Recently I've been trying to fix a motor-controling board in my pool cleaner. After some measuring, I've figured out, that two MOSFETs are behaving strangely and their behaviour varies from the other two paires.
Unfortunately I am unable to find the types and specs of the FETs. This is what is written on them:
- D409 BA6X17
- VNH38 ON 58 65NLG
Isn't someone familiar with these?