L6225DTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High voltage, high current, stepper motor control
• Package: SOIC-20
• Essence: Power driver for controlling bipolar stepper motors
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 8V to 52V
• Output Current: Up to 2.8A
• Output Voltage: Up to 52V
• Logic Inputs: CMOS/TTL compatible
• Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

1. VCP: Charge Pump Capacitor Positive Supply Voltage
2. CP1: Charge Pump Capacitor Negative Supply Voltage
3. CP2: Charge Pump Capacitor Negative Supply Voltage
4. GND: Ground
5. OUT1: Output Phase 1
6. OUT2: Output Phase 2
7. OUT3: Output Phase 3
8. OUT4: Output Phase 4
9. VREF: Reference Voltage
10. REF: Reference Input
11. SLP: Sleep Mode Input
12. DIR: Direction Input
13. STP: Step Input
14. EN: Enable Input
15. VM: Motor Supply Voltage
16. VCC: Logic Supply Voltage
17. VCP: Charge Pump Capacitor Positive Supply Voltage
18. CP1: Charge Pump Capacitor Negative Supply Voltage
19. CP2: Charge Pump Capacitor Negative Supply Voltage
20. GND: Ground

Functional Features

• Full bridge power driver with integrated charge pump
• Designed for bipolar stepper motor control
• Adjustable output current through a reference voltage
• Microstepping capability (up to 1/16 steps)
• Sleep mode for reduced power consumption
• Direction and step inputs for motor control
• Enable input for disabling the outputs

Advantages and Disadvantages

Advantages: - High voltage and current capability - Integrated charge pump for higher efficiency - Adjustable output current for flexibility - Microstepping capability for smoother motion - Sleep mode for reduced power consumption

Disadvantages: - Limited to bipolar stepper motor control - Requires external components for operation - Higher cost compared to simpler motor drivers

Working Principles

The L6225DTR is a full bridge power driver specifically designed for controlling bipolar stepper motors. It utilizes an integrated charge pump to generate the necessary high voltage levels required by the motor. The driver can be controlled through logic inputs such as direction, step, and enable signals. By adjusting the reference voltage, the output current can be set to the desired level. The L6225DTR also supports microstepping, allowing for smoother and more precise motor movements.

Detailed Application Field Plans

The L6225DTR is commonly used in various applications that require precise control of bipolar stepper motors. Some of the typical application fields include:

1. Robotics: The driver is widely used in robotic systems for controlling the movement of robot arms, legs, or other motorized components.
2. CNC Machines: It finds application in computer numerical control (CNC) machines for accurate positioning and control of cutting tools or workpieces.
3. 3D Printers: The L6225DTR is utilized in 3D printers to control the movement of the print head and ensure precise layer-by-layer deposition.
4. Automated Equipment: It is employed in automated equipment and machinery for tasks such as conveyor belt control, material handling, and assembly line operations.

Detailed and Complete Alternative Models

1. L6208: Similar bipolar stepper motor driver with lower voltage and current ratings.
2. L6470: Advanced stepper motor driver with integrated motion control features and SPI interface.
3. DRV8825: Popular motor driver with high current capability and microstepping support.
4. A4988: Cost-effective motor driver with adjustable current and step resolution.

These alternative models provide different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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