DRV8840PWPR

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High-performance motor driver - Designed for driving brushed DC motors - Supports a wide range of motor voltages and currents - Provides precise control over motor speed and direction

Package: PowerPAD HTSSOP

Essence: The DRV8840PWPR is a highly efficient motor driver IC that enables precise control over the speed and direction of brushed DC motors. It is widely used in various applications where accurate motor control is required.

Packaging/Quantity: The DRV8840PWPR is available in a PowerPAD HTSSOP package. It is typically sold in reels containing 2500 units per reel.

Specifications

• Operating Voltage Range: 2.5V to 10.8V
• Continuous Output Current: Up to 2A
• Peak Output Current: Up to 3.2A
• Number of Pins: 24
• Thermal Shutdown Protection: Yes
• Overcurrent Protection: Yes
• Under Voltage Lockout: Yes

Pin Configuration

The DRV8840PWPR has a total of 24 pins, each serving a specific function. Here is a detailed pin configuration:

1. VREF - Reference voltage input
2. VM - Motor supply voltage
3. GND - Ground
4. IN1 - Input 1 for motor control
5. IN2 - Input 2 for motor control
6. ENBL - Enable pin for motor driver
7. VCP - Charge pump capacitor connection
8. CP1 - Charge pump capacitor connection
9. CP2 - Charge pump capacitor connection
10. OUT1 - Output 1 for motor control
11. OUT2 - Output 2 for motor control
12. VCP - Charge pump capacitor connection
13. CP1 - Charge pump capacitor connection
14. CP2 - Charge pump capacitor connection
15. OUT1 - Output 1 for motor control
16. OUT2 - Output 2 for motor control
17. VCP - Charge pump capacitor connection
18. CP1 - Charge pump capacitor connection
19. CP2 - Charge pump capacitor connection
20. OUT1 - Output 1 for motor control
21. OUT2 - Output 2 for motor control
22. VCP - Charge pump capacitor connection
23. CP1 - Charge pump capacitor connection
24. CP2 - Charge pump capacitor connection

Functional Features

• Dual H-bridge motor driver
• PWM speed control
• Direction control
• Overcurrent protection
• Thermal shutdown protection
• Under voltage lockout

Advantages and Disadvantages

Advantages: - High-performance motor control - Wide operating voltage range - Precise speed and direction control - Built-in protection features

Disadvantages: - Limited to brushed DC motor applications - Higher cost compared to basic motor drivers

Working Principles

The DRV8840PWPR operates on the principle of pulse-width modulation (PWM) to control the speed of a brushed DC motor. By varying the duty cycle of the PWM signal, the average voltage applied to the motor is adjusted, resulting in different speeds. The direction of rotation is controlled by the input signals IN1 and IN2.

Detailed Application Field Plans

The DRV8840PWPR finds extensive use in various applications that require precise control over brushed DC motors. Some of the common application fields include:

1. Robotics: The motor driver is used in robotic systems to control the movement of robot arms, wheels, and other motorized components.
2. Automotive: It is employed in automotive applications such as power windows, seat adjustments, and windshield wipers.
3. Industrial Automation: The DRV8840PWPR is utilized in industrial automation systems for controlling conveyor belts, pumps, and other motor-driven equipment.
4. Consumer Electronics: It is used in consumer electronics devices like printers, scanners, and home appliances that require accurate motor control.

Detailed and Complete Alternative Models

1. L293D - Dual H-bridge motor driver IC
2. TB6612FNG - Dual motor driver IC with built-in protection features
3. SN754410 - Quadruple half-H driver IC for bidirectional motor control
4. A4988 - Stepper motor driver IC with microstepping capability
5. DRV8833 - Dual H-bridge motor driver IC with low voltage operation

These alternative models offer similar functionality to the DRV8840PWPR and can be considered as alternatives based on specific application requirements.

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