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DLPA3000: 工作一段时间后,在不投影时光机LED依然会有微弱的亮光。测试发现DLPA3000内部MOS管异常

Part Number: DLPA3000

我们使用的外部pattern模式,DLP_ON 长时间为高电平。工作一段时间后会发现,在不投影时光机LED依然会有微弱的亮光。请问可能是什么原因导致?