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L6208PD
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L6208PD

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High voltage capability - Dual full-bridge driver - Current sensing and protection features - Low quiescent current - Thermal shutdown

Package: PowerSO-36

Essence: The L6208PD is a high voltage dual full-bridge motor driver IC designed for driving bipolar stepper motors. It offers advanced features such as current sensing and protection, making it suitable for various motor control applications.

Packaging/Quantity: The L6208PD is available in a PowerSO-36 package and is typically sold in reels of 250 units.

Specifications

  • Supply Voltage Range: 8V to 52V
  • Output Current: Up to 2.8A per bridge
  • Maximum PWM Frequency: 100 kHz
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The L6208PD has a total of 36 pins, which are divided into two groups for each full-bridge driver. Each group consists of the following pins:

  1. VCP: Charge pump bootstrap supply voltage
  2. CP1: Charge pump bootstrap capacitor connection
  3. CP2: Charge pump bootstrap capacitor connection
  4. GND: Ground
  5. VCC: Logic supply voltage
  6. IN1: Input pin for Bridge A
  7. IN2: Input pin for Bridge A
  8. EN1: Enable input for Bridge A
  9. OUT1: Output pin for Bridge A
  10. OUT2: Output pin for Bridge A
  11. VS: Sense resistor connection for Bridge A
  12. REF: Reference voltage for sense amplifier
  13. VREF: External reference voltage
  14. VREF/2: Half of the external reference voltage
  15. OUT2: Output pin for Bridge B
  16. OUT1: Output pin for Bridge B
  17. EN2: Enable input for Bridge B
  18. IN2: Input pin for Bridge B
  19. IN1: Input pin for Bridge B
  20. GND: Ground

Functional Features

  • Dual full-bridge configuration allows independent control of two motors or bidirectional control of a single motor.
  • Integrated current sensing and protection features ensure safe operation and prevent damage to the motor and driver.
  • High voltage capability enables driving of bipolar stepper motors in various applications.
  • Low quiescent current minimizes power consumption during idle periods.
  • Thermal shutdown protects the IC from overheating.

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of motors with higher voltage requirements. - Current sensing and protection features enhance motor control and prevent damage. - Dual full-bridge configuration provides flexibility in motor control applications. - Low quiescent current reduces power consumption. - Thermal shutdown protects the IC from overheating, ensuring its longevity.

Disadvantages: - Limited maximum PWM frequency may not be suitable for applications requiring high-speed motor control. - PowerSO-36 package may not be compatible with all PCB layouts.

Working Principles

The L6208PD operates by receiving control signals through its input pins (IN1, IN2) and enable inputs (EN1, EN2). These signals determine the direction and speed of the motor. The integrated full-bridge configuration allows bidirectional control of the motor, while the current sensing circuitry ensures accurate monitoring of the motor current. In case of overcurrent or thermal overload, the IC triggers the appropriate protection mechanisms to prevent damage.

Detailed Application Field Plans

The L6208PD is widely used in various motor control applications, including but not limited to: - Robotics - Industrial automation - CNC machines - 3D printers - Automotive systems - Medical equipment

Detailed and Complete Alternative Models

  1. L6208N: Similar to L6208PD, but available in a DIP package.
  2. L6208Q: Enhanced version with additional protection features and improved thermal performance.
  3. L6208QTR: Surface-mount version of L6208Q.

These alternative models offer similar functionality to the L6208PD and can be used as replacements depending on specific requirements and preferences.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av L6208PD i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of L6208PD in technical solutions:

  1. Q: What is L6208PD? A: L6208PD is a dual full-bridge motor driver IC designed for driving bipolar stepper motors or two DC motors.

  2. Q: What is the maximum voltage rating of L6208PD? A: The maximum voltage rating of L6208PD is 52V.

  3. Q: How much current can L6208PD handle? A: L6208PD can handle a peak current of up to 5A per bridge.

  4. Q: Can L6208PD be used with both bipolar stepper motors and DC motors? A: Yes, L6208PD can be used with both bipolar stepper motors and DC motors.

  5. Q: Does L6208PD require external components for operation? A: Yes, L6208PD requires external components such as power supply, capacitors, resistors, and diodes for proper operation.

  6. Q: What is the purpose of the built-in protection features in L6208PD? A: The built-in protection features in L6208PD include thermal shutdown, overcurrent protection, and undervoltage lockout, which help protect the IC and connected motors from damage.

  7. Q: Can L6208PD be controlled using a microcontroller? A: Yes, L6208PD can be easily controlled using a microcontroller by providing appropriate control signals to its input pins.

  8. Q: Is L6208PD suitable for high-speed applications? A: Yes, L6208PD is suitable for high-speed applications as it has a fast decay mode that allows for efficient motor control at higher speeds.

  9. Q: Can L6208PD be used in automotive applications? A: Yes, L6208PD is suitable for automotive applications as it can operate within the required temperature range and has built-in protection features.

  10. Q: Are there any application notes or reference designs available for L6208PD? A: Yes, the manufacturer of L6208PD provides application notes and reference designs that can help users understand and implement the IC in their technical solutions effectively.

Please note that these answers are general and may vary depending on specific use cases and requirements. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.