Hello,
I'm trying to prevent an over current fault condition from switching off the MOSFET using a LM25066IA. I understand the risk of doing this in my design, but I have other protection in my design to prevent any damage.
I'm able to use the PMBus to set specific registers to prevent this fault: Register D7h =04
I can then apply a load that would trip the over current fault, and my design will restart (turn off). Measuring the Timer and Gate pins; it goes through the restart sequence and there is still a very small glitch on the gate. I don't believe the glitch would cause the MOSFET to switch OFF. Additionally, I'm using the PGOOD pin to perform power sequencing down stream and this pin is being pulled down when the over current condition is experienced.
Do I have all the PMBus registers changed to prevent a over current fault condition from switching the MOSFET off?
Should the PGOOD get pulled down in this condition?
Can the over current fault be preventing using the LM25066IA? The datasheet for LM25066 does not state the ability to do this but the LM25066IA does.
Thank you!