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LM5101B烧掉

Other Parts Discussed in Thread: LM5101B, UCC27211

我用两片LM5101B去驱动H桥MOS管,做一个D类功放,加上方波信号(150K方波,已经加了500ns死区延时),空载总电流300多毫安,驱动芯片发热严重,一会就烧掉了,换了一片芯片后,我先把方波信号频率降到10k没有问题,输出正常,但是频率增加到30看时驱动芯片又开始发热,后来加到100k时,一会又烧掉了,到底是怎么回事啊?求教!附件是功率级电路图。

H桥驱动.pdf