Part Number: DRV8889-Q1 I have a question regarding the output of the DRV8889 IC.
Please look at the attached waveforms A and B. Waveform B shows a cleaner and more stable decay waveform. Waveform A is slightly irregular and has noise.
The settings…
Part Number: DRV8889-Q1 Hi experts,
We use the DRV-8889Q1 stepper driver chip in our custom borad. When trying to do diagnosis, an open-load fault is reported. However, I have already connected the stepper motor and can control it normally. Is there…
Part Number: DRV8889-Q1 Other Parts Discussed in Thread: LP-MSPM0G3507 There is no LP-MSPM0G3507 setup project in the SDK for MSPM0x, so I've adjusted one of provided examples for other MSPM0x based LPs. I have few questions.
I did follow the setup…
Hi Jongyeon,
Thanks for posting in this forum.
What was the VM supply voltage and what was the TRQ_DAC setting used? Can you please share the motor datasheet or its L and R values?
JONGYEON BYEON said: ## OBSERVED BEHAVIOR EVM board — both CW and…
Part Number: DRV8889-Q1 Dear TI Team,
I have an issue with the SPI communication of the DRV8889 stepper motor driver. Maybe ist similar to the post https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1504181/drv8889-q1…
Hi Chase,
Thanks for the post. I reviewed the attached schematic for 2x DRV8889-Q1. It follows our datasheet recommendations for external components. The capacitor on VREF C507 and C518 are not required and can be removed.
Regards, Murugavel
Hi Jongyeon,
JONGYEON BYEON said: Do you mean that a value over 200 is rather unreliable??
Yes, a value of over 200 indicates abnormal torque count, which happens under certain conditions - motor coil resistance > 10 Ω, VM < 10 V, motor speed faster…
Part Number: DRV8889-Q1 Dear TI Team,
if we use the driver in fullstep mode (0000 or 0001), we see heavy step losses with our motor. Its occurs under different speed conditions, alos very slow. The orange line is recorded with 1/2 step mode, the blue…
Part Number: DRV8889-Q1 Tool/software: Thank you for your help.
There have been three cases where circuits using the DRV8889-Q1 suddenly stopped working. The cause of these cases was a failure of the DRV8889-Q1. No output was obtained when commands…
Part Number: DRV8889-Q1 Hello, this is Sydney from YMJ TECH CO. LTD.
We're urgent need of ERRATA data for the p/n DRV8889AQWRGERQ1.
We look forward to your prompt reply. Thank you.
