TLC6C5712-Q1: ERR (open-drain) pull-up while Vcc=OFF

NOBUO FUJIHARA

Part Number: TLC6C5712-Q1

Hi Team,

My customer asked following question. Could you support on this?

Customer's system turns off VCC of TLC6C5712 while sleep mode, but pull-up supply for ERR output is still active.

In clause 6.1 it describes Max value of "ERR open-drain output" being 7V, so can we say pulling-up with 5V while VCC =OFF is no problem?

Best regards,

0 Anda Zhang over 6 years ago

Hi Fujihara-san,

Yes, there is no issue to pull up the ERROR within the max rating.

0 NOBUO FUJIHARA over 6 years ago in reply to Anda Zhang

Hi Anda-san,

Customer has additional concerns in this use case.

May I confirm there is no leakage path from ERR to Vcc or other pin under ERR pulled-up and Vcc turned off condition?

Best regards,

0 Anda Zhang over 6 years ago in reply to NOBUO FUJIHARA

You can find the max leakgage current of the ERR pin is 3uA in the datasheet.

Power management forum