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ISOW7841: Pre-bias condition

Atsushi Takahashi
Expert 1415 points

Part Number: ISOW7841
Other Parts Discussed in Thread: ISOW7741

Hi, Team

Does ISOW7841 have pre-bias condition?

I would like to confirm whether there are any restrictions of the order for Vcc and Viso on the starting and ending or not.

Best Regards,

  • 0
    TI__Guru 57515 points

    Hi Takahashi-san,

    Thank you for reaching out.
    ISOW7841 doesn't have any pre-bias requirements. Since the secondary side output VISO is generated from the primary side input VCC, you only need to power just the VCC and then VISO will get  generated by device. Hence, you do not need to follow any power sequencing order and only to power a single supply pin and that is VCC.

    I would also like to mention that ISOW7741 is our second-generation that we recommend you to use in place of the previous generation device, ISOW7841. Let me know if you have any further questions, thanks.


    Regards,
    Koteshwar Rao