FM25W256-G Power dissipation required

Hi,

You can use the Pd = VDD * IDD formula to calculate power dissipation of the device. For example if typical VDD is applied to the IC the max current consumption at 1 MHz is 0.25 mA. So max power dissipation at this voltage will be

Pd = 3.3 * 0.25 = 0.825 mW

Similarly you can calculate Pd at other voltages(min, max).

You can also measure the current consumption at the supply pin and calculate power dissipation as an alternative. 

Let me check for the RQJB value internally.

Thanks,

Pradipta.

Hi Vishal,

We only mention the Theta Ja and Theta Jc parameter in the datasheet for the product line. That is how it was composed.

The theta Jb for the part will be 135 C/W.

Thanks,

Pradipta.

Hi,

The TJmax = Maximum Junction temperature. This is the maximum temperature that the device tolerates to guarantee
reliable operation. The system designer needs to ensure that TJ < TJmax to guarantee reliability.

For FRAM it is 125 C.

Thanks,

Pradipta.