Other Parts Discussed in Thread: UCC21710
Hello experts,
I am using this 4 input AND logic for combining fault signal from my gate drives (UCC21710 - four numbers). The fault pin is open drain so we provided 4.7k pull up to vcc and a 100pF across FLT & GND pin. when this FLT pin coming at the AND IC side,
if we passing it to one RC filter make any sense (say 220 Ohm & 100p) ?
does the time constant of RC will be affected with the full up value ?
if so new rise time is (4.7k + 220) * 100p ?
in another case where 3 FLT Inputs are there, then whats the better option for the 4th input pin, leav it floating or connecting to 5V
Regards
Anoop kumar
