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Original question:

TINA/Spice/TL3472: TINA TL3472

TL3472: VOL and VOH for the TL3472

NINET Christophe
Prodigy 45 points
Part Number: TL3472

Dear All,

I'm using the TL3472 to drive the excitation signal for a resolver. I would like to know if there are VOL and VOH vs IOUT values available for the TL3472 ?

Application conditions :

- power supply : +12V / 0V

- peak current : +/- 13 mA (sink and source)

The simulation with TINA TI shows about 1 V for VOL.

Can you give your feedback about this application ?

Thank you for your help.

Regards,

Christophe NINET

  • 0
    Guru 140200 points

    Hi Ninet,

    I think the TL3472 in no good choice for your application because its guaranteed short circuit current is only -10mA and +20mA. See the bottom of page 4 of datasheet.

    You should take an OPAmp with a stronger output stage.

    May I ask, why did you take the TL3472?

    Kai

  • 0 in reply to kai klaas69
    Prodigy 45 points

    Hi Kai,

    Thank you for your feedback. This amplifier has been used in my company in a similar way but with less output current (the resolver input impedance was higher) and I hadn't noticed this output current limitations.

    I'm considering using the ALM2402 instead (output current capability around 400 mA). I think this one is a better candidate ...

    Have a nice day.

    Christophe



  • Former Member
    0 Former Member in reply to NINET Christophe

    Hello Cristophe, 

    Feel free to start a new thread if you need any help finding a new part.

    Regards,

    Daniel