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LM3409: 随时间增长,输出电流慢慢增长

Part Number: LM3409

嗨,专家好。我们使用LM3409驱动LED时发现,如图:LED开启时刻的平均电流为778mA,12小时后涨到了约785mA,电流增长了约1%。请问这个现象有办法解决吗?我们希望长期使用时平均电流能稳定在0.1%左右。