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TPS563219A: TPS563219A PG waveform question

Alec Chen
Intellectual 730 points
Part Number: TPS563219A

,Dear Sir,

Our cusotmer is currently using TPS563219A(and they have used TPS563219 before)and they found out the PG waveform in TPS5632191A spec is a little weird. Please see the Power up waveform below form both spec. Normally the PG pin should work like the waveform in TPS563219 spec.In TPS563219A spec, the PG singal  will start to ramp up with power up. We think that it is kind wired to us. Could you kindly help us check about this ? Thanks in advance

 

 

          


  • 0
    TI__Expert 4875 points

    Hi Alec,

    I could not see your attached waveform but I think I understand your question. Other customer also arise the same question before and the conclusion is that the waveform in TPS563219A is not right. You could just refer to the TPS563219 PG waveform. The PG function should be enabled after 1.7 times soft start time. Thanks!

    Best,

    Anthony