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TPS61196的问题,有TI的工程师吗

Other Parts Discussed in Thread: TPS61196

六路驱动变三路驱动,然后升压到110V左右,三路LED以随机的占空比1.25HZ律动闪烁,现在出现的问题是:刚开始闪烁时间短没什么事,但是闪烁时间稍微长一点TPS61196芯片就功能异常了,下次重新上电后芯片就点不亮灯(需要100V电压驱动)了,只有换新的芯片,这是什么问题?难道是我的思路错了吗?请指点下我的迷惑,谢谢了