MP6500GF-Z

Product Overview

• Category: Motor Driver
• Use: Controlling and driving stepper motors
• Characteristics: High performance, compact size, advanced features
• Package: QFN-28
• Essence: Integrated circuit for motor control
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Operating Voltage: 8V to 35V
• Output Current: Up to 3.5A per phase
• Microstepping: Up to 1/32 step resolution
• Protection Features: Overcurrent, overtemperature, undervoltage lockout

Detailed Pin Configuration

The MP6500GF-Z has a total of 28 pins. The pin configuration is as follows:

1. VREF - Reference voltage input
2. GND - Ground
3. VCP - Charge pump output
4. CP1 - Charge pump capacitor connection
5. CP2 - Charge pump capacitor connection
6. VDD - Logic power supply
7. STEP - Step input
8. DIR - Direction input
9. MODE0 - Microstepping mode selection
10. MODE1 - Microstepping mode selection
11. MODE2 - Microstepping mode selection
12. RESET - Reset input
13. SLEEP - Sleep mode control
14. FAULT - Fault indication output
15. VBB - Bootstrap supply voltage
16. PHASE1 - Phase output
17. PHASE1B - Phase output
18. PHASE2 - Phase output
19. PHASE2B - Phase output
20. VREG - Internal regulator output
21. AGND - Analog ground
22. VM - Motor power supply
23. VSENSE1 - Current sense input
24. VSENSE2 - Current sense input
25. VSENSE3 - Current sense input
26. VSENSE4 - Current sense input
27. NC - No connection
28. NC - No connection

Functional Features

• High-performance motor control with smooth and precise motion
• Advanced microstepping technology for improved accuracy and reduced noise
• Overcurrent protection to prevent damage to the motor and driver
• Fault indication output for easy troubleshooting
• Sleep mode control for power saving when motor is not in use

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into various applications - High output current capability for driving a wide range of stepper motors - Advanced features like microstepping and fault indication enhance motor control performance

Disadvantages: - Requires external components for proper operation (charge pump capacitors, bootstrap supply) - Limited to a maximum of 1/32 step resolution

Working Principles

The MP6500GF-Z is based on a chopper drive technique that regulates the motor current using PWM (Pulse Width Modulation) signals. It utilizes a charge pump to generate a higher voltage for driving the high-side MOSFETs. The driver receives step and direction signals from a controller and converts them into appropriate current levels to control the stepper motor. By adjusting the timing and duration of the current pulses, the driver can achieve different step resolutions and control the motor's speed and position accurately.

Detailed Application Field Plans

The MP6500GF-Z is widely used in various applications that require precise control of stepper motors. Some common application fields include:

1. Robotics: Controlling robotic arms, joints, and actuators.
2. CNC Machines: Driving the axes of computer numerical control machines.
3. 3D Printers: Precise positioning and movement control of print heads.
4. Automated Equipment: Motorized stages, conveyors, and positioning systems.
5. Medical Devices: Precision control of medical equipment such as pumps and scanners.

Detailed and Complete Alternative Models

1. DRV8825: A popular motor driver with similar features and capabilities.
2. A4988: Cost-effective alternative with lower current capacity but suitable for many applications.
3. TMC2209: Advanced driver with additional features like stealthChop for silent operation.

These alternative models offer different trade-offs in terms of cost, performance, and additional features, providing flexibility for various motor control requirements.

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