Hey Simeon,
Are you driving a stepper motor or 1x or 2x Brushed DC motors?
Check out 7.3.3 Current Control in the datasheet. ICHOP is for current regulation - it will try to keep the current at or below the chopping current set. Overcurrent protection…
Hey Guru,
Ahh I think I figured it out. My previous answer was incorrect - I was looking at the DRV8424 which has 1/256 microstepping built in, and I think you are too. However, the DRV8424PEVM uses the DRV8424E device on it which does not have integrated…
Part Number: DRV8424 Other Parts Discussed in Thread: DRV8256 , , Hello Team,
We are using DRV8424PPWPR to drive the stepper motor. I have four signals coming from FPGA namely,
1. Enable,
2. Step,
3. PWMIN1
4. PWMIN2.
For this DRV8424PPWPR devie we have…
Hi William,
Sorry if my answer was confusing, your DRV8424P is perfect for this application.
Let me elaborate, the DRV8424 has 3 different variants that will change how the device is controlled:
DRV8424 will be controlled by STEP/DIR
DRV8424E will be…
Hello,
Overall it looks good. The inductor (L501) on VCC is unusual and we don't normally recommend it. The inductor can cause ringing when it interacts with the bulk capacitor. I recommend testing the design without the inductor first (add a 0-ohm…
Wenting,
The latest PH-EN devices are DRV84xx family. Would you check DRV8424R or DRV8434E to see if it can meeting your requirement? BTW, the DRV8424E/34E full scale current is 2.5A.
Hi Jiandong,
The DRV8428E is similar to the DRV8835. The DRV8428E is rated for 33V and 1.7 peak output current. If the customer requires a higher current rated device, the DRV8424E and DRV8426E are good options. The DRV8424E, DRV8426E, and DRV8428E can…