Hello Ethan,
Please refer to the EVM User's Guide https://www.ti.com/lit/ug/slou558b/slou558b.pdf pages-40 to 42. You can remove the jumper shorts for J4 and J8 and for the VREF. Then you can access the DRV8461 pins via the header and connect it to…
Hi, Janusz,
I do not have a stepper with similar L and R as your motor. But I tried with a motor that was close to it 0.8 ohm and 1.3 mH with a DRV8889-Q1EVM. See below scope captures - green is coil current, yellow is AOUT1 voltage and pink is VM, 1/8th…
Hi Jason,
This is not device specific. This is because of insufficient VM voltage to overcome the back EMF generated by the stepper at those speeds resulting in phase currents not reaching target value for proper current regulation and wave shaping. This…
Other Parts Discussed in Thread: DRV8452 , DRV8434S , DRV8434 , DRV8462 , DRV8461 I want to use a CNC machine to wirelessly control a stepper motor, but the problem I encountered is that the CNC machine cannot be connected to Modbus. Do you have any solution…
Part Number: DRV8410 Other Parts Discussed in Thread: DRV8411 , DRV8889-Q1 , DRV8434S , DRV8461 , DRV8462 Hello there,
We planned to use TI’s Stepper motor driver because we are having a few quires.
We are using “SMS6-F40” and "SMSH8-F40”…
Hi Junho,
To reduce the current in hold position to manage the thermal dissipation in the drive coils VREFO should be reduced to a corresponding lower value. Customers do this using a resistor controlled by an MCU GPIO or using a DAC or PWM DAC output…
Hey Tony,
I recommend the DRV8452 or DRV8461 . These have a similar package to the TMC2226 and better performance specs. A smaller more budget-friendly option is the DRV8425 .
Here are all our stepper drivers filtered for >29V and >=2A full-scale RMS current…
Other Parts Discussed in Thread: DRV8461 , DRV8462 , DRV8434A , DRV8434 , DRV8825 , DRV8434S , DRV8424 Hi,
I am using DRV8825PWP IC for driving the Nema-17 stepper Motor. The inputs provided are as follows,
Driver IC supply voltage -15V
Step input frequency…
Hi Basit,
The following devices are the only stepper motor drivers that offer stall detection:
DRV8461
DRV8452
DRV8462
DRV8434A
DRV8434S
DRV8889-Q1 (automotive)
DRV8711 (gate driver)
Please see the following application notes on how to drive a unipolar…
Part Number: DRV8849 Other Parts Discussed in Thread: DRV8461 , DRV8452 , DRV8434S , DRV8434A , DRV8462 I have gone through the DRV8849 datasheet and I have doubts regarding the initial position mentioned in that.
As per the datasheet :
"The initial excitation…
