AM4376: RTC current consumption in backup mode

franziskus

Part Number: AM4376
Other Parts Discussed in Thread: TPS65218D0, TPS65910

Team,

how much current is drawn when using the internal RTC in backup mode?

PMIC TPS65218D0 does not have an RTC, so the AM437x internal RTC needs to be used.
In AM335x designs, TPS65910 does provide a low power RTC.

Thanks!

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

Hi,

You can refer to this document: processors.wiki.ti.com/.../Processor_SDK_Linux_Kernel_Performance_Guide

0 Frank Walzer over 7 years ago in reply to Biser Gatchev-XID

TI__Mastermind 44306 points

Hi Biser,

thanks a lot but that data is not sufficient. It is just an EVM measurement and apparently not accurate due to the measurement method (according to the coment).

For a customer trying to achieve a few years of battery backup operation with a small CR2032 or so we need a real (and smaller) value. Unfortunately I can't find this in datasheet as we spec just individual pins there. Do we have any more data from real use cases?

Best regards,

Frank

0 Biser Gatchev-XID over 7 years ago in reply to Frank Walzer

TI__Guru**** 393215 points

Frank, I will contact you offline.

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AM4376: RTC current consumption in backup mode