TPS659037EVM-090: about "Powering up the Device"

ACGUY

Hello E2E,

I read the user's guide of TPS659037EVM-090.
www.tij.co.jp/.../sliu016.pdf
"All sequenced rails will power up to the predefined voltage."

About the 4th item "Powering up the Device", I could not to understand for each railsoutput timing.

- Does EVM output each rail voltage by the operation of No. 5 of "4 Powering up the Device"?
- When using EVM, which is the operation to output all rails with EVM on GUI?

Regards,
ACGUY

over 3 years ago

0 Krishnamurthy Hegde over 3 years ago

TI__Expert 8730 points

Hi, Applications engineer supporting this device is based in Dallas and he will provide the feedback later today, during his working hours.

Regards,

Murthy

0 ACGUY over 3 years ago in reply to Krishnamurthy Hegde

Guru 11170 points

I look forward to reply.

+1 Mahmoud Harmouch over 3 years ago

TI__Mastermind 26340 points

Hello,

Following EVM user's guide item# 4, the device will power up and the output rails are at the levels defined by the OTP. The output rails can be changed by the GUI through I2C. I hope this answer your question.

Regards

0 ACGUY over 3 years ago in reply to Mahmoud Harmouch

Guru 11170 points

Hello,

Thank you for reply. Can I asking a question again?
In Table 5-9 "ON Request", when input HIGH in POWERHOLD (GPIO_7), you will be notified of the ON request.
Is it possible to turn PMIC on / off without using PWRON or RPWRON?

Best regards,
ACGUY

0 ACGUY over 3 years ago in reply to Mahmoud Harmouch

Guru 11170 points

Hi, Marmoud

How is the question that I asked going？
Your advice would be very appreciated.

Regards,
ACGUY

0 Layne J over 3 years ago in reply to ACGUY

TI__Genius 12735 points

Hi ACGUY,

Mahmoud is out of office this week. Let me look over this thread and I will provide an update tomorrow.

Best regards,

Layne J

0 Layne J over 3 years ago in reply to ACGUY

TI__Genius 12735 points

Hi ACGUY,

If you look at table 5-11 that contains all of the OFF Requests. If you would like to use POWERHOLD to turn the device on and off that is a possibility. You can also use the POWERDOWN pin to turn the PMIC off if that is desired.

Best regards,

Layne J

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TPS659037EVM-090: about "Powering up the Device"