Please give me your adivice.
Here are a simple circuit and power on timing what my customer is thinking.
I understand that VREF1 should be started up faster than VREF2 so that IC doesn't damage.
[1] VREF2 and EN is connected to VDUP via 210kohm, not 200kohm which is recommended.
As for this point, do you have any concern?
[2] At the worst case, VREF1 and VREF2 is started up at the same time.
I don't think that this timing is no problem. How do you think about this timing?
Best Regards,
Tamio
