stepper motor driver

Discussion in 'General Electronics Chat' started by thinkbig, Nov 30, 2008.

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  1. thinkbig

    Thread Starter New Member

    Nov 25, 2008
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    hello,
    i am making a micromouse and is using a typical 9v bipolar stepper motor.
    Can anyone tell me which motor driver is best for my stepper motor.
    I am confused between L298 and ULN2003......
    pls help..................
     
  2. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    145
    Please do not hijack another users thread. You appear to be asking this question elsewhere, please keep all questions of a similar nature in one place so things do not get confusing. Thanks.

    Dave
     
  3. Sherko

    New Member

    Feb 18, 2015
    9
    0
    Hi.
    Your stepper motor is Bipolar so you must change phase(polarity) of your wires continuous and ULN2003 is just an open collector with 7 channel when get High pulse in his input pins produce Negative(gnd) polarity so you cant use this to drive bipolar stepper ranged with high ampere,but l298 is two H-bridge ic that can control two dc motor in two position it means that you can change it's output polarity(+ or -) so it's the best choice for you also it gives 4 amp output current whereas ULN2003 gives 0.5 amp.
    but if you use Unipolar stepper motor u can also use ULN2003 ,while it is cheaper than L298, isn't it?
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,452
    3,371
    The TS is long gone.
    Please do not post to old threads.
     
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