TB6561NG,8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High voltage, high current, bipolar stepper motor driver
• Package: 28-pin SSOP package
• Essence: Efficient and reliable motor control solution
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Operating Voltage: 10V to 35V
• Output Current: Up to 3.5A per phase
• Microstep Resolution: Full, half, quarter, eighth, sixteenth, and thirty-second steps
• Protection Features: Overcurrent protection, thermal shutdown, and undervoltage lockout

Pin Configuration

The TB6561NG,8 has the following pin configuration:

1. VREF - Reference voltage input for motor current control
2. OUT1 - Output terminal 1 for motor coil A
3. OUT2 - Output terminal 2 for motor coil A
4. OUT3 - Output terminal 1 for motor coil B
5. OUT4 - Output terminal 2 for motor coil B
6. GND - Ground reference
7. CP1 - Capacitor connection for internal current control
8. CP2 - Capacitor connection for internal current control
9. VCC - Positive power supply voltage
10. EN - Enable input for motor driver
11. CLK - Clock input for microstepping control
12. CW/CCW - Direction control input
13. MODE0 - Microstep resolution selection bit 0
14. MODE1 - Microstep resolution selection bit 1
15. RESET - Reset input for motor driver
16. SLEEP - Sleep mode control input
17. FAULT - Fault output indicating overcurrent or thermal shutdown
18. REF - Reference voltage output for motor current control
19. VREF - Reference voltage input for motor current control
20. OUT1 - Output terminal 1 for motor coil A
21. OUT2 - Output terminal 2 for motor coil A
22. OUT3 - Output terminal 1 for motor coil B
23. OUT4 - Output terminal 2 for motor coil B
24. GND - Ground reference
25. CP1 - Capacitor connection for internal current control
26. CP2 - Capacitor connection for internal current control
27. VCC - Positive power supply voltage
28. EN - Enable input for motor driver

Functional Features

• High voltage and high current capability for driving bipolar stepper motors
• Six selectable microstep resolutions for precise motor control
• Built-in protection features to prevent damage from overcurrent, thermal shutdown, and undervoltage conditions
• Enable and sleep mode control inputs for power management
• Fault output for indicating overcurrent or thermal shutdown conditions

Advantages and Disadvantages

Advantages: - High voltage and current ratings allow driving a wide range of stepper motors - Multiple microstep resolutions provide flexibility in motor control - Integrated protection features enhance system reliability - Enable and sleep mode inputs enable efficient power management

Disadvantages: - Limited to driving bipolar stepper motors only - Requires external capacitors for internal current control

Working Principles

The TB6561NG,8 is an integrated circuit designed to drive bipolar stepper motors. It operates by receiving control signals through various input pins, such as CLK (clock), CW/CCW (direction), and MODE0/MODE1 (microstep resolution). These signals determine the motor's rotation direction, step size, and speed.

The IC generates the necessary current waveforms to drive the motor coils through its output pins (OUT1, OUT2, OUT3, OUT4). By controlling the current flow in each coil, the motor can be accurately positioned and rotated.

The TB6561NG,8 incorporates protection features like overcurrent protection, thermal shutdown, and undervoltage lockout to safeguard the motor driver and connected components from potential damage.

Detailed Application Field Plans

The TB6561NG,8 is widely used in various applications that require precise control of bipolar stepper motors. Some common application fields include:

1. Robotics: Used in robotic systems for precise movement control of robot arms, grippers, and other motorized components.
2. CNC Machines: Integrated into computer numerical control (CNC) machines to control the movement of cutting tools, spindles, and other machine parts.
3. 3D Printers: Utilized in 3D printers to precisely position the print head and control the extrusion process.
4. Automated Equipment: Incorporated into automated equipment and machinery for accurate positioning and motion control.
5. Industrial Automation: Applied in industrial automation systems for controlling conveyor belts, assembly lines, and other motor-driven processes.

Alternative Models

• TB6600: Similar motor driver IC with