DRV8806: Driver selection for 28BYJ-48 stepper motor

Hi Basit,

Basit Ali Khan said:

Need to find a driver for 28BYJ-48 stepper motor, which driver will be most suitable. I need the driver with stall detection feature but most driver ICs that I am finding uses bipolar motors but 28BYJ-48 is a unipolar motor. I dont want convert the motor from unipolar to bipolar as this involves cutting tracks of the PCB from inside the motor assembly.

A bipolar driver is capable of driving a unipolar motor. An example of a driver that fits the specs and incorporates stall detection is the DRV8411A. 

DRV8411A: https://www.ti.com/product/DRV8411A 

A complete list of our stepper motor drivers can be found from the link below:

https://www.ti.com/motor-drivers/stepper-driver/overview.html 

(use the filter feature to search with desired specs)

It is also possible to drive a unipolar stepper motor as a bipolar stepper motor using a specific wiring configuration. Please see the application note below on how to configure:

How to drive unipolar stepper motors as bipolar stepper motors:

https://e2e.ti.com/blogs_/b/analogwire/posts/drive-unipolar-stepper-motors-as-bipolar-stepper-motors-with-simple-wiring-reconfiguration 

TI also has an application note that may be of interest on how to specifically drive a unipolar stepper motor using the DRV8xxx family. Please see the attached link for more details: 

https://www.ti.com/lit/an/sloa312/sloa312.pdf 

Best,

David