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Newer Motor Drivers to connect to the LM629

mike fontes
Expert 1385 points
Other Parts Discussed in Thread: LM629, DRV8412

Hi,

I have used the LM628 and LM629 on a number of motor control applications in the past.   I am thinking about using them again and want to know if TI has any recommendations on what newer drivers can be used to connect the LM629 to the motor.  The applications notes are over 20 years old and the parts recommended at that time were National Parts that I am not sure are even available any more. 

I would think there must be a number of better drivers available.  Does the Motor Applications group have any suggestions?

Sincerely,

Mike Fontes

  • 0
    TI__Guru** 114905 points

    Hi Mike,

    Our suggestion for a new driver depends on the motor type, voltage, current, and drive method desired.

    Please check the list of motor drivers available at: http://www.ti.com/lsds/ti/apps/motor/product.page

    FYI, the LM628 and LM629 are still available.

  • 0 in reply to Rick Duncan
    Expert 1385 points

    We use several small motors here in our products.  Most are from Faulhaber. They are series 2342, 2642, 3042 and 3863 and use several different gearheads per custom assembly.  I would like to use the same drive for all, but understand if I have to go to the LM628 with a different drive for the larger motor.

    Are there any new app notes or updates that show some of your newest suggested circuits?

    Sincerely,

    Mike Fontes

  • 0 in reply to mike fontes
    TI__Guru** 114905 points

    Hi Mike,

    Sorry for the delay.

    There are many app notes to look through. You can go to http://www.ti.com/lsds/ti/apps/motor/tech_docs.page to see a list of technical documents.

    The devices that you listed appear to be brushed motors with various voltage and current ratings. Because the outputs can be PWM'ed, the a brushed driver that can handle the highest voltage and current rating should work as a single platform. Please take a look the DRV8412 as an example.

    The DRV8412 has many features to protect itself, such as undervoltage, overtemperature, overload, and short circuit protection.