How to Use IBT_2: Examples, Pinouts, and Specs

The IBT_2, manufactured by YO with the part ID PUENTE H, is an integrated circuit designed for driving motors and controlling power in various applications. It features high efficiency, low heat generation, and robust performance, making it ideal for projects requiring precise motor control. The IBT_2 is commonly used in robotics, electric vehicles, and industrial automation systems.

• DC motor control for robotics and automation
• Electric vehicle motor drivers
• Conveyor belt systems
• High-power LED dimming
• Industrial machinery requiring bidirectional motor control

The IBT_2 module has a total of 8 pins for control and power connections. Below is the pinout description:

1. Power Connections:

   • Connect the motor power supply to the VM+ and VM- pins. Ensure the voltage is within the range of 6V to 27V.
   • Connect the logic power supply (3.3V or 5V) to the VCC pin and ground to the GND pin.

2. Control Connections:

   • Use the INA and INB pins to control the motor's direction:
     • INA = HIGH and INB = LOW: Motor rotates in one direction.
     • INA = LOW and INB = HIGH: Motor rotates in the opposite direction.
     • Both INA and INB LOW: Motor stops.
   • Connect the PWM pin to a microcontroller or PWM signal generator to control motor speed.
   • Set the EN pin HIGH to enable the motor driver.

3. Motor Connections:

   • Connect the motor terminals to the output terminals of the IBT_2 module.

• Use a heat sink or active cooling if operating at high currents for extended periods.
• Ensure the power supply can handle the peak current requirements of the motor.
• Use appropriate decoupling capacitors near the power supply pins to reduce noise.
• Avoid reversing the polarity of the power supply connections to prevent damage.

Below is an example of how to control a motor using the IBT_2 and an Arduino UNO:

• VCC → Arduino 5V
• GND → Arduino GND
• INA → Arduino Digital Pin 7
• INB → Arduino Digital Pin 8
• PWM → Arduino Digital Pin 9 (PWM-capable pin)
• EN → Arduino Digital Pin 10
• VM+ → Motor power supply positive terminal
• VM- → Motor power supply ground
• Motor terminals → IBT_2 motor output terminals

// Define control pins for IBT_2
const int INA = 7;  // Direction control pin A
const int INB = 8;  // Direction control pin B
const int PWM = 9;  // PWM pin for speed control
const int EN = 10;  // Enable pin

void setup() {
  // Set pin modes
  pinMode(INA, OUTPUT);
  pinMode(INB, OUTPUT);
  pinMode(PWM, OUTPUT);
  pinMode(EN, OUTPUT);

  // Enable the motor driver
  digitalWrite(EN, HIGH);
}

void loop() {
  // Rotate motor in one direction at 50% speed
  digitalWrite(INA, HIGH);
  digitalWrite(INB, LOW);
  analogWrite(PWM, 128);  // 50% duty cycle (128 out of 255)
  delay(2000);            // Run for 2 seconds

  // Stop the motor
  digitalWrite(INA, LOW);
  digitalWrite(INB, LOW);
  analogWrite(PWM, 0);    // Set speed to 0
  delay(1000);            // Wait for 1 second

  // Rotate motor in the opposite direction at full speed
  digitalWrite(INA, LOW);
  digitalWrite(INB, HIGH);
  analogWrite(PWM, 255);  // 100% duty cycle
  delay(2000);            // Run for 2 seconds

  // Stop the motor
  digitalWrite(INA, LOW);
  digitalWrite(INB, LOW);
  analogWrite(PWM, 0);    // Set speed to 0
  delay(1000);            // Wait for 1 second
}

1. Motor Not Running:

   • Verify that the EN pin is set HIGH.
   • Check the power supply connections to VM+ and VM-.
   • Ensure the motor is properly connected to the output terminals.

2. Motor Running in the Wrong Direction:

   • Swap the logic levels of INA and INB to reverse the motor direction.

3. Excessive Heat Generation:

   • Ensure the current does not exceed the module's continuous current rating.
   • Use a heat sink or active cooling for high-current applications.

4. PWM Signal Not Working:

   • Confirm that the PWM pin is connected to a PWM-capable pin on the microcontroller.
   • Check the PWM frequency and ensure it is within the supported range (up to 25kHz).

Q: Can the IBT_2 drive stepper motors?
A: No, the IBT_2 is designed for DC motor control and is not suitable for stepper motors.

Q: What happens if both INA and INB are HIGH?
A: This configuration is not recommended as it may cause the motor to brake abruptly or damage the module.

Q: Can I use the IBT_2 with a 3.3V microcontroller?
A: Yes, the IBT_2 supports logic levels of 3.3V and 5V, making it compatible with most microcontrollers.

Q: Is reverse polarity protection included?
A: No, the IBT_2 does not have built-in reverse polarity protection. Ensure correct power supply connections to avoid damage.