TPS51206: About startup sequence.

watanabe

Expert 1740 points

Part Number: TPS51206

Hi,

My customer has a question.

Q.Is there a sequence order?

We are about to launch in the following order in the current situation.
1. VDDQSNS / VLDOIN
2. VDD / S3 / S5

is there a problem?

Best Regards,

Watanabe

0 Edwin Zang over 8 years ago

Hello Watanabe,

Yes, you are right. The order you said is OK.

You can also refer the figure 23 of the datasheet.

Best regards.

0 watanabe over 8 years ago in reply to Edwin Zang

Expert 1740 points

Hi Edwin,

My customer has a new question.

Q.
Should S3 / S5 be connected to 3.3 V at 10 k?
Connect VDD directly to 3.3V.

Best regards,

0 Edwin Zang over 8 years ago in reply to watanabe

Hi Watanabe,

S3/S5 can be connected to 3.3V at 100k ohmor 500k ohm. The resister should be enough large.

VDD can be connected directly to 3.3V.

best regards.

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