技术手册LMG5200的HI、LI引脚输入值范围-0.3V~12V,当我输入信号存在振铃,最低值达到-1~-2V,对芯片损坏或者严重性是怎样的
BUCK_HI\BUCK_LI存在振铃
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HI
pin脚电压超出范围是有损坏芯片风险的,需要尽量避免(-1~-2V的负电压异常)。
上电时序是需要注意的,一般启动时先供电,后驱动输入。关机时,先关驱动,后关供电。