This DC motor driver module is designed for high-power industrial applications. It is built with a robust industrial design featuring a range of protective circuits to ensure long-lasting and reliable operation.

Key Features:

1. Industrial-Grade Build: The module is designed for stability and reliability, with anti-static, transient suppression, undervoltage protection, ESD, and overvoltage protection circuits.

2. Wide Voltage Range: Supports input voltage between 9V and 36V. The module can handle a maximum sustained current of:

   • 12A without heat dissipation

   • 15A with basic heat dissipation

   • 20A with a thick heat sink.

3. PWM and Control Logic: The module uses L298 drive logic with three control lines (PWM, IN1, IN2) for precise speed control, forward and reverse motion, and braking. It supports a full PWM range, making it highly versatile for different applications.

4. 5V Output: Provides 5V output for microcontrollers and offers overcurrent protection and signal overvoltage protection.

5. Compatibility: The control signal interface is compatible with 3.3V and 5V TTL levels, making it suitable for most modern microcontrollers.

Control Signal Logic:

IN1IN2PWMOutput00×Brake11×Float101Full Speed Forward011Full Speed Reverse10PWMControlled Forward01PWMControlled Reverse

Product Specifications:

• Input Voltage: 6V to 36V (Ensure not to exceed 37V, and protect the module with a 20A fuse).

• Output Current: 12A to 15A (basic cooling required), 15A to 20A (with thick heat sink).

• PWM Frequency: 0 - 100kHz (20kHz recommended).

• Operating Temperature: -25°C to 80°C.

• Dimensions: 55mm x 55mm x 25mm with 3mm mounting holes.

Motor Parameters:

• For 36V Motors: Rated power up to 500W (requires heat dissipation for motors above 300W).

• For 24V Motors: Rated power up to 330W (requires heat dissipation for motors above 250W).

• For 12V Motors: Rated power up to 120W (requires heat dissipation for motors above 90W).

Wiring Instructions:

• Microcontroller Control: Connect the drive module COM pin to the power supply and use PWM and IN1/IN2 to control motor speed and direction.

• Key Control: Use PB1 and PB2 keys to control motor direction and braking.

Precautions:

1. Ensure the supply voltage is between 6V and 36V. Exceeding this may damage the module.

2. Avoid reversing the motor too quickly—allow for a 0.1s delay before reversing.

3. Keep signal lines away from motor power lines to avoid interference.

4. Always connect the motor before powering the module to prevent damage.

This module is suitable for industrial applications requiring precise DC motor control, including robotics, automation, and high-power motor systems. Its versatile control methods and protection features ensure reliable and long-term operation.