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h-bridge IC's? — Parallax Forums

h-bridge IC's?

WhelzornWhelzorn Posts: 256
edited 2006-02-24 02:02 in Robotics
I need an H-bridge (or other motor driver) IC that can handle 380mA constant, and 3.8A surge at 12v (though it would be best for it to handle slightly higher, as those are the exact motor specs). I need to drive 2 motors, so a dual H-bridge would be nice, but If I must, I could use 2 singles.
Thanks,
Justin W.

Comments

  • Bruce BatesBruce Bates Posts: 3,045
    edited 2006-02-23 06:37
    Justin -

    You have a couple of choices:

    National Semi - LMD18200 3A 55V, 6A surge:
    http://www.national.com/pf/LM/LMD18200.html

    Allegro Micro - A3958ASB, 3A 50V:
    http://www.allegromicro.com/sf/3959/

    Freescale MC33887 - 5.2A 40V:
    http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MC33887

    I'm sure there are others as well.

    Regards,

    Bruce Bates

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  • XNORXNOR Posts: 74
    edited 2006-02-23 18:57
    You can order the Texas Instruments SN754410NE from here (Pololu):

    www.pololu.com/products/misc/0024
  • WhelzornWhelzorn Posts: 256
    edited 2006-02-24 02:02
    I like the looks of the Freescale MC33887, as it is available in an HSOP package. The only other questions I have now are: what is the advantage of using the HSOP over the SSOP packages? I have soldered both and know the difference in pin spacing, but are there any power/heat differences? also, I doubt this, but is there a dual version of that chip (obviously different chip) capable of driving 2 motors, with the same current/voltage outputs? I also like the LMD18200 alot, but it's kind of expansive @ $11/chip.

    Post Edited (Whelzorn) : 2/24/2006 3:13:28 AM GMT
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