UCC28722: UCC28722

Rishabh Rishabh

Part Number: UCC28722

Regarding 28722 the capacitor on VDD pin is mentioned is slau721a is 4.7 mfd, if I reduce to 2.2 mfd which parameter I should check so that functionality of UCC28722

should not get affected.

over 4 years ago

0 Benjamin Lough over 4 years ago

TI__Mastermind 26225 points

Hi Rishabh,

I would suggest using equation 11 in section 3.3 in SLUA721A to calculate the minimum needed VDD capacitance. Too small of a capacitance could result in VDD falling to the VDD UVLO threshold during startup.

Best Regards,

Ben Lough

Power management

Power management forum

UCC28722: UCC28722