L6207D

L6207D

Product Overview

• Category: Integrated Circuit
• Use: Motor Driver
• Characteristics: High voltage, high current, bipolar stepper motor driver
• Package: Multiwatt15
• Essence: Power management and control for stepper motors
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage: 8V to 52V
• Output Current: Up to 2.8A
• Output Voltage: Up to 52V
• Logic Inputs: CMOS/TTL compatible
• Operating Temperature: -40°C to +150°C
• Protection Features: Thermal shutdown, overcurrent protection, undervoltage lockout

Detailed Pin Configuration

1. VREF: Reference voltage for the motor current
2. GND: Ground
3. OUT1: Output 1 of the H-bridge
4. OUT2: Output 2 of the H-bridge
5. OUT3: Output 3 of the H-bridge
6. OUT4: Output 4 of the H-bridge
7. VCC: Logic supply voltage
8. VCP: Charge pump capacitor connection
9. CP1: Charge pump capacitor connection
10. CP2: Charge pump capacitor connection
11. CP3: Charge pump capacitor connection
12. CP4: Charge pump capacitor connection
13. CP5: Charge pump capacitor connection
14. CP6: Charge pump capacitor connection
15. CP7: Charge pump capacitor connection

Functional Features

• Full bridge driver with integrated power DMOS transistors
• PWM current control with adjustable decay mode
• Overcurrent detection and protection
• Thermal shutdown protection
• Undervoltage lockout protection
• Step and direction interface
• Adjustable motor current through external resistor
• Low quiescent current standby mode

Advantages and Disadvantages

Advantages

• High voltage and current capability
• Integrated power DMOS transistors simplify design
• Adjustable motor current for flexibility
• Protection features ensure safe operation
• Low standby current for energy efficiency

Disadvantages

• Limited to bipolar stepper motors
• Requires external resistor for motor current adjustment

Working Principles

The L6207D is a full bridge driver designed for bipolar stepper motors. It utilizes integrated power DMOS transistors to control the motor's current and direction. The driver receives step and direction signals from a microcontroller or other control circuitry. By adjusting the PWM current control with adjustable decay mode, the L6207D can accurately control the motor's speed and position. The driver also incorporates various protection features such as overcurrent detection, thermal shutdown, and undervoltage lockout to ensure safe operation.

Detailed Application Field Plans

The L6207D is commonly used in various applications that require precise control of bipolar stepper motors. Some typical application fields include:

1. Robotics: The driver is used in robotic systems to control the movement of robot arms, legs, or other mechanical components.
2. CNC Machines: The L6207D is employed in computer numerical control (CNC) machines to drive the stepper motors responsible for precise positioning of the cutting tools.
3. 3D Printers: The driver is utilized in 3D printers to control the movement of the print head and build platform, enabling accurate layer-by-layer printing.
4. Automated Equipment: The L6207D finds application in automated equipment such as conveyor systems, packaging machines, and assembly lines, where precise motor control is essential.

Detailed and Complete Alternative Models

1. L6206D: Similar to L6207D but with lower output current capability (up to 1.5A).
2. L6208D: Similar to L6207D but with higher output current capability (up to 3.5A).
3. DRV8825: Stepper motor driver from Texas Instruments with similar features and capabilities.
4. A4988: Another popular stepper motor driver with adjustable current control.

These alternative models provide options for different motor current requirements and can be considered based on specific application needs.

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