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TPS53513: Tina-TI - What is PG signal and how to analyse load transient?

user5964221
Prodigy 60 points
Part Number: TPS53513
Other Parts Discussed in Thread: TINA-TI

I want to simulate load transient response of TPS53513 in TINA-TI, so I have downloaded TPS53513 TINA-TI Transient Reference Design.

But I failed to figure out how to setup the load transient simulation and what makes me confusing is the note attached below this example "5.All transients can be applied after the output voltage reaches steady-state and the PG signal has been asserted." It looks quite simple, but how to set these up in TINA-TI in detail?

  • 0
    TI__Mastermind 23955 points

    User,

    Use the TPS53513 trans steady state model.  

     Add a current generator in the sources tool bar.

     Double click the current generator symbol in schematic.   Dialog box will pop up.

     Click the signal row.   Click the three dots to right of general waveform

     Setup the delay, amplitude, slew rate and pulse width of your load step.

     The power good will transition at about 1ms.      

     Add a voltage pin under meters to PGOOD if you want to see the PGOOD transition in waveform window.

    Under analysis   click transient, setup simulation time click ok