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DRV8840PWP
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DRV8840PWP

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High-performance motor driver - Designed for driving brushed DC motors - Supports bidirectional control of one motor or unidirectional control of two motors - Suitable for a wide range of applications, including robotics, automation, and consumer electronics

Package: PowerPAD HTSSOP (20-pin)

Essence: The DRV8840PWP is a highly efficient motor driver IC that provides precise control over the speed and direction of brushed DC motors.

Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Operating Voltage Range: 2.5V to 10.8V
  • Continuous Output Current: Up to 3A
  • Peak Output Current: Up to 6A
  • Low RDS(on) H-Bridge MOSFETs: 0.4Ω
  • PWM Input Frequency: Up to 100kHz
  • Thermal Shutdown Protection
  • Under-Voltage Lockout (UVLO) Protection

Pin Configuration

The DRV8840PWP features a 20-pin PowerPAD HTSSOP package with the following pin configuration:

  1. VCP - Charge Pump Capacitor Connection
  2. CP1 - Charge Pump Capacitor Connection
  3. CP2 - Charge Pump Capacitor Connection
  4. GND - Ground
  5. VCP - Charge Pump Capacitor Connection
  6. VM - Motor Supply Voltage
  7. OUTB - Motor Output B
  8. OUTA - Motor Output A
  9. VREF - Reference Voltage Output
  10. VCC - Logic Supply Voltage
  11. IN2 - Input 2
  12. IN1 - Input 1
  13. ENBL - Enable Input
  14. FLT - Fault Output
  15. VCP - Charge Pump Capacitor Connection
  16. CP1 - Charge Pump Capacitor Connection
  17. CP2 - Charge Pump Capacitor Connection
  18. GND - Ground
  19. VCP - Charge Pump Capacitor Connection
  20. VM - Motor Supply Voltage

Functional Features

  • Bidirectional control of one motor or unidirectional control of two motors
  • Adjustable current limit for motor protection
  • Fault detection and reporting through the FLT pin
  • Integrated charge pump for low-voltage operation
  • Thermal shutdown protection to prevent overheating
  • Under-voltage lockout (UVLO) protection for reliable operation

Advantages and Disadvantages

Advantages: - High-performance motor driver with precise control - Supports bidirectional control of one motor or unidirectional control of two motors - Wide operating voltage range allows for versatile applications - Integrated protection features ensure safe and reliable operation

Disadvantages: - Limited to driving brushed DC motors only - Requires external components for proper operation

Working Principles

The DRV8840PWP operates by controlling the current flow through the H-bridge MOSFETs connected to the motor. By adjusting the input signals, the IC can control the speed and direction of the motor. The integrated charge pump provides the necessary voltage levels for efficient motor operation. Protection features such as thermal shutdown and under-voltage lockout ensure the safety and reliability of the system.

Detailed Application Field Plans

The DRV8840PWP is suitable for various applications, including: - Robotics: Precise motor control for robotic arms, grippers, and mobile robots. - Automation: Motor control in industrial automation systems, conveyor belts, and CNC machines. - Consumer Electronics: Control of motors in appliances, toys, and small gadgets.

Alternative Models

  • L293D
  • TB6612FNG
  • SN754410
  • DRV8833

These alternative models provide similar functionality and can be used as replacements for the DRV8840PWP in motor control applications.

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10 domande e risposte comuni relative all'applicazione di DRV8840PWP nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of DRV8840PWP in technical solutions:

  1. Q: What is DRV8840PWP? A: DRV8840PWP is a motor driver IC (integrated circuit) designed for driving brushed DC motors or bipolar stepper motors.

  2. Q: What is the maximum voltage that DRV8840PWP can handle? A: DRV8840PWP can handle a maximum voltage of up to 11V.

  3. Q: How much current can DRV8840PWP deliver to the motor? A: DRV8840PWP can deliver a continuous current of up to 2A to the motor.

  4. Q: Can DRV8840PWP be used with both brushed DC motors and bipolar stepper motors? A: Yes, DRV8840PWP can be used with both brushed DC motors and bipolar stepper motors.

  5. Q: Does DRV8840PWP require an external power supply? A: Yes, DRV8840PWP requires an external power supply to operate.

  6. Q: What is the purpose of the ENABLE pin on DRV8840PWP? A: The ENABLE pin is used to enable or disable the motor driver. When disabled, the motor will not receive any power.

  7. Q: Can DRV8840PWP control the speed and direction of the motor? A: Yes, DRV8840PWP can control both the speed and direction of the motor using PWM (Pulse Width Modulation) signals.

  8. Q: Is DRV8840PWP compatible with microcontrollers like Arduino? A: Yes, DRV8840PWP is compatible with microcontrollers like Arduino. It can be controlled using digital output pins.

  9. Q: Can DRV8840PWP handle overcurrent or overtemperature conditions? A: Yes, DRV8840PWP has built-in protection features to handle overcurrent and overtemperature conditions.

  10. Q: Are there any application examples where DRV8840PWP can be used? A: Yes, DRV8840PWP can be used in various applications such as robotics, home automation, 3D printers, and CNC machines for motor control.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.