Part Number:LM5170EVM-BIDIR
Hi TI engineer
I have a question about LM5170 evm board.
I replaced TVS diode SM5S36AHE3/2D to TPSMB20A(3 pcs) ,then I shutdown the circuit at output current 60A.
There is someing different on the waveform.We can see negative polarity voltage on the Vo1 waveform and positive polarity voltage on the Vo2 waveform.
I don't understand why the Vo1 waveform will drop to negative voltage.I think that someing wrong has be happened.
Please suggest how to solve or choose correct TVS diode.
Ch2:BRKG to BRKS
Ch3:Vo1
Ch4:Vo2