Need help on schematics verification

Aravind .R

Other Parts Discussed in Thread: TPS63020

Dear All,

one of my customer is doing POS based on EPOS reference design from TI. Instead of 7.4V battery, they have selected 3.7V battery and completed the power section. please find the attached schematics in PDF and also the voltage and current of each and every component in the schematics is mentioned in the excel sheet. kindly help to review it and also please let me know whether the attached circuit will work for 8 hours backup.

Regards,

1348.6278.POS-PWR-ANALYSIS-22-07-2014.xls 7711.1401.POWER POS 13.pdfAravind

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Moving this to the PMU forum.

0 Michael Green over 9 years ago

TI__Genius 16870 points

Hi,

I see that some of your power is from discrete converters. I am not the expert in those devices but, noticed that if you are not using the PG signal output from the TPS63020 you would probably not need the pull up resistor R22.

Otherwise, to get feedback on those deivces, you might want to make a duplicate post on the non-isolated DC/DC forum. http://e2e.ti.com/support/power_management/non-isolated_dcdc/f/196.aspx

As for the PMIC feedback, that will come shortly.

0 Aravind .R over 9 years ago in reply to Michael Green

Genius 3175 points

Dear sir,

Thanks for your reply. Looking forward for you valuable reply on the PMIC schematics verification also and if any changes that can be made in the design, kindly suggest.

Regards,

Aravind

Power management

Power management forum

Need help on schematics verification