[SI-LIST] Re: power consuming of IC in different temperature

Hi Zhangkun,

no one will give you an exact answer, but in simplicity a power 
consumption of IC is a sum of:
 - leakage currents (which vary a lot with temperature, even double 
every 10oC)
 - dynamic switching currents dependent of switched capacitance which do 
not vary too much with temperature
 - resistive loads/terminators (in case of IO power) which also should 
not vary too much with temperature

I hope it helps,
Robert

Zhangkun wrote:
> Dear all
>  
> As we known, the power consuming of IC in different temerature is different.
> If the enviroment temperature is from -40 to +85 centigrade, how much is the
> differenc between highest and lowest power consuming?
>  
> Now I could get the power consuming in 25 centigrade. I want to get the
> limitation for the power module.
>  
> Any advice would be helpful.
>  
> Best Regards
>  
> Zhangkun
> 2008.7.25
>
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