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BQ40Z50: BQ40Z50-R1

Part Number: BQ40Z50

Hi,

We are using BQ40z50-R1 in our design.

In this we need to calculate the oja (Junction to ambient) temperature.In the datasheet it is specified as 58°C/W for device mounted on a 1-in2 (6.45-cm2 ),

But in our design it is less than 1-in2,which will be around 0.31 inch square.

For this how we can calculate the exact (Junction to ambient temperature) for 0.31 inch square.

Kindly do the needful.

Regards

ANANDAN N