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ISOW7741: EMC inquiry

Cedrick
Expert 8270 points

Part Number: ISOW7741
Other Parts Discussed in Thread: ISOW7841, ,

Hi,

Good day.

Our customer would like to know if there would be improvement with the newer ISOW7741 compared to the ISOW7841.

Looking forward to your input. Thank you.

Regards,

Cedrick

  • 0
    TI__Guru 55955 points

    Hi Cedrick,

    Yes, ISOW7741 has significant improvements over ISOW7841 especially on radiated emissions. Please see below a summary of improvements of ISOW7741 over ISOW7841.

    Parameter

    ISOW78xx

    ISOW77xx

    Package

    16-DW

    20-DFM

    Load current(mA) 5in5out

    130

    110

     Typ Efficiency (5in5out)

    53

    45

    Separate Logic and Power converter supply

    No

    Yes

    Ferrite bead option

    No

    Yes

    Viso accuracy (5Viso) at 10mA load

    4.7V to 5.43V

    4.75V to 5.25V

    Ripple (mV pk-pk) with 10uF output cap

    80mV

    24mV

    I/O voltage support min

    3.3V

    1.71V

    Power converter enable/disable

    No

    Yes

    I am also copying below ISOW7741DFMEVM emissions test results. Thanks.

    Regards,
    Koteshwar Rao