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RT4503/A 是具备驱动10只串联 WLED 的高集成度 LED 驱动器，它包括了一个电流模式 Boost 转换器和 36V/1.2A 的功率开关。RT4503/A 可在 2.5V~5.5V 的输入电压范围内以 550kHz 的工作频率工作，使用一只电阻即可设定 LED 电流，回馈电压为 200mV。调光方面，RT4503A 支持32级脉冲调光法，RT4503 则支援 PWM 调光法，它们都对回馈系统的参考电压进行调节。
RT4503/RT4503A 电路图
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<div class="spec-list"><ul class="lv1"><li>输入电压范围：2.5V~5.5V </li><li>36V 开路保护电压，容许驱动10只 WLED </li><li>脉冲调光方式 </li><li>参考电压 200mV，精度 ±2% </li><li>550kHz 工作频率 </li><li>内建软启动 </li><li>过温保护 </li><li>内部补偿 </li><li>电流限制 </li></ul></div>
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RT4503/RT4503A 订购信息
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<div class="spec-list"><ul class="lv1"><li>行动电话 </li><li>数位相机 </li><li>可擕式设备 </li></ul></div>
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