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MC33887DH

MC33887DH

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High current capability - Low voltage operation - Built-in protection features - Compact size

Package: PowerSO-20

Essence: The MC33887DH is a motor driver IC designed to control the speed and direction of DC motors.

Packaging/Quantity: The MC33887DH is available in a PowerSO-20 package. It is typically sold in reels containing 250 units.

Specifications

  • Operating Voltage Range: 5V - 28V
  • Continuous Output Current: Up to 5A
  • Peak Output Current: Up to 10A
  • Number of Outputs: 1
  • Control Interface: Parallel
  • Thermal Shutdown Protection: Yes
  • Overcurrent Protection: Yes
  • Undervoltage Lockout: Yes

Detailed Pin Configuration

The MC33887DH has a total of 20 pins. The pin configuration is as follows:

  1. VBB - Positive supply voltage
  2. GND - Ground
  3. IN1 - Input 1
  4. IN2 - Input 2
  5. PWM - Pulse Width Modulation input
  6. EN - Enable input
  7. CS - Current sense output
  8. OUT1 - Output 1
  9. OUT2 - Output 2
  10. VREF - Reference voltage
  11. VCP - Charge pump capacitor
  12. CP1 - Charge pump capacitor
  13. CP2 - Charge pump capacitor
  14. VREG - Regulator output
  15. VDD - Logic supply voltage
  16. VSS - Logic ground
  17. VCP - Charge pump voltage
  18. CP1 - Charge pump voltage
  19. CP2 - Charge pump voltage
  20. VREG - Regulator voltage

Functional Features

  • Bidirectional control of DC motors
  • Adjustable motor speed using PWM input
  • Overcurrent protection to prevent damage to the motor and driver
  • Thermal shutdown protection to prevent overheating
  • Undervoltage lockout to ensure proper operation at low voltages

Advantages and Disadvantages

Advantages: - High current capability allows driving of powerful motors - Low voltage operation enables use in a wide range of applications - Built-in protection features enhance reliability and safety - Compact size saves board space

Disadvantages: - Limited number of outputs may restrict certain motor control configurations - Control interface is parallel, which may require additional circuitry for some applications

Working Principles

The MC33887DH operates by receiving control signals through its input pins (IN1 and IN2) and PWM input. These signals determine the direction and speed of the connected DC motor. The IC amplifies and drives the motor current through its output pins (OUT1 and OUT2). Built-in protection features such as overcurrent and thermal shutdown ensure safe operation.

Detailed Application Field Plans

The MC33887DH is widely used in various applications that require precise control of DC motors. Some common application fields include:

  1. Robotics: The IC is used in robotic systems to control the movement of robot arms, wheels, and other motorized components.
  2. Automotive: It finds application in automotive systems such as power windows, seat adjustments, and HVAC actuators.
  3. Industrial Automation: The IC is utilized in industrial automation equipment for controlling conveyor belts, pumps, and other motor-driven machinery.
  4. Consumer Electronics: It is employed in consumer electronics devices like drones, camera gimbals, and home appliances for motor control.

Detailed and Complete Alternative Models

Some alternative models to the MC33887DH that offer similar functionality are:

  1. L298N - Dual H-Bridge Motor Driver
  2. DRV8833 - Dual H-Bridge Motor Driver
  3. TB6612FNG - Dual Motor Driver
  4. SN754410 - Quadruple Half-H Driver

These alternative models can be considered based on specific application requirements and design constraints.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan MC33887DH dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of MC33887DH in technical solutions:

  1. Q: What is MC33887DH? A: MC33887DH is a motor driver IC (integrated circuit) designed for controlling DC motors in various applications.

  2. Q: What voltage range does MC33887DH support? A: MC33887DH supports a wide voltage range from 5V to 40V, making it suitable for a variety of motor control applications.

  3. Q: How much current can MC33887DH handle? A: MC33887DH can handle a continuous output current of up to 5A and peak currents of up to 15A, allowing it to drive high-power motors.

  4. Q: Can MC33887DH control both brushed and brushless DC motors? A: No, MC33887DH is specifically designed for controlling brushed DC motors. It is not suitable for brushless motor control.

  5. Q: Does MC33887DH have built-in protection features? A: Yes, MC33887DH includes several built-in protection features such as overcurrent protection, thermal shutdown, and under-voltage lockout.

  6. Q: Can MC33887DH be used in automotive applications? A: Yes, MC33887DH is automotive qualified and can be used in various automotive applications that require DC motor control.

  7. Q: What is the maximum PWM frequency supported by MC33887DH? A: MC33887DH can support PWM frequencies up to 20kHz, allowing for precise motor speed control.

  8. Q: Can MC33887DH operate in both forward and reverse directions? A: Yes, MC33887DH supports bidirectional control, enabling operation in both forward and reverse directions.

  9. Q: Does MC33887DH require external components for operation? A: Yes, MC33887DH requires external components such as power supply capacitors, motor output capacitors, and current sense resistors for proper operation.

  10. Q: Is MC33887DH available in different package options? A: Yes, MC33887DH is available in various package options, including SOIC (Small Outline Integrated Circuit) and PowerSO-20 packages, providing flexibility for different PCB layouts and applications.

Please note that these answers are general and may vary depending on the specific application and requirements.