LM5069: Need design review

Shyam Thillainathan

Prodigy 150 points

Part Number: LM5069

Need design review for the below design:

Calculator: 1145.LM5069_Design_Calculator_REV_C_SQJQ410EL-T1_GE3_20220104.xlsx

over 3 years ago

0 Avishek Pal over 3 years ago

TI__Mastermind 39270 points

Hi Shyam,

Thanks for reaching out to us. We will review the design and get back to you tomorrow.

0 Shyam Thillainathan over 3 years ago in reply to Avishek Pal

Prodigy 150 points

Thanks Avishek

0 Shyam Thillainathan over 3 years ago in reply to Shyam Thillainathan

Prodigy 150 points

Hi Avishek,

Would like to order the FET's immediatley. So do you think this FET is a good fit?

0 Avishek Pal over 3 years ago in reply to Shyam Thillainathan

TI__Mastermind 39270 points

Hi Shyam,

I just reviewed the design calculator only to verify the MOSFET SOA margin. MOSFET looks fine to me. Please see the modified design calculator and change the schematic accordingly. Then I will review the schematic and share my observations.

LM5069_Design_Calculator_SQJQ410EL-T1_GE3_Edited by TI.xlsx

0 Shyam Thillainathan over 3 years ago in reply to Avishek Pal

Prodigy 150 points

Hi,

Here are the final designs:

48V, 3A Schematic:

48V, 3A LM5069 Calculator:

LM5069_Design_Calculator_48V_3A_20211225.xlsx

48V, 30A Schematic:

48V, 30A LM5069 Calculator:

LM5069_Design_Calculator_48V_30A.xlsx

0 Avishek Pal over 3 years ago in reply to Shyam Thillainathan

TI__Mastermind 39270 points

Look fine to me...

0 Shyam Thillainathan over 3 years ago in reply to Avishek Pal

Prodigy 150 points

Thank you. Will send the layout file for review shortly.

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LM5069: Need design review