TB67S142NG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High voltage, high current, bipolar stepper motor driver
• Package: QFN (Quad Flat No-leads) package
• Essence: Efficient and reliable motor control solution
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Operating Voltage: 10V to 44V
• Output Current: Up to 3A per phase
• Microstepping: Full, half, quarter, eighth, sixteenth, and thirty-second steps
• Protection Features: Overcurrent protection, thermal shutdown, and undervoltage lockout
• Control Interface: Step and direction inputs
• Logic Voltage: 3.3V or 5V compatible
• Operating Temperature: -40°C to +125°C

Detailed Pin Configuration

The TB67S142NG has the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. STP: Step input for controlling motor movement
4. DIR: Direction input for controlling motor rotation
5. MS1, MS2: Microstep selection inputs
6. RESET: Reset input for clearing internal registers
7. FAULT: Fault output indicating overcurrent or thermal shutdown
8. OUT1, OUT2: Output pins for connecting to motor coils
9. VREF: Reference voltage input for setting motor current

Functional Features

• Supports various microstepping modes for smooth motor operation
• Built-in protection features ensure safe operation and prevent damage
• High voltage and current capability enable driving of powerful motors
• Compatible with both 3.3V and 5V logic systems
• Compact QFN package allows for space-efficient designs

Advantages and Disadvantages

Advantages: - Versatile microstepping options for precise motor control - Robust protection features safeguard against potential faults - Wide operating voltage range allows for flexibility in system design - High output current capability enables driving of demanding motors

Disadvantages: - Limited to bipolar stepper motor applications - Requires external components for proper operation - Higher cost compared to simpler motor driver solutions

Working Principles

The TB67S142NG is a bipolar stepper motor driver that utilizes pulse width modulation (PWM) signals to control the motor's movement. The step input (STP) determines the number of steps the motor takes, while the direction input (DIR) controls the rotation direction. By adjusting the microstep selection inputs (MS1, MS2), the driver can achieve different levels of microstepping, allowing for smoother and more precise motor motion.

Detailed Application Field Plans

The TB67S142NG is commonly used in various applications that require precise control of bipolar stepper motors. Some typical application fields include:

1. Robotics: Controlling robotic arms, joints, and other motorized mechanisms.
2. CNC Machines: Driving stepper motors in computer numerical control systems for precise positioning.
3. 3D Printers: Providing accurate control of the printer's extruder and movement mechanisms.
4. Automated Equipment: Enabling precise movement in automated assembly lines and machinery.
5. Camera Systems: Controlling focus, zoom, and pan/tilt mechanisms in camera systems.

Detailed and Complete Alternative Models

1. A4988: A popular alternative with similar specifications and functionality.
2. DRV8825: Another widely used motor driver with higher current capabilities.
3. L298N: Suitable for driving both stepper and DC motors.
4. TMC2209: Offers advanced features like stealthChop and stall detection.

These alternative models provide similar motor control capabilities and can be considered based on specific application requirements.

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