Part Number: DRV8849 Tool/software: Hi , We tested the waveform at a lower Vref value i.e. of 50 (0.65V) , and we observed that it is still not purely sinusoidal. Interestingly, a pure sine wave is observed only at a Vref value of 0. Kindly review and…
Part Number: DRV8849 Tool/software: Hi, i am using the stm32 controller to generate PWM pulse for rotating the motor with 0.9 degree per step with microstepping of 1/128. i am checking the pulse frequency as per calculation as 102400 Hz to rotate the…
Part Number: DRV8849 Tool/software: Hi team. I am investigating whether there are any products capable of driving a 3-phase stepper motor using current control. According to the following ADI site, it appears that the TMC5062 can be used to control a…
Part Number: DRV8849 Tool/software: Our application uses the DRV8849 driver to control motor rotation. However, we're encountering a motor noise issue during operation with a load of 0.4 Nm. Could you please suggest optimal driver settings to reduce the…
Part Number: DRV8849 Tool/software: In the DRV8849 datasheet, it describes each of the four PGND pins as "Power ground pin for H-Bridge <1-4>. Connect all ground pins together near the IC." However, I don't know if this recommendation is indicating that…
Part Number: DRV8849 Tool/software: Hi,
We are now consider to use the DRV8849 and we have below technology issue:
1. Please help explain why this capacitor is needed between the VM and VCP:
2. Please help to explain why this diodes are needed…
Part Number: DRV8849 Tool/software: Hi all,
We are using DRV8849 in our design and would like to achieve braking functionality when the stepper motor connected at the output is not rotating. Please suggest how we can achieve the same.
Regards…
Part Number: DRV8849 Other Parts Discussed in Thread: DRV8462EVM Tool/software: Hi Team,
We are using the DRV8849 motor driver to control a stepper motor.
Configuration:
Microstepping: 1/128
Speed: 120 RPM
Step angle (θstep): 0.9…
Part Number: DRV8849 Hi Team,
The customer uses DRV8849 to drive a motor, and the OUT1A, OUT1B, OUT2A, and OUT2B outputs control a motor.
Raise the following pins:
ENABLE1, ENABLE2 ,
NSLEEP
STEP1 and STEP2
MODE01 and MODE11
VREF1 and VREF2…