- #1

likephysics

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Saw a calculation of stress in a datasheet (page14) here -

http://tinyurl.com/43465sv

(The device drives a Mosfet.)

How do you relate the P^2 t stress calculation in the datasheet to the Safe operating area curve in a Mosfet datasheet.

If the Stress is 20W^2 sec, then how do you interpret it? The Mosfet should be able to withstand 20watts for 1sec.

The watt square is confusing me. Why watt square*t? why not joules.

http://tinyurl.com/43465sv

(The device drives a Mosfet.)

How do you relate the P^2 t stress calculation in the datasheet to the Safe operating area curve in a Mosfet datasheet.

If the Stress is 20W^2 sec, then how do you interpret it? The Mosfet should be able to withstand 20watts for 1sec.

The watt square is confusing me. Why watt square*t? why not joules.

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