LM5116: Is the internal linear reg disabled when EN is pulled low?

Dan Meeks58

Prodigy 230 points

Part Number: LM5116

When EN is pulled low, is the internal 7.4V regulator disabled?

How about when UVLO is low?

over 7 years ago

0 David Baba over 7 years ago

TI__Mastermind 40040 points

Hello Dan.

With EN low the VCC Reg is disabled.

With UVLO Low VCC reg is enabled.

Hope this helps?

David.

0 Dan Meeks58 over 7 years ago in reply to David Baba

Prodigy 230 points

Perfect thanks.

I know it's an old part but it would be nice if this was in the data sheet, maybe in the pin descriptions, but also a notation on the block diagram. As it's shown it doesn't appear that anything interacts with the linear reg.

Dan

0 David Baba over 7 years ago in reply to Dan Meeks58

TI__Mastermind 40040 points

Hi Dan,

It does mention the UVLO with VCC Enabled. Agreed, it is not so clear regarding VCC and EN pin.

Thanks.

David.

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LM5116: Is the internal linear reg disabled when EN is pulled low?