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RT7331S是可調光定電流LED驅動器,它以准諧振模式工作,具有較高的效率表現。它使用初級側調整方式對輸出電流進行精確調節,無需使用次級側分流式調節器和光電耦合器,構成系統的元件數量少,成本低,節省板面空間。RT7331S支援使用類比信號進行調光操作,其輸出電流可用DIM端子上的PWM信號占空比或是平均值進行調節。RT7331S具有眾多的保護功能以確保產品的強壯,其中包括LED開路保護、LED短路保護、、輸出二極體短路保護、VDD欠壓鎖定保護、VDD過壓保護、超載保護、輸入欠壓/過壓保護、內部過熱保護和逐週期電流限制保護。
LED電流調節精度高
智慧CC/CV控制模式
調光範圍寬:1%~100%
准諧振工作模式
快速啟動
可調節CV閾值
400mA/-500mA吐納能力,軟盤機動獲得更好EMI性能
多種保護特性►LED開路保護►LED短路保護►超載保護►輸入欠壓/過壓保護►輸出二極體短路保護►VDD前壓保護►VDD過壓保護►內部過熱保護►逐週期電流限制保護
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