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DRV8842PWPR
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DRV8842PWPR

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High-performance motor driver IC - Designed for driving brushed DC motors - Provides bidirectional control of one DC motor or two DC motors in a single direction - Suitable for various applications requiring precise motor control

Package: PowerPAD HTSSOP (20-pin)

Essence: The DRV8842PWPR is a highly efficient motor driver IC that offers advanced features and precise control for driving brushed DC motors.

Packaging/Quantity: The DRV8842PWPR is available in a PowerPAD HTSSOP package, with a quantity of 250 units per reel.

Specifications

  • Operating Voltage Range: 6V to 36V
  • Output Current: Up to 5A continuous (per channel)
  • Peak Output Current: Up to 8A (per channel)
  • Low RDS(on) H-Bridge MOSFETs: 0.4Ω (typical)
  • PWM Control Frequency: Up to 100kHz
  • Thermal Shutdown Protection
  • Overcurrent Protection
  • Undervoltage Lockout

Pin Configuration

The DRV8842PWPR has 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. VREF - Reference Voltage Output
  6. VDD - Logic Supply Voltage
  7. IN1 - Input 1
  8. IN2 - Input 2
  9. ENBL - Enable Input
  10. NC - No Connect
  11. OUT1 - Output 1
  12. OUT2 - Output 2
  13. VCP - Charge Pump Capacitor Connection
  14. CP1 - Charge Pump Capacitor Connection
  15. CP2 - Charge Pump Capacitor Connection
  16. GND - Ground
  17. VREF - Reference Voltage Output
  18. VDD - Logic Supply Voltage
  19. IN1 - Input 1
  20. IN2 - Input 2

Functional Features

  • Bidirectional control of one DC motor or two DC motors in a single direction
  • High-efficiency H-Bridge MOSFETs for low power dissipation
  • Adjustable current limit and decay mode for precise motor control
  • Fault detection and protection features for enhanced reliability
  • Integrated charge pump for higher voltage operation

Advantages and Disadvantages

Advantages: - High-performance motor driver with advanced features - Precise control over motor speed and direction - Efficient power management for reduced power dissipation - Comprehensive fault detection and protection mechanisms

Disadvantages: - Limited to driving brushed DC motors only - Requires external components for proper operation - Relatively high cost compared to basic motor drivers

Working Principles

The DRV8842PWPR operates by utilizing an H-Bridge configuration to control the direction and speed of a brushed DC motor. It uses high-efficiency MOSFETs as switches to drive the motor in both forward and reverse directions. The integrated charge pump allows the driver to operate at higher voltages, providing flexibility in various applications.

The motor driver receives control signals from external sources, such as microcontrollers or other digital devices, to determine the desired motor speed and direction. By adjusting the input signals and configuring the current limit and decay mode, precise control over the motor's behavior can be achieved.

Detailed Application Field Plans

The DRV8842PWPR is suitable for a wide range of applications that require precise control over brushed DC motors. Some potential application fields include:

  1. Robotics: The motor driver can be used in robotic systems to control the movement of robot arms, grippers, or mobile platforms.

  2. Industrial Automation: It can be employed in various industrial automation applications, such as conveyor belts, pumps, or actuators.

  3. Automotive: The driver can be utilized in automotive systems for controlling window regulators, seat adjustments, or HVAC blowers.

  4. Home Appliances: It can be integrated into home appliances like washing machines, dishwashers, or vacuum cleaners to control motor-driven components.

Detailed and Complete Alternative Models

  1. DRV8841PWPR: Similar to DRV8842PWPR but with a lower output current rating of up to 3A continuous (per channel).

  2. DRV8843PWPR: Similar to DRV8842PWPR but with an extended operating voltage range of 6V to 45V.

  3. DRV8844PWPR: Similar to DRV8842PWPR but with additional fault detection and protection features for enhanced reliability.

  4. DRV8845PWPR: Similar to DRV8842PWPR but with a higher peak output current rating of up

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan DRV8842PWPR dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of DRV8842PWPR in technical solutions:

  1. Q: What is DRV8842PWPR? A: DRV8842PWPR 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 DRV8842PWPR can handle? A: DRV8842PWPR can handle a maximum voltage of up to 45V.

  3. Q: How much current can DRV8842PWPR deliver to the motor? A: DRV8842PWPR can deliver a maximum continuous current of 2A per H-bridge channel.

  4. Q: Can DRV8842PWPR drive both brushed DC motors and bipolar stepper motors? A: Yes, DRV8842PWPR can drive both brushed DC motors and bipolar stepper motors.

  5. Q: Does DRV8842PWPR support microstepping for stepper motors? A: No, DRV8842PWPR does not support microstepping. It operates in full-step mode only.

  6. Q: Is DRV8842PWPR compatible with 3.3V logic levels? A: Yes, DRV8842PWPR is compatible with both 3.3V and 5V logic levels.

  7. Q: Can DRV8842PWPR handle overcurrent protection? A: Yes, DRV8842PWPR has built-in overcurrent protection to prevent damage to the motor and the driver itself.

  8. Q: What is the thermal shutdown temperature of DRV8842PWPR? A: The thermal shutdown temperature of DRV8842PWPR is typically around 165°C.

  9. Q: Does DRV8842PWPR require external diodes for motor braking? A: No, DRV8842PWPR has built-in diodes for motor braking, so no external diodes are required.

  10. Q: Can DRV8842PWPR be controlled using PWM signals? A: Yes, DRV8842PWPR can be controlled using PWM (Pulse Width Modulation) signals to vary the motor speed and direction.

Please note that these answers are general and may vary depending on the specific application and implementation of DRV8842PWPR in a technical solution.