FMD2740A problem


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Thread: FMD2740A problem

  1. #1
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    Default FMD2740A problem

    Just to document this.
    The FMD2740A is rated for a power supply of 12-50V.
    I just had a Chinese one blow up and it seems that inside a 5V step down regulator was used that is only rated for 6-45V.
    There is an extended range version for 6-60V so it is possible that other units with the proper chip exist.
    If anyone uses these with a 48V supply, check that the Linear Technology chip in the upper right corner ends in LM2576HVS-5.0 instead of LM2576S-5. 0

    Similar Threads:
    Last edited by MarcusWolschon; 09-26-2013 at 03:54 AM.


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    Default

    I found this thread from searching "FMD2740A". Would you consider this lot 3pcs Stepper Motor Driver | eBay part of the Chinese knock-offs?
    How do you find the performance of them?
    What are you using for a controller / break out board?
    ~ What is your thoughts on the board included in that link?

    Thanks! Tyler



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    Default

    There's no way to know.

    Gesendet von meinem INO_ONE_PLUS mit Tapatalk



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    Nice...my replacement FMD2740A failed because of a bad solder connection on Capacitor 1.
    It's moving freely.



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FMD2740A problem
FMD2740A problem