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UC2637: Looking at Design Files and Wondering...

Part Number: UC2637
Other Parts Discussed in Thread: TIDA-00320,

Hello,

I currently have a UC2637N and I was looking at the datasheet. I found this photo/diagram:

...

Now...I was thinking that this driver could be used as is/without another motor driver. Is this a fact or was I confused?

And where it states in the photo/diagram "Speed Control," am I supposed to supply a knob of some kind or is that just referencing what it actually is doing?

Seth

P.S. I am trying to use this driver, the UC2637N while testing, w/ a BeagleBone Black or other familiar board from beagleboard.org. 

  • Seth,

    The UC2637N is just a controller.  It requires a separate motor driver as shown in the block diagram. 

    Is there a reason you don't just want to handle the speed control in your MCU and then all you need is MCU+Amplifier. 

    Please see this reference design.

    https://www.ti.com/lit/ug/tidues7/tidues7.pdf

    Regards,

    Ryan 

  • Hello,

    Although this is resolved, does the controller act as a safer, more advanced way of handling the motor driver? For instance, instead of a MOSFET as a switch would be another way to handle it. 

    Seth

    P.S. I am new. I am sure you heard everything already. I saw the TIDA-00320 and I am thinking how to incorporate that into something useful. There is nothing really that I do in reality that calls for me to attend such studies. I have chosen to take on this task solely as a learner. It is a vast subject with tons of ins and outs, twists and turns, and etc. 

  • Seth,

    It would really help if we just took a step back and you told me what you are trying to do.  How many motors you want to drive?  Type of motor?  At what current?  Then I could direct you better.  

    Regards,

    Ryan

  • Hello Sir,

    Okay...I am trying to build a Cape of sorts for a beaglebone black but have less experience than most w/ SiPs and SoCs. So, I purchased this controller to build upon w/ it.

    Also, I am breadboarding right now. Nothing is finalized. Just a 48v or less or 12v or more battery needs to be attached for powering the 12v or however many volt motors I use. I also will be trying to build it w/ the UC2637 to start. I guess I can use a L298 to start but I would like to build something w/ another motor driver(s). 

    Seth

    P.S. Okay. I just realized your questions: 

    1. Four geared DC Motors - 12v

    or...

    2. Four Stepper Motors - 12v or 24v

    or...

    3. Three or four BLDC motors (I would perform more research on this subject but I understand these motors are a bit more complicated)

    I do not need the amounts to be all in one package. Just to give some background experience, I am familiar w/ resistors, capacitors, and/or diodes. I am not completely sure what goes where as of now but I can learn. So, nothing specific. I am building to build only (learning experience). Sir, also me having a complete interest in the TIDA-00320 is real. If it is to not be made, I understand. It is a bit outdated and older.

    Oh! Also sir, I was thinking of getting to know about the MSPxxxxxx line of MCUs to port this along w/ the Cape but this will be an excursion in time (not now). 

  • Hi, Seth,

    Ryan will get back with you tomorrow. Sorry for the delay.

    Best regards,

    Don

  • Hi, Seth,

    Ryan catch a cold today. To prevent further delay, please let me try to understand the issue. First, choose the motor type: Brushed DC motor; stepper motor or BLDC motor for your application.  And then, visit Motor Drivers | Overview | TI.com to select a correct driver. 

    BTW, select a new driver could save your design time and get a better performance.

    Regards,

    Wang Li

  • Hello,

    Thank you for the update.

    Seth

  • Hello Wang,

    Seth here. I am building something. I will go to the site recommended and find something.

    Seth