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Product Spec Banner
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RT8302 是含有 4 個恒流吸入通道的 LED 驅動器，各通道間具有很好的電流一致性，每個通道都有 ±3% 的電流控制精度 ，輸出電流可通過 SPI 介面在 30mA~360mA 之間進行程式控制。它支援通過對 4 個獨立 PWM 信號發生器的占空比、週期和延時進行程式控制實現局部調光和掃描調光。當輸出電流為 150mA 時，輸出通道的電壓降為 0.5V，使之可以接受很寬的 V<sub>F</sub> 變化範圍。此外，RT8302 還提供動態餘量控制功能，能夠為 DC/DC 控制回路生成回饋信號並調節其輸出電壓。它具有 LED 開路/短路保護功能，當任何通道發生開路或短路情況時，FLT 引腳將被拉低，輸出通道將被分別關閉。其封裝形式有 WDFN-16L 5x5 和 DIP-18 兩種，可為不同的 PCB 空間提供最優的解決方案。
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍：5V~24V </li><li>輸入電壓範圍：30mA~360mA（8位解析度） </li><li>可程式控制通道電流 </li><li>低壓降：500mV@150mA </li><li>60mA~120mA 電流精度：±3% </li><li>60mA~120mA 電流一致度：±2% </li><li>LED 開路/短路故障檢測 </li><li>欠壓閉鎖和熱關機保護 </li><li>集成動態餘量控制（DHC） </li><li>支持 1D/2D/3D 調光（可程式控制通道延時，獨立的 PWM 占空比控制，自動 VSYN 同步） </li><li>靈活的菊輪鍊式 SPI 介面 </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>液晶電視、監視器背光 </li><li>DC/DC 或 AC/DC 的 LED 驅動器應用 </li><li>通用恒流源 </li><li>建築和裝飾用 LED 照明 </li><li>LED 路燈 </li></ul></div>
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