式(CCM)及谷底切換之多重模式控制,達到產品效能升級之效益。對於能效要求日益嚴苛之趨勢,RT7738提供產品研發設計者最佳之選擇。RT7738採用SOT-23-6封裝,為電流模式脈波寬度調變控制器。RT7738更結合完整安全保護機制,並提供多項可編程設計功能,包含:可編程傳輸延遲時間補償、可編程輸出過電壓保護、可編程外部過溫度保護、可編程大電容Brown-in/Brown-out保護。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。
具專利之智慧型抖頻技術►改善切換式電源產生之電磁幹擾►消除輸出抖頻紋波
兼具連續導通模式及穀底切換之多重模式控制器
超低啟動電流 (<3μA)
精準過載保護
可編程傳輸延遲時間補償
可編程輸出過電壓保護
可編程外部過溫度保護
可編程大電容Brown-in/Brown-out 保護
驅動能力:200mA/-300mA
高雜訊抗擾
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