Hi E2E:
We are designing the power supply with the TPS40210-Q1.
And we found that there is a break in the PWM signal output by the IC at startup.
SCH and test waveforms are as follows:
We want to know what might cause such a startup interruption?
Thanks!
Hi Tommy,
I believe this waveform is normal.
Please find Figure 7-3 below.
Compared to Figure 7-3, the difference is that there are PWM signals at t0.
I believe this is due to VSSE is a bit above 0V at t0, so there will be some PWM signals.
Best Regards,
Feng Ji
