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ISOW7842: Timing and skew

Danilo A.
Mastermind 24795 points
Part Number: ISOW7842

Hi Team,

Our customer would like to request the following specifications as they are working on a very fast gate drive circuit and need to know how the ISOW7842F varies as a function of other inputs.

  • Data For Channel-Channel skew(Supply Voltage, Lot to Lot, Temperature)
  • Data For Propagation Delay(Supply Voltage, Lot to Lot, Temperature)

The operating base frequency is centered around 13 MHz. The signal can sometimes be pulsed, with ns rise/fall times.

Regards,

Danilo

  • 0
    TI__Mastermind 49675 points

    Hi Danilo,

    Thanks for reaching out.

    The channel-channel output skew and propagation delay values specified in the datasheet already cover all the variation from supply voltage, lot to lot and temperature. Customer can use these values as the worst-case max values. I am copying below a screenshot from datasheet for quick reference. Let me know if you have any questions, thanks.


    Regards,
    Koteshwar Rao

  • 0 in reply to Koteshwar Rao
    TI__Mastermind 24795 points

    Hi Koteshwar,

    Here is the feedback of our customer.

    Thank you for the response. I did have a look at the datasheet. I'm looking to go deeper for things which are not on the datasheet.

    Is there data for channel-channel skew as a function of supply voltage and temperature?

    What about for propagation delay as a function of supply voltage and temperature?

    We are willing to use an NDA if TI is not able to share this type of data without that type of protection.

    Regards,

    Danilo

  • 0 in reply to Danilo A.
    TI__Mastermind 49675 points

    Hi Danilo,

    Thanks for sharing customer inputs.

    Danilo A. said:
    Is there data for channel-channel skew as a function of supply voltage and temperature?

    I am assuming you are looking for a curve showing relationship between channel-channel skew vs supply for various temperatures. We do not such curves to share with you. We have channel-channel skew data for various input/output supply voltages (5V and 3.3V) at worst-case temperature and that is already provided in the datasheet.

    Danilo A. said:
    What about for propagation delay as a function of supply voltage and temperature?

    This is also provided in the datasheet for various input/output supply voltages and as typical and maximum values. The typical values usually correspond to as expected values at room temp (25C) while the max values correspond to worst-case temp (125C).

    Let me know if there is anything else I can help you with, thanks.


    Regards,
    Koteshwar Rao