Details

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BUY DRV8834RGER https://www.utsource.net/itm/p/8974997.html
IC MTR DRV BIPLR 2.5-10.8V 24QFN

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VCC	2.7		10.8	V	Power supply voltage for logic and motor driver
Standby Current	ISTBY		5	20	μA	Quiescent current in standby mode
Operating Current	IOP		160	240	mA	Operating current per bridge (max continuous)
Peak Current	IPEAK		320	480	mA	Peak current per bridge
Logic Input Voltage	VIL	0	0.8	1.8	V	Maximum input voltage for low level
Logic Input Voltage	VIH	2.0	3.5	5.5	V	Minimum input voltage for high level
Output Low Voltage	VOL	0	0.4	0.8	V	Output low voltage at 200mA
Output High Voltage	VOH	2.4	3.3	5.0	V	Output high voltage at -200mA
Thermal Shutdown	TSD	150			°C	Thermal shutdown temperature
Operating Temperature	TOPR	-40		85	°C	Operating ambient temperature range
Storage Temperature	TSTG	-65		150	°C	Storage temperature range

Instructions

1. Power Supply:

   • Connect the VCC pin to a power supply within the range of 2.7V to 10.8V.
   • Ensure the power supply can provide sufficient current to meet the operating and peak current requirements.

2. Logic Inputs:

   • Apply logic levels to the control pins (STEP, DIR, SLP, MS1, MS2) as per the application requirements.
   • Ensure the logic input voltages are within the specified range (VIL and VIH).

3. Motor Connection:

   • Connect the motor to the AOUT1, AOUT2, BOUT1, and BOUT2 pins.
   • Use the appropriate current limit settings to avoid exceeding the maximum continuous or peak current ratings.

4. Standby Mode:

   • Set the SLP pin to a low level to enter standby mode, reducing quiescent current.
   • To exit standby mode, set the SLP pin to a high level.

5. Microstepping:

   • Configure the microstepping mode using the MS1 and MS2 pins.
   • Refer to the datasheet for specific combinations of MS1 and MS2 to achieve the desired microstepping resolution.

6. Thermal Management:

   • Monitor the operating temperature to ensure it does not exceed 85°C.
   • If the device reaches the thermal shutdown temperature (150°C), it will automatically shut down to prevent damage.

7. Storage:

   • Store the device in an environment with a temperature range of -65°C to 150°C to avoid damage.

8. Protection Features:

   • The device includes overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO) to protect against common fault conditions.

9. Layout Considerations:

   • Place the device close to the power supply and motor to minimize parasitic inductance and resistance.
   • Use decoupling capacitors near the VCC pin to filter out noise and provide stable power.

10. Testing:

    • Before finalizing the design, test the device under various operating conditions to ensure reliable performance.

(For reference only)