How to Use TB660 Stepper Motor Driver : Examples, Pinouts, and Specs

The TB660 Stepper Motor Driver, manufactured by Tofelf (Part ID: B0BZYX7Z4Z), is a versatile and efficient driver designed for controlling stepper motors with precision. It supports adjustable current control, enabling compatibility with a wide range of stepper motor types. The TB660 is ideal for applications requiring smooth and accurate motor movement, such as 3D printers, CNC machines, robotics, and automated systems.

• 3D printers for precise layer-by-layer movement
• CNC machines for accurate cutting and engraving
• Robotics for controlled motion
• Automated conveyor systems
• Camera sliders and gimbals

The TB660 Stepper Motor Driver is designed to provide reliable performance with the following key specifications:

The TB660 Stepper Motor Driver has the following pinout:

1. Power Connections:

   • Connect the motor power supply (9V to 42V) to the VM pin.
   • Connect the logic power supply (4.5V to 5.5V) to the VCC pin.
   • Ensure a common ground connection between the motor power supply, logic power supply, and the GND pin.

2. Motor Connections:

   • Connect the stepper motor's coil wires to the OUT1A, OUT1B, OUT2A, and OUT2B pins. Refer to your motor's datasheet for the correct wiring.

3. Control Signals:

   • Use the STEP pin to send pulses for motor movement. Each pulse corresponds to one step.
   • Use the DIR pin to set the motor's rotation direction (HIGH for clockwise, LOW for counterclockwise).

4. Microstepping Configuration:

   • Set the microstepping mode using the MS1, MS2, and MS3 pins. Refer to the table below for configuration:

5. Enable/Disable:
   • Pull the EN pin LOW to enable the driver. Pull it HIGH to disable the driver.

Below is an example of how to control the TB660 Stepper Motor Driver using an Arduino UNO:

// Define pin connections
#define STEP_PIN 3  // Connect to the STEP pin of TB660
#define DIR_PIN 4   // Connect to the DIR pin of TB660
#define EN_PIN 5    // Connect to the EN pin of TB660

void setup() {
  pinMode(STEP_PIN, OUTPUT); // Set STEP pin as output
  pinMode(DIR_PIN, OUTPUT);  // Set DIR pin as output
  pinMode(EN_PIN, OUTPUT);   // Set EN pin as output

  digitalWrite(EN_PIN, LOW); // Enable the driver
}

void loop() {
  digitalWrite(DIR_PIN, HIGH); // Set direction to clockwise
  for (int i = 0; i < 200; i++) { // Rotate 200 steps (1 revolution for a 1.8° stepper)
    digitalWrite(STEP_PIN, HIGH); // Generate a step pulse
    delayMicroseconds(1000);      // Pulse duration
    digitalWrite(STEP_PIN, LOW);  // End of pulse
    delayMicroseconds(1000);      // Delay between steps
  }

  delay(1000); // Wait for 1 second

  digitalWrite(DIR_PIN, LOW); // Set direction to counterclockwise
  for (int i = 0; i < 200; i++) { // Rotate 200 steps in the opposite direction
    digitalWrite(STEP_PIN, HIGH);
    delayMicroseconds(1000);
    digitalWrite(STEP_PIN, LOW);
    delayMicroseconds(1000);
  }

  delay(1000); // Wait for 1 second
}

• Use a heatsink or cooling fan if the driver operates at high currents for extended periods.
• Ensure the motor power supply voltage matches the motor's rated voltage.
• Avoid disconnecting the motor while the driver is powered to prevent damage.

1. Motor Not Moving:

   • Verify the power supply connections to VM and VCC.
   • Check the EN pin state (should be LOW to enable the driver).
   • Ensure the STEP and DIR signals are being sent correctly.

2. Motor Vibrates but Doesn't Rotate:

   • Check the wiring of the motor coils. Incorrect connections can cause this issue.
   • Verify the microstepping mode configuration.

3. Driver Overheating:

   • Ensure proper cooling with a heatsink or fan.
   • Reduce the motor current by adjusting the current control potentiometer (if available).

4. Motor Moves in the Wrong Direction:

   • Reverse the connections of one motor coil (e.g., swap OUT1A and OUT1B).

• Can I use the TB660 with a 12V stepper motor? Yes, as long as the motor's current rating is within the driver's limits.

• What happens if I exceed the maximum current rating? The driver may overheat or enter thermal shutdown. Always stay within the specified limits.

• Can I use the TB660 with a 24V power supply? Yes, the TB660 supports motor supply voltages up to 42V.

By following this documentation, you can effectively integrate the TB660 Stepper Motor Driver into your projects for precise and reliable motor control.