AM1707: power consumption on +1.8V power rail

tung ngo

Prodigy 210 points

Other Parts Discussed in Thread: AM1707

Dear,

AM1707: What is the power consumption of +1.8V rail in three case below:

Using USB2.0 OTG only
Using USB2.0 OTG & USB1.1
USB functions are not used.

Thanks

Tung

over 12 years ago

0 Mukul Bhatnagar over 12 years ago

TI__Guru* 80875 points

You should be able to deduce this by going through the power consumption summary wiki and the power estimation spreadsheet for AM17xx

http://processors.wiki.ti.com/index.php/AM17x_Power_Consumption_Summary

If you do not have USB in your design, you will not need a 1.8V supply as except for USBs, all other IOs are 3.3V.

Regards

Mukul

0 tung ngo over 12 years ago in reply to Mukul Bhatnagar

Prodigy 210 points

Hi Nuku,

In our design we use 1 USB0 (USB2.0 OTG), but in power spreadsheet I don't see the power consumption on +1.8V rail.

Picture attachment is power spreadsheet that I calculated, please have a look.

Thanks

Tung

0 Mukul Bhatnagar over 12 years ago in reply to tung ngo

TI__Guru* 80875 points

Hi Tung

For the USB2.0 or USB1.1 row, on column L there is a drop down menu to change from No Activity to PHY ENABLE or HS/FS Transmit/Receive. Configure those cells to assess the power on the 1.8V rail for the various USB modes.

Regards

Mukul

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AM1707: power consumption on +1.8V power rail