Hello,
(1) Is this operation no problem ?
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Hello,
Hi Ryuji,
Would it be possible to provide a schematic? This will help in understanding what is occurring in your application.
Very Respectfully,
Ryan
Hello Ryan san,
Hi Ryuji san,
I am trying to replicate the waveforms. Did you make any modifications to the EVM? Also, what is the status of J5, J6? Is C3 populated?
Very Respectfully,
Ryan
Hello Ryan san,
Hi Ryuji san,
I am unable to duplicate your waveform on the bench. I would suggest having the customer try a new EVM.
Very Respectfully,
Ryan
Hello Ryan san,
Hi Ryuji san,
Yes. Your waveform is unusual. Typical startup waveforms will look like Figure 13 in the datasheet and Figure 1 in the EVM's User's Guide.
Very Respectfully,
Ryan
Hi Ryuji san,
From your latest post it appears that the customer is supplying the EN pin with a voltage before Vin. This is not the way the device was designed to operate. Ven should be less than or equal to Vin at all times. Please see the page 5 of the datasheet (copied here for convenience).
Very Respectfully,
Ryan