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TLK10031: About Power Dissipation on TLK10031

Part Number: TLK10031
Other Parts Discussed in Thread: TLK10232

To the person Concern.

Could you check which value is right for power dissipation?

In order to check power consumption, I refer to" Supply Curent" and " Power Dissipation on "5.3 Recommended Operating Conditions" of TLK10031 Datasheet.

Generally, Customer needs to know exact Current consumption  so as to select right  DC/DC, LDO devices. So the above parameteres are vey primary things to desing power tree.

But Two parameters seems to make different voice to customer.

From the table, nominal power dissipation( consumption) should 800mW and Max dissipation should be less than 1.15W.

But when I calcluated it based on P=VI. The Max Calculated power dissipation was almost reached up to 2.87W. It is 2.5 times over 1.15W.

Please let me know exact supply current specification for selecting appropriate DC/DC?

I searched similar qustion form E2E (https://e2e.ti.com/support/interface/f/138/t/571783?tisearch=e2e-sitesearch&keymatch=TLK10031). It didn't give right answer for me.

thank you

Best Regards

Mark Kim