TPS56C231: PG behavior coupled with EN pin

SimonF

Part Number: TPS56C231

Tool/software:

Hi Team,

is the PG pin coupled with the EN pin? If enable is pulled low will the PG be also low even if the output voltage is within the PG windows (above 93%)? This can make a difference in the power down sequence when the output voltage ramps down slowly.

Best regards,

Simon

7 months ago

+1 Calan Elaya 7 months ago

TI__Genius 11345 points

Hi Simon,

For TPS56C231, PG pin is de-asserted if Vout is out of PGOOD threshold, or EN shutdown. Please see below from the datasheet:

Hope this helps.

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Best,

Calan

0 SimonF 7 months ago in reply to Calan Elaya

TI__Expert 3370 points

Hi Calan,

thanks for pointing that out! Would be helpfull to mention in the Powergood part of the datasheet as well.

Best regards,

Simon

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TPS56C231: PG behavior coupled with EN pin