Other Parts Discussed in Thread: UCC21550,
Tool/software:
Chip bootstrap power supply, UVLO=8V.
Input 50kHz complementary PWM, and the chip output is shown in the figure below.
Green represents the upper MOS transistor, blue represents the lower MOS transistor, and yellow represents the bootstrap capacitor voltage.
Is it normal for the waveform emitted by the lower MOS to lag behind the upper MOS by 60us? If there are abnormalities, which directions?