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tps43060上电空载短路

Other Parts Discussed in Thread: TPS43060

做同步升压时,tps43060一上电就短路,低端mos,芯片LDRV一上电就2点多V,直接使低端mos导通,对地短路。请教各位大神,有什么解决办法,我用weebench设计的,应该不会出现这种情况啊······希望大家指点下晚辈。。下面附原理图和pcb,

不好意思,前面传漏了

tps43060.PDF