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Hi Jeffrey,
If the customer is willing to change the driver IC I'd recommend a newer design driver such as the DRV8424 or the DRV8434. These new drivers use smart tune decay which supports higher microsteps smoothly and with low audible noise from the…
Part Number: DRV8818 Tool/software: After powering on the PCBA, the vref is adjusted to 1.6V and the output current is limited to 2A. After burning the firmware, the FW controls the motor to move continuously, but in reality, the stepper motor stops…
Part Number: DRV8818EVM Hi team,
My customer is using the DRV8818EVM to do evaluation. They have found one issue when using,
The output current they need is 1.7A. According to the formula, the reference voltage should be set to 1.3V. But in real test,…
Part Number: DRV8818 Hi E2E,
We use DRV8818 to drive a motor motion. 8 Subdivision, the pulse frequency is 18K, the current waveform distortion appears.
how to adjust and modify it?
In addition, When the motor at high speed, the peak current does not…
Part Number: DRV8818 Hi Team,
Customer pulls the ENABLE pin of DRV8818 low in their circuit design. After powered up, when testing the VM (24V) and ENABLE pin power sequencing, the ENABLE pin was found to be pulled high to 1.5 V for 2s and then pulled low…
Part Number: DRV8818 Hi, all
I try to control the step motor using drv8818.
Question 1.
- When I put pulse on the STEP input pin, do I have to give it at 5V?
- It is currently connected to ST company's MCU pin, and the corresponding MCU VCC is 3…
Part Number: DRV8818 Hi Team,
The customer intends to use a current clamp to measure coil current when the static torque of the stepper motor is driven by 8818, but the measured static torque current is not as expected.
The design has a static torque…
Part Number: DRV8818 Other Parts Discussed in Thread: DRV8462 , MSPM0G3507 e2e,
Do you have any collateral/support regarding the firmware implementation for current sensing with external shunt with DRV8462. I want to implement a closed loop control with…
Part Number: DRV8818 Other Parts Discussed in Thread: DRV8880 , DRV8462 , DRV8434A , DRV8434 , DRV8434S , DRV8452 , DRV8426 Hi，
Problem description：
The client has been using a DRV8818 chip to drive a stepper motor to control the vertical direction of a short…
