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TPSI3100: Simulation Model

Part Number: TPSI3100

Tool/software:

Hello,

Is there a simulation model for this part? I have PSPICE for TI but this part isn't in there. 

Also, when is the formal release of this part? Currently its Preview.

Thanks,

Ashik

  • Hello Ashik,

    Thanks for joining E2E and reaching out to our team! TPSI3100-Q1 RTM (release-to-market) is scheduled for end of November (11/30). There is no simulation model available at this time, but one should be available by RTM. For our understanding, could you please share your application details?

    Best regards,
    Tilden Chen


    Solid State Relays | Applications Engineer

  • Great thanks for the info. 

    Also, I would like to know what kind of current can be drawn out of the drive pin? For example, if EN is always HIGH how much constant current can I draw out of the drive pin? The datasheet specifies 1.5/2.5-A peak source and sink current. Can I get a continuous current source spec?

    Thanks,

    Ashik

  • Hello Ashik,

    Thanks for your reply. TPSI31xx power transfer varies across temperature but assuming 85°C ambient temperature, it can provide at least 42 mW. The output current will also vary depending on what output voltage is acceptable here. 

    Assuming nominal output voltage, VDRV = 17 V
    IDRV_MAX = 42 mW / 17 V = 2.47 mA

    Assuming minimum output voltage, VDRV = 13.5 V (under voltage rising spec, VDDH_UV_R)
    IDRV_MAX = 42 mW / 13.5 V = 3.11 mA

    Best regards,
    Tilden Chen


    Solid State Relays | Applications Engineer

  • Hi Tilden,

    Thank for your previous answer. I have two more questions:

    1. I can't seem to find the 42mW you mentioned in your previous answer in the datasheet. Is that spec'ed anywhere? 

    2. What is the steady state current you can draw from VDDH?

    The only power supply rating I can find is on the VDDM which the datasheet says: "Up to 25-mW, 5-V supply for external auxiliary circuitry"

    Thanks,

    Ashik

  • Hello Ashik,

    Thanks for your reply.

    1. 42 mW is not spec'd in the datasheet, but I am working on releasing a calculator tool that will show the power transfer vs. temperature relationship. This number is from our internal characterization data.
    2. VDDH steady state current is same as the VDRV output current in my previous response. They are both powered the same way, EN connects VDDH to VDRV.

    Please let me know if you have any other questions.

    Best regards,
    Tilden Chen


    Solid State Relays | Applications Engineer

  • Tilden,

    Thanks for the info. Looking forward to the simulation model to be available. 

    Thanks,

    Ashik