DRV8818PWP

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Instructions for DRV8818PWP

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 4.5V to 36V.

2. Temperature Management:

   • The operating temperature range is from -40°C to 85°C. Avoid exceeding these limits to prevent damage or thermal shutdown.

3. Current Handling:

   • For peak current applications, ensure that the peak current does not exceed 3.5A at 25°C junction temperature.
   • For continuous operation, limit the current to 1.4A at 70°C junction temperature to avoid overheating.

4. Power-On Sequence:

   • Apply the supply voltage (Vcc) before enabling any control signals to ensure stable operation.

5. Quiescent and Shutdown Currents:

   • In normal operation, the quiescent current is typically 20mA.
   • When in shutdown mode, the current consumption drops to approximately 0.2μA.

6. Thermal Protection:

   • The device includes thermal shutdown protection which activates at approximately 150°C. Ensure adequate heat dissipation to prevent reaching this threshold.

7. Control Signals:

   • Refer to the datasheet for specific timing and logic levels required for the STEP/DIR interface when using the DRV8818PWP with stepper motors.

8. PCB Layout Considerations:

   • Use wide traces and ground planes to reduce thermal resistance and improve heat dissipation.
   • Place decoupling capacitors close to the power pins to minimize noise and stabilize the supply voltage.

9. Safety Precautions:

   • Always observe proper ESD precautions when handling the device.
   • Ensure all connections are secure and correct to prevent short circuits or damage to the device.