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RT4533/A 是一款高度集成的 LED 驱动 IC,可驱动 10 颗串联 WLED。它由电流模式升压转换器组成,并集成 36.5V/1.2A 功率开关。RT4533/A 支持 2.5V 至 5.5V 的宽输入电压范围,并以 1.1MHz 固定频率工作。LED 电流通过外部电阻设置,反馈电压调节至 200mV / 300mV。在亮度调光方面,RT4533/A 支持 PWM 调光,借此决定反馈参考电压。
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<li class="mv5"> 输入电压范围:2.5V~5.5V</li><li class="mv5"> 36.5V 开路保护电压,容许驱动10只 WLED</li><li class="mv5"> PWM调光控制</li><li class="mv5"> 参考电压 200mV/300mV,精度 ±2%</li><li class="mv5"> 1.1MHz 工作频率</li><li class="mv5"> 内建软启动</li><li class="mv5"> 过温保护</li><li class="mv5"> 内部补偿</li><li class="mv5"> 电流限制</li><li class="mv5">符合 RoHS 规范,不含卤素</li>
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<li class="mv5"> 手机</li><li class="mv5"> 数码相机</li><li class="mv5"> 便携式设备</li>
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