LM5156H: Webench design

Jeff YANG

Mastermind 7990 points

Part Number: LM5156H
Other Parts Discussed in Thread: LM5155

Hi,

May I know below understanding for transformer design is correct?

Thanks!

Jeff

over 3 years ago

0 Jeff YANG over 3 years ago

Mastermind 7990 points

5857.WBDesign13.pdf

+1 EM over 3 years ago in reply to Jeff YANG

TI__Genius 11215 points

Hello,

Thanks for your message. Is there anything specific about the transformer that concerns you in this design? I'm looking forward to your answer.

Kind regards,
EM

0 Jeff YANG over 3 years ago in reply to EM

Mastermind 7990 points

Hi EM,

No specific concern, I will follow the webench design.

Just want to know the T1 define as my red mark.(NS1/NS2/NP)

Thanks!

Jeff

0 EM over 3 years ago in reply to Jeff YANG

TI__Genius 11215 points

Hello Jeff,

Thanks for your response. The winding on the Vin side is the primary and the one on the Vout side is the secondary side winding, like in this app note for LM5155 at page 12 (a very similar device): https://www.ti.com/lit/an/snva866/snva866.pdf

Kind regards,
EM

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LM5156H: Webench design