Details

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Parameter	Symbol	Min	Typical	Max	Unit	Description
Supply Voltage	VDD	8.2	-	45	V	Operating voltage range for the device.
Logic Supply Voltage	VREGIN	3.0	-	5.5	V	Logic supply voltage range.
Maximum RMS Current per Phase	IRMS	-	1.4	2.5	A	Maximum RMS current per phase, dependent on thermal conditions.
Maximum Peak Current per Phase	IPEAK	-	2.0	3.5	A	Maximum peak current per phase, dependent on thermal conditions.
Thermal Shutdown	TSD	-	-	160	°C	Temperature at which the device will shut down to prevent damage.
Under-Voltage Lockout	UVLO	7.0	-	-	V	Minimum supply voltage required for operation.
Step Input Frequency	fSTEP	0	-	400	kHz	Maximum step input frequency.
Microstep Resolution	-	-	1/32	-	-	Microstep resolution setting.
Standby Current Reduction	-	-	50	-	%	Reduction in phase current during standby mode.
Fault Output	nFAULT	-	-	-	-	Active low open-drain output that indicates fault conditions.

Instructions for Using the DRV8824PWPR

1. Power Supply Connections:

   • Connect the main power supply (VDD) to the motor driver. Ensure the voltage is within the 8.2V to 45V range.
   • Connect the logic supply (VREGIN) to the logic circuitry. The voltage should be between 3.0V and 5.5V.

2. Motor Connection:

   • Connect the motor phases to the appropriate motor output pins (A1, A2, B1, B2).

3. Step and Direction Inputs:

   • Connect the step input (STEP) to the control signal that will trigger each step.
   • Connect the direction input (DIR) to the control signal that will set the direction of rotation.

4. Microstep Configuration:

   • Set the microstep resolution using the MS1, MS2, and MS3 pins. Refer to the datasheet for specific pin configurations.

5. Enable and Sleep Control:

   • Use the EN/SLEEP pin to enable or disable the driver. High enables the driver, low disables it.
   • The SLP pin can be used to put the driver into a low-power sleep mode.

6. Fault Monitoring:

   • Monitor the nFAULT pin to detect any fault conditions. This pin goes low when a fault occurs.

7. Thermal Management:

   • Ensure adequate heat dissipation to keep the device temperature below the thermal shutdown threshold (160°C).

8. Under-Voltage Lockout:

   • The device will not operate if the supply voltage drops below 7.0V.

9. Standby Mode:

   • In standby mode, the phase current is reduced by 50% to save power. This is controlled by the SLP pin.

10. Programming and Testing:

    • Test the setup with a simple program to verify the step and direction inputs are working correctly.
    • Gradually increase the complexity of the program to include microstepping and other advanced features.

For detailed information and specific applications, refer to the DRV8824PWPR datasheet and application notes provided by Texas Instruments.

(For reference only)