LM5145: My LM5145 board doesn't work.

leng shen

Part Number: LM5145

Tool/software:

hi
I am working with LM5145 board.
But my LM5145 board doesn't work properly.
Input voltage is 48V and my design is 40V output.

But output is 0V and LM5145 IC is overheating.

Please review my schematic and help me.
Thank you.

https://ibb.co/gLW16L30

4 months ago

0 Taru Kapoor 4 months ago

TI__Genius 11645 points

Hi,

I cannot access the link that you have shared since it has been blocked by our IT department. Please share the file here.

I would also request you to fill in the design calculator of this device and share it with me: https://www.ti.com/tool/LM5145DESIGN-CALC

Thanks,

Best Regards,

Taru

0 leng shen 4 months ago in reply to Taru Kapoor

Prodigy 30 points

Here is my schematic and quickstart_calculator for my design.
Please review and let me know what wrong in my design.
Thank you.
1780.LM5145_quickstart_calculator_A5.xlsm

0 Taru Kapoor 4 months ago in reply to leng shen

TI__Genius 11645 points

Closing this thread since this is a duplicate of https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1517726/lm5145-my-lm5145-board-doesn-t-work

Thanks,

Best Regards,

Taru

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LM5145: My LM5145 board doesn't work.