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  1. #1
    New Member New Member Mart is on a distinguished road
    Join Date
    Oct 2019

    Discontinued IRDAKO705169


    I'm trying to repair a motor driver for an ASKO W6863.
    I've replaced the blown LNK304GN which supplies +15.4V to (what I assume is) the low side control supply of the IRDAKO705169,
    but the LNK304GN is going into over current protection state when the IRDAKO705169 is connected.

    I'm wondering what the expected current draw is for the IRDAKO705169.

    Thank you in advance.

  2. #2
    New Member New Member
    Infineon Employee
    Infineon Employee
    daanish is on a distinguished road
    Join Date
    Nov 2019
    Max quiescent IQCC (VCC supply current) is 3.35 mA. IQCC increases during PWM operation by about 20%. It is best to design the power supply to provide at least 5x the operating IQCC. In this case therefore, the max expected draw current would be 3.35 mA x 1.2 x 5 ~= 20 mA.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.


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