LM5143-Q1: Schematic review

Frank QIN

Expert 8930 points

Part Number: LM5143-Q1
Other Parts Discussed in Thread: LM5143

Hi Team,

Could you please help to review this schematic of the LM5143-Q1? Many thanks!

Output current required 10A typ, and 30A peak( both channel)

LM5143_SCH.pdf

Frank

over 1 year ago

0 Orlando Murray over 1 year ago

TI__Mastermind 22301 points

Frank,

Please attach a quickstart calculator for this design:

https://www.ti.com/tool/LM5143DESIGN-CALC

How long are you expecting to supply 30A? That current is very large, single phase designs are not usually rated for that, due to inductor saturation, and FET temperature rise.

-Orlando

0 figo zhang over 1 year ago

Prodigy 20 points

Hi I assume it shall be no more than 3ms

How long are you expecting to supply 30A?

0 figo zhang over 1 year ago in reply to figo zhang

Prodigy 20 points

Hi TI expert, could you help to give your comments on schematics?

0 Orlando Murray over 1 year ago in reply to figo zhang

TI__Mastermind 22301 points

Hi Figo,

Please attach a quickstart calculator for this design:

https://www.ti.com/tool/LM5143DESIGN-CALC

This is important for us to understand your required specifications.

-Orlando

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LM5143-Q1: Schematic review