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产品进行1.25KV电气强度测试后,TPS55340的不能正常启动

Other Parts Discussed in Thread: TPS55340

产品进行1.25KV电气强度测试后,产品电路中升压电路TPS55340不能正常启动,输出电压和输入电压几乎相等。输出电压等于输入电压减去肖特基二极管的结电压。然后,在过了大约半小时后,又可以正常启动,输出也正常了。我的升压是6-8V升压到24V.

请TI工程师尽快回复下,是什么原因造成的