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An 470nF is attached, together >>>> with an >>>> open drain output and only the internal pull-up. So yes ~113ms rising >>>> time >>>> until 0.7 x VCC. >>> >>> I don't suppose you can have that capacitor reduced or better yet, some >>> external pull up added, can you ? >> >> Actually our HW engineers have implemented a similar RC circuit to >> provide a hardware delay for the EN signal. I think this is due to a >> design note in the datasheet (see chapter 7.4.1) and therefore it's >> probably widely spread. > > If I read section 7.4.1 correctly, it would be enough to just add delay > Ten=1ms instead of the capacitor, right? And that would be > device-specific. But if one chooses the capacitor solution, it becomes > now board specific. Yes, seems like that's the case.