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DLP5530PROJQ1EVM: LED驱动板器件烧坏问题

Part Number: DLP5530PROJQ1EVM
Other Parts Discussed in Thread: LM3409

我们经常买DLP5530的EVM整个光机,其中发现LED驱动板经常会烧坏,分析有2个不显示的就是驱动板上D4二极管损坏,导致启动了过流保护关闭了Q4 MOS不输出电压驱动LED,我看这个器件规格书是反向45V耐压,接了PD的光机,是不是反向耐压不够,瞬间过高反向耐压击穿,为啥会经常出现,是不是上电瞬间电流很大,程序检测到PD后降低电流,导致D4旁边的电感产生一个很高的反向电压击穿D4,请协助分析,太经常出现了,感谢