T1042 Power Sequencing without Sleep

[akowalczyk]

Hello!

Quick question regarding power sequencing on the T1042NXE part. In the T1042 datasheet Section 3.2, it states that, when Deep Sleep is NOT used, VDD and VDDC should be sourced from the same power supply. In AN4825, it elaborates that 'VDDC should ramp up along with or before VDD power supply', and the note about Deep Sleep is not mentioned. 

We do not intend to use Deep Sleep, are we able to electrically connect VDD and VDDC to the same voltage rail? Or is there still risk in having both of these ramp up at exactly the same time?

[mrudangshelat-13 · Accepted solution]

Hi @akowalczyk,

As you are not using deep sleep, you just need to source VDD and VDDC from the same power supply. There is nothing else to take care of.

Regards,
Mrudang