Hi expert,
My customer would like to know the PWM frequency limitation in PS/SYNC pin that won't let IC misjudge to enter snychronous state.
My customer's application condition is in below
==>In Battery mode, they will let TPS63020 operate in power saving mode
==>In Adaptor mode, they will let TPS63020 operate in PWM mode
But they will do adaptor plug in and plug out test repeatedly, so the PS/SYNC pin signal will sometimes High and sometimes Low. We can’t predict their plug in/out frequently.
That’s why customer would like to know our limitation at PS/SYNC pin. They don’t want this signal to cause device enter SYNC condition because of this waveform. I also draw simple diagram to express PS/SYNC pin waveforms for your reference.
Please advice ASAP.
Thanks