L6520

Product Overview

• Category: Integrated Circuit
• Use: Motor Driver
• Characteristics: High voltage, high current, compact size
• Package: DIP (Dual In-line Package)
• Essence: Power MOSFET and bipolar technology integration
• Packaging/Quantity: 25 pieces per tube

Specifications

• Voltage Range: 8V to 52V
• Output Current: Up to 5A
• Operating Temperature: -40°C to +150°C
• Control Interface: Parallel or Serial
• Protection Features: Overcurrent, overtemperature, undervoltage lockout

Detailed Pin Configuration

The L6520 has a total of 16 pins. The pin configuration is as follows:

1. VCC - Positive power supply
2. GND - Ground reference
3. IN1 - Input control signal 1
4. IN2 - Input control signal 2
5. EN - Enable input
6. OUT1 - Output 1
7. OUT2 - Output 2
8. VREF - Reference voltage for internal circuitry
9. VCP - Charge pump capacitor connection
10. CP - Charge pump output
11. VBOOT - Bootstrap voltage
12. HO - High-side gate driver output
13. LO - Low-side gate driver output
14. VS - Sense resistor connection
15. CS - Current sense output
16. VSENSE - Voltage sense input

Functional Features

• Dual H-bridge configuration for bidirectional motor control
• Internal charge pump for high-side gate drive
• Adjustable current sensing for accurate current measurement
• Overcurrent protection with adjustable threshold
• Undervoltage lockout for safe operation
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages: - High voltage and current capability - Compact size for space-constrained applications - Versatile control interface options - Comprehensive protection features

Disadvantages: - Limited output current compared to some other motor drivers - Relatively high operating temperature range

Working Principles

The L6520 is designed to drive DC motors with high efficiency and reliability. It utilizes a combination of power MOSFETs and bipolar transistors to achieve optimal performance. The integrated charge pump generates the necessary voltage levels for driving the high-side MOSFETs, eliminating the need for external components.

The control interface allows for easy integration into various motor control systems. The device can be controlled in parallel mode, where each input controls one half of the H-bridge, or in serial mode, where a single input controls both halves simultaneously.

Detailed Application Field Plans

The L6520 is widely used in various applications that require precise motor control. Some of the common application fields include:

1. Robotics: Used in robotic arms, grippers, and mobile robots for precise movement control.
2. Industrial Automation: Employed in conveyor systems, CNC machines, and packaging equipment for accurate positioning and speed control.
3. Automotive: Integrated into electric power steering systems, seat adjustment mechanisms, and window regulators for smooth and reliable motor control.
4. Home Appliances: Utilized in washing machines, dishwashers, and HVAC systems for efficient motor control.

Detailed and Complete Alternative Models

1. L6203 - Dual full-bridge driver with similar specifications and functionality.
2. L293D - Quadruple half-bridge driver suitable for lower voltage and current applications.
3. DRV8825 - Stepper motor driver with adjustable current control and microstepping capability.

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

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