AM335x PMIC_POWER_EN timing characteristics in Power-Up Sequencing

Daisuke Maeda

Guru 20205 points

In Power-Up Sequencing, PMIC_POWER_EN ramp up after VDDS_RTC ramped up.

Is the time between VDDS_RTC and PMIC_POWER_EN defined?

Best regards,

Daisuke

over 11 years ago

0 Biser Gatchev-XID over 11 years ago

TI__Guru**** 393215 points

There is no such timing information in the AM335X documentation.

0 Daisuke Maeda over 11 years ago in reply to Biser Gatchev-XID

Guru 20205 points

Hi Biser,

Thank you for your reply.

I understand that any timing between VDDS_RTC and PMIC_POWER_EN is not defined.

Best regards,

Daisuke

0 peaves over 11 years ago in reply to Daisuke Maeda

TI__Guru 63125 points

This timing parameter is not defined in the data sheet, but PMIC_POWER_EN terminal should rise as soon as the VDDS_RTC and CAP_VDD_RTC supplies reach their recommended operating voltage.

Regards,
Paul

0 Daisuke Maeda over 11 years ago in reply to peaves

Guru 20205 points

Hi Paul,

Thank you for your reply. Sorry for my late reply.

Best regards,

Daisuke

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AM335x PMIC_POWER_EN timing characteristics in Power-Up Sequencing