LP8758-E0: About PGND

Yuto Sakai

Mastermind 6100 points

Part Number: LP8758-E0

Hi,

Could you tell me the infomation about LP8758-E0's PGND

Is the PGND(PGND_B01 and PGND_B23) of LP8758-E0 connected internal the device?

Best Regards,

Yuto Sakai

over 8 years ago

0 Brian Berner over 8 years ago

TI__Mastermind 30280 points

Sakai-san,

Thank you for posting your question on the LP8758-E0 in the e2e forum. Your thread has been assigned to the expert within TI, who will reply to your question as soon as possible and attempt to resolve your issue.

0 Yuto Sakai over 8 years ago in reply to Brian Berner

Mastermind 6100 points

Hi-Brian-san,

I understand.
I am waiting for reply.
I would like to receive an answer by tomorrow.

Best Regards,
Yuto Sakai

0 Eric Schulte over 8 years ago in reply to Yuto Sakai

TI__Prodigy 110 points

Sakai-san,

PGND_B23 and PGND_B01 groups are connected internally to the device and must be connected to PCB. We do not believe they are connected internally to each other and will confirm tomorrow.

Regards,
Eric

0 Jari Niemela13 over 8 years ago in reply to Eric Schulte

TI__Genius 13850 points

Hi Sakai-san,

PGND_B23 and PGND_B01 are NOT internally connected together.

So both grounds have to have strong connection to PCB ground plane.

Best regards,

Jari Niemelä

0 Yuto Sakai over 8 years ago in reply to Eric Schulte

Mastermind 6100 points

Hi Eric-san,

Thank you for your reply.
I am waiting for the confirmation result.

Best Regards,
Yuto Sakai

0 Brian Berner over 8 years ago in reply to Yuto Sakai

TI__Mastermind 30280 points

Sakai-san,

Jari Niemela13 has confirmed the answer to your question, in case you missed it.

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LP8758-E0: About PGND