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TPS63020 PS/SYNC pin PWM pulse frequency limitation

Other Parts Discussed in Thread: TPS63020

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