Details

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BUY MB3769A. https://www.utsource.net/itm/p/12611967.html

Parameter	Description	Value
Part Number	IC for Motor Drive	MB3769A
Function	Dual H-Bridge Motor Driver
Supply Voltage	Operating Voltage Range	2.7V to 10.8V
Output Current	Continuous Output Current per Channel	1.2A (max)
Peak Current	Peak Output Current per Channel	2.0A (max)
Operating Temp.	Operating Temperature Range	-40掳C to 85掳C
Package	Package Type	QFN-24
Control Inputs	PWM Input, Direction Control
Protection	Overcurrent Protection	Yes
Protection	Thermal Shutdown	Yes
Protection	Undervoltage Lockout	Yes
Logic Level	Compatible Logic Levels	1.8V, 3.3V, 5V

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage is within the operating range of 2.7V to 10.8V.
   • Use appropriate decoupling capacitors (e.g., 100nF and 10uF) close to the power pins to stabilize the supply.

2. Motor Connection:

   • Connect the motor leads to the OUT1, OUT2, OUT3, and OUT4 pins as required for dual H-bridge operation.
   • Ensure the motors do not exceed the maximum current ratings.

3. Control Signals:

   • Use PWM signals to control the speed of the motors.
   • Use direction control signals to set the direction of rotation for each motor.

4. Protection:

   • The IC includes overcurrent protection, thermal shutdown, and undervoltage lockout. Ensure these features are not triggered by operating within the specified limits.

5. Thermal Management:

   • Provide adequate heat sinking if operating at high currents or temperatures to prevent thermal shutdown.

6. Layout Considerations:

   • Keep the power and ground traces wide and short to minimize inductance and resistance.
   • Place the IC away from heat sources and ensure good airflow for cooling.

7. Testing:

   • Before final assembly, test the IC with a simple motor setup to verify correct operation and protection features.

For detailed application notes and further information, refer to the datasheet provided by the manufacturer.

(For reference only)