我根据手册的推荐设计选取了慢启动电容Css值为10nf,根据手册所描述,输出电源上电时间就应为10ms以内,但是我实际测得上电时间为31ms,这是为什么呢?
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Hi
软起动时间,只与芯片内部SS电流,以及SS电容有关,建议你逐一排除(如果确认SS电容没有问题,可以更换芯片看看)。