DS92LX1621: DS92LX1621 1.8V maximum power consumption

Jacques Paris1

Prodigy 40 points

Part Number: DS92LX1621

Hello,

We are designing a board around a DS92LX1621DSE/NOPB.

PCLK will be a 50 Mhz external clock.

A 1.8V voltage regulator will power VDDCML, VDDPLL, VDDT and VDDD.

What is the worst case current that the regulator needs to provide to the DS92LX1621DSE/NOPB?

In the datasheet only IVDDT is specified at 90mA maximum.

over 1 year ago

0 Ryan Kitto over 1 year ago

TI__Genius 16925 points

Hi Jacques,

Let me ask some of my colleagues to see if they know where I can find more information regarding worst-case current consumption, and I will let you know what I find by 2/14.

Thanks,

Ryan

+1 Ryan Kitto over 1 year ago in reply to Ryan Kitto

TI__Genius 16925 points

HI Jacques,

Looking at the Datasheet, Iddt is defined as Serializer Total Supply Current Mode, so 90mA should be the maximum current needed to power the device in a worst case scenario.

Please let me know if you have any other questions or concerns.

Thanks,

Ryan

0 Jacques Paris1 over 1 year ago in reply to Ryan Kitto

Prodigy 40 points

Thank you Ryan.

The 1.8V power supply will be sized accordingly.

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DS92LX1621: DS92LX1621 1.8V maximum power consumption