LM5010A: Q0 version

Umberto Frangi

Part Number: LM5010A

Hi,

I would like to know how you can guarantee grade 0, that requires +150 degrees AMBIENT temperature and the datasheet specifies +150 degrees JUNCTION as max.

In this situation the device should have 0 W power dissipation.

Thanks

Umberto

over 7 years ago

0 Frank De Stasi over 7 years ago

TI__Guru* 85775 points

The maximum junction temperature is 150C; that is the limiting factor.

0 Umberto Frangi over 7 years ago in reply to Frank De Stasi

TI__Expert 4045 points

Ok.
Then how can you guarantee grade 0, that requires 150 degrees ambient?
Thanks
Umberto

0 Frank De Stasi over 7 years ago in reply to Umberto Frangi

TI__Guru* 85775 points

This is not guaranteed. Only the max junction is guaranteed.

0 Umberto Frangi over 7 years ago in reply to Frank De Stasi

TI__Expert 4045 points

Frank,

if we print on the first page of datasheet that the device is Q0 guaranteed and we have a dedicated part number for this, we should have qualified it according to AEC-Q100 specifications, that say that the device should work at 150 degrees AMBIENT at least for the required mission profile.

Is there any other Q0 qualified switching regulator with similar features, already available or in qualification?

Thanks

Umberto

0 Frank De Stasi over 7 years ago in reply to Umberto Frangi

TI__Guru* 85775 points

I am not aware of any device that will operate at 150C ambient and allow much dissipation.
However, I will pass this on to our Apps manager. He may be able to help you.

0 David Baba over 7 years ago in reply to Frank De Stasi

TI__Mastermind 40410 points

Thanks Frank,

Sorry Umberto,

The LM51010A is the only 75V device with a Tj max of 150C.

David.

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LM5010A: Q0 version