UCC21755-Q1: AIN PIN

Shishir Trivedi

Part Number: UCC21755-Q1

Hi,

For power converter design using UCC21755-Q1 driver IC, if I do not utilize the AIN pin. Then is it advisable to keep the pin not connected to anything?

over 1 year ago

+1 Pratik Adibatla over 1 year ago

TI__Expert 7473 points

Hi Shishir,

When AIN pin is not used, it's required to tie it to COM pin.

Best,

Pratik

0 Shishir Trivedi over 1 year ago in reply to Pratik Adibatla

Prodigy 80 points

Same with the APWM pin? tie it to the primary ground?

0 Pratik Adibatla over 1 year ago in reply to Shishir Trivedi

TI__Expert 7473 points

Hi Shishir,

No. Never tie APWM if not used. We highly recommend to leave it floating.

Best,

Pratik

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UCC21755-Q1: AIN PIN