Hi Everyone ,
I have observed and used UCC27211DDA high-low side gate driver for my 4 switch buck boost application. I will ask a basic and simple question for you. For my application minimum bottom switch turn on time very important for bootstrap capacitor charging time(minimum charging time) . Using minimum turn on time information , I will determine the duty cycle limitations .(like buck max duty does not exceed the 0.9, and boost min duty does not lower than 0.07 etc.)
But in datasheet , there is no any information about the this time. How can i get this information ? Can you explain briefly please ?
Another basic question that, Dead band time is typically 2nsec, isn't it ? This time was a little ? I expect greater than 100nsec .
I'm looking for your responses and helps .
Manythanks.
Burak