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UCC5350: UCC5350M drive signal

Part Number: UCC5350

Dear Expert ,

Good day!

Our customer use UCC5350MC as the gate driver , here is schematic:


Now , the Mosfet without load , Pin1 do not have power , the customer test the signal wave between pin 3 and pin 4 

1 . R16  change to 2Ω , other component do not change .

2. R16=2Ω .R19=5Ω , short the D19. other components without change

In the case of MOSFET without load, the customer  feel that this driving waveform is not good, so they hope TI technical team can give some suggestions to optimize the waveform, thank you!



  • Hi, Leon,

    I can’t read the schematic; it is fuzzy.

    Are you saying the customer isn’t applying power to pin 1, VCC1? This is obviously not a valid mode of operation, so I can’t really comment on the output waveform. If they power VCC1, the output should be normal.

    Best regards,