LM43602: Vin absolute maximum rating

Gabriele Clapier

Intellectual 1280 points

Part Number: LM43602

Hi,

in the LM43602 datasheet the absolute maximum rating of the Vin is 42V "At max duty cycle of 0.01%" (note 2).

What does it mean?

What does happen if 36V<Vin <42V ?

Thanks

Gabriele

over 6 years ago

0 Samuel Jaffe over 6 years ago

TI__Mastermind 25590 points

Gabriele,

I've inquired about the 0.01% and I'll get back to you when I have an answer.

We recommend running all of our parts at or below the recommended maximums. Higher (approaching absolute maximums) may reduce lifetime of the part.

-Sam

0 Samuel Jaffe over 6 years ago in reply to Samuel Jaffe

TI__Mastermind 25590 points

Gabriele,

The 0.01% refers to the duty cycle of operating in abs max vs operating in recommended max. So the part is spec'd to be able to handle up to 42V for short periods of time. As long as it's only 42V for 0.01% of the time, the part will operate normally.

-Sam

Power management

Power management forum

LM43602: Vin absolute maximum rating