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RT8547 是高效率、大電流的升壓型閃光燈LED驅動器，能夠提供最大1.6A輸出電流，是在所有的單節鋰離子/聚合物電池供電產品的LED照相閃光燈應用的理想電源解決方案。</br>RT8547藉由切換內部高端和低端功率開關開關電晶體來保持輸出電流調節，功率開關脈寬調製頻率為2MHz的固定頻率。高操作頻率使RT8547可使用較小的電感和輸出電容，適用於小型電池供電的應用。</br>單線調光控制功能設計用於通過閃光燈LED的FLSET引腳設定閃控模式電流層級。</br>RT8547包含過壓保護、過流保護和過溫保護功能以保護器件免受輸出開路和短路情況。內置的內部軟啟動控制電路防止在啟動期間衝擊電流過大。在關斷模式下，電源消耗僅2μA。
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<div class="spec-list"><ul class="lv1"><li>2.8V~5.5V 輸入電壓範圍 </li><li>電流精度在5%之內 </li><li>高達1.6A調節輸出電流 </li><li>使用小型電感，效率可高達 88% </li><li>2MHz開關頻率 </li><li>分離的閃控和手電筒模式電流 </li><li>可程式設計的安全計時器 </li><li>輸入電流限制 </li><li>LED開路的過壓保護 </li><li>過溫保護 </li><li>確實斷開負載連接 </li><li>關機電流 : <2μA </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>行動電話 </li><li>數位相機 </li><li>PDA及智慧型手機 </li><li>可擕式儀器 </li><li>高性能 DSP、FPGA和 ASIC供電 </li></ul></div>
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