Have some questions about CS output of Inteli-Phase devices, just take MP86934 as an example.
- See the emulated output current waveform in this figure, compared with SW waveform, could I know that why these two timings cannot match?(when SW becomes low, current should go downwards)
If the sensing current is not accurate as such poor, with huge delay of turn-off, how could it guarantee feedback performance and loop regulation? I’m afraid of the down slope and valley point accuracy.
- This device claims 2MHz switching capability, how to conclude this value? Due to all the internal latency inside(e.g. driving delay, dead time, CS delay)? If possible, I’d like to have a formula, or a figure showing how to calculate.