Other Parts Discussed in Thread: LM5143-Q1, LM5145
here is two confusing items of LM5143q design:
1.there is a descripton as following in the datasheet what seems not to make sense, actually it suppose that there is no body diode reverse loss of high side mos, right?
Page 37: Typically two-thirds of the net loss attributed to body diode reverse recovery
if above description is right or not?
2. there is a section that is called external schottky diode in the design calculator excel
if this schottky diode is placed parallel with low side mos for better reverse performance to achieve higher efficiency?
If so, how to choose this diode, if the current range need to be high as the low side mos as the diode will run in freewheeling stage for a while when low side mos off?