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Max V static VCCINT current higher than expected

Altera_Forum
Honored Contributor II
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Hi, 

 

Has anyone else experienced higher than expected static current consumption on the VCCINT supply for Max V devices? 

 

I am prototyping with the 5M240ZT100C5N part. The PowerPlay analyzer says I should have about 0.02mA of static VCCINT current. However, I am measuring more like 4.5mA. Dynamic current is as expected. 

 

Nothing else is connected the 1.8V regulator. I am wondering if these devices are meeting their static power spec. 

 

Thanks, 

Tyler
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Altera_Forum
Honored Contributor II
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Do you have floating inputs or inputs with pull-up connected to ground?

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Altera_Forum
Honored Contributor II
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Hi FvM, 

 

Thanks for the response. 

 

No floating inputs or grounded pull-ups. 

 

Also, this high static power consumption is for 1.8V Core power supply. 

 

Regards, 

Tyler
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Altera_Forum
Honored Contributor II
321 Views

 

--- Quote Start ---  

Also, this high static power consumption is for 1.8V Core power supply. 

--- Quote End ---  

 

Yes. The pull-ups won't matter. Floating inputs could cause oscillations that also effect the idle current. 

 

You should ask Altera support.
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