L6398 Problem
Hello my Friends.
Please help me.
I got a problem with L6398 for bldc driver.
the above picture is 1 phase for bldc driver using L6398 and FR3607. After I got PCB and soldered it. But when I tested it, I got the problem as:
Here is the truth table of L6398
when I set LIN = H, HIN = H then LVG = L, and HVG = H. it is ok.
when I set LIN = L, HIN = L then LVG = H, and HVG = L. it is fine.
But when I set LIN = H, HIN = L (or LIN = L, HIN = H) then LVG = L, and HVG = H.
I tried to solve it, until now I can not, and I don't know the reason for my problem.
Please help to fix this problem.
Thank you so much.
Keep safe.
