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UCC27323: Alternative to Onsemi NCP1392

Josef Alt
Intellectual 1755 points
Part Number: UCC27323
Other Parts Discussed in Thread: LMC555, LM555, TPS28225

Hi,

my customer is looking for an alternative to Onsemi NCP1392. 

It is used as self-oscilating H bridge driver to generate an AC voltage. Vcc is 15V, hence 30V should be ok if you consider tolerances. 

It is a new design, p2p is not needed.

Thanks

Josef 

  • 0
    TI__Expert 4070 points

    Josef,

    Thanks for reaching out!

    -------

    We do not currently have any gate drivers that incorporate a self-oscillating H bridge.

    For a oscillation source, something such as the 555 timer could be used to generate the needed signals.  (LM555 or LMC555)

    -------

    I hope this helps answer you question!  If so, please press the green button or feel free to follow up!

    Thanks,

    Aaron Grgurich

  • 0
    TI__Intellectual 1755 points

    Aaron,

    could TPS28225 + LM555 replace NCP1392?

    Note: 30V is sufficient for the application.

    BR Josef 

  • 0 in reply to Josef Alt
    TI__Expert 4070 points

    Josef,

    Yes, and the TPS28225 has significantly more sink and source current (to the MOSFET gates) than the NCP1392 does.

    Is 30V the bus voltage or the voltage for the ICs?  Regardless, the 30V will be too high for the TPS28225.

    I am a bit confused as to what you mean by "30V is sufficient for the application".

    -------

    I believe we are looking for an oscillator (LM555 or LMC555, which is the CMOS version) and a half bridge driver.

    -------

    Here are our half-bridge drivers that are rated for a bus voltage of 40V and above to give some margin.  And then they are sorted by lowest to highest price.  This should help us and customer figure out what is best for them

    https://www.ti.com/power-management/gate-drivers/half-bridge-drivers/products.html#p3162max=40;110&p480=2;2&sort=p1130;asc

    ------

    Please let me know if this answered your question by pressing the green button, otherwise feel free to follow up!

    Thanks!

    Aaron Grgurich