Problem with LTC4236 12V 25A design

Hi N.ATAHAN,

Are you using the demo board? If not, it is always a good idea to get the demo board so you have working reference board. You can also double check and verify your design first using LTspice. 

 What is the reason why the IRL40SC228 / IRL40SC209 codes mosfet does not turn on? What should I pay attention to when choosing a mosfet? I need to choose a mosfet in the redundant power design of the system that draws 25A continuously. Which mosfet model should I use for the LTC4236?

 What is the reason why the IRL40SC228 / IRL40SC209 codes mosfet does not turn on? What should I pay attention to when choosing a mosfet? I need to choose a mosfet in the redundant power design of the system that draws 25A continuously. Which mosfet model should I use for the LTC4236?