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ucc27210没有输出

Other Parts Discussed in Thread: UCC27210

在PCB中 将HB-HS管脚间的电容C8,已经移至贴近两管脚。

请问一下,我采用ucc27210作为驱动芯片,供电12V,电源与地之间的电容为1uF,HB与HS之间电容为0.1uF。

测量发现:

1.芯片供电正常;

2.输入管脚HI和LI有波形,正常;

3.HB-HS间没有稳定电压值,只出现间隔的几百毫伏尖峰毛刺;

4.没有输出

请问这个应该怎么解决?谢谢!