UCC27517A-Q1: Parasitic capacitor value for ucc27517 IN+/- pin

Hi Charles,

Thanks for the interest in the UCC27517A-Q1, while we work on this request, can you tell us more about the application and why this parameter is needed? Is the customer looking to optimize an input filter on the IN+/- pins? If the customer wants to implement a filter on IN+/- we typically we recommend 0-100 ohms for the series resistor and 10 - 1000 pf for the cap, making sure to understand the tradeoff between propagation delay and noise immunity.

Regards,
Will Toth

Hi Will,

Thanks for the reply

They want to calculate the delay from MCU signal out to the time when UCC27517 recognize that this is an effective signal. Thanks.

Regards

Charles Zhang