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TPSI3050: CIRCUIT COFIRMATION

Gokulkumar K
Prodigy 30 points
Part Number: TPSI3050
Other Parts Discussed in Thread: TPSI3100

Tool/software:

Hi, I have doubts using this diode please verify and answer for my schematic .

  • 0
    TI__Expert 7576 points

    Hello Gokulkumar,

    Thanks for joining E2E and reaching out to our team!

    I'd recommend checking in our calculator tool and also simulating using the PSpice model to verify it can meet your application requirements.

    At a glance, I think you will need to disconnect EN from VSSP as this will keep EN low always. And disconnect U31 MOSFET drain from VSSS as this will short across the MOSFET.

    Best regards, 
    Tilden Chen

    Solid State Relays | Applications Engineer

  • 0
    Prodigy 30 points

    Hi ,

    I modified my previous circuit and added an auxillary circuit from the VDDM pin ,Is that my circuit able to generate a 5v feedback signal from the VDDM pin and also verify my circuit all the components connected properly.Please reply what are the changes should be included in the above circuit ?

                                                                                                                              Thank You

  • 0 in reply to Gokulkumar K
    TI__Expert 7576 points

    Hi Gokulkumar,

    Thanks for your reply.

    I'd recommend taking a look at TPSI3100, this device has same features as TPSI3050 but also power good (PGOOD) feature to send back-channel communication from secondary-to-primary and notify VDDM is high.

    Best regards, 
    Tilden Chen

    Solid State Relays | Applications Engineer