Hi,
The waveforms of the high-side gate and the high-side source are different for the two DRV8703-Qs.
I would like to know the reason for this.
The waveforms below are the measured dead time of the H-bridge circuit with two DRV8703-Qs, respectively.
The high-side gate is yellow and that of the high-side source is green.
In each waveform, it was confirmed that the MOSFET is turned off because the Vgs of the high-side N-channel MOSFET is 0V.
However, one is falling smoothly, while the other is falling steeply.
I would like to know why the falling waveforms are different on the two DRV8703-Qs.
The H-bridge circuit is shown in the figure below.
The measurement points of the waveform are the gate and source of Q4.
The TDEAD and IDRIVE settings for the two DRV8703-Qs are the same.
The red boxes in the figure below are the setting values.
Regards,
