WEBENCH® Tools/LM62440-Q1: ambient temperature

Victor Levy

Intellectual 2436 points

Part Number: LM62440-Q1
Other Parts Discussed in Thread: LM61460, LM61460-Q1

Tool/software: WEBENCH® Design Tools

Hello ,

Just wanted to make sure as this device full datasheet is not out yet,

when I try to simulate at 90 ambient temperature this simulation does not work,

is this device not designed to work at this temperature?

If not what automotive device would you suggest that has VIN MAX 24, vout 3.3 @>4A and has best temperature value and small form size?

over 5 years ago

0 Daniel Li14 over 5 years ago

TI__Mastermind 27470 points

you can choose LM61460 running at 400Khz . it will a good trade off between temperature performance and size.

Thanks

0 Victor Levy over 5 years ago in reply to Daniel Li14

TI__Intellectual 2436 points

Thank you Danilel,

As I understand this device will not be compatible at 90 degrees ambient temperature?

0 Marshall_Beck over 5 years ago in reply to Victor Levy

TI__Mastermind 35210 points

Hello Victor,

I am glad to see you are looking deeper in to understanding device for your customer's application.

Please look at derating curves contain in applications section of LM61460-Q1 datasheet.

BU stands behind the numbers contained in the curves. Better thermal results can be achieved with denser layer count or larger traces and copper planes attached to IC landing pads.

Power management

Power management forum

WEBENCH® Tools/LM62440-Q1: ambient temperature