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TeMa_2997106
Level 6
10 likes received 10 solutions authored 250 replies posted
Level 6

How should I calculate the power consumption? Is there a spreadsheet that can be calculated?

The data sheet have IDDs. However, the number of descriptions is small and the conditions are quite limited.

Thanks,
Tetsuo

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1 Solution
TeMa_2997106
Level 6
10 likes received 10 solutions authored 250 replies posted
Level 6

Pradipta-san,

Do Iddpm need to be considered? In my opinion, Itot is expressed by the following equation.

  Itot = Iddo + Iddpm

And in the data sheet, there is no mention of frequency other than CMOS. I want to use a differential output(LVDS). Is Iddo frequency dependent when using differential outputs?

Thanks,
Tetsuo

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PradiptaB_11
Moderator
Moderator 500 replies posted 250 solutions authored 250 replies posted
Moderator

Hi @TeMa_2997106 ,

You can refer to our knowledge base article as below which also contains the formulas for calculation the power dissipation.

https://community.infineon.com/t5/Knowledge-Base-Articles/Calculation-of-Junction-Temperature-for-Cl....

Thanks,

Pradipta.

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TeMa_2997106
Level 6
10 likes received 10 solutions authored 250 replies posted
Level 6

Pradipta-san,

Is the "IDDO" in the CY27410 datasheet Idc or Iac? If it is equivalent to Itot, should I just look at IDDO?

Thanks,
Tetsuo

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PradiptaB_11
Moderator
Moderator 500 replies posted 250 solutions authored 250 replies posted
Moderator

Hi @TeMa_2997106 ,

IDDO will be the total current. 

Thanks,

Pradipta.

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TeMa_2997106
Level 6
10 likes received 10 solutions authored 250 replies posted
Level 6

Pradipta-san,

Do Iddpm need to be considered? In my opinion, Itot is expressed by the following equation.

  Itot = Iddo + Iddpm

And in the data sheet, there is no mention of frequency other than CMOS. I want to use a differential output(LVDS). Is Iddo frequency dependent when using differential outputs?

Thanks,
Tetsuo

0 Likes
TeMa_2997106
Level 6
10 likes received 10 solutions authored 250 replies posted
Level 6

Pradipta-san,

Please let me know the current status.

Thanks,
Tetsuo

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