DRV8843PWP

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 - Operates from a single power supply voltage ranging from 2.5V to 10.8V - Provides a maximum continuous output current of 3A per H-bridge - Offers various protection features such as overcurrent, overtemperature, and undervoltage lockout

Package: HTSSOP (Heat Sink Small Outline Package)

Essence: The DRV8843PWP is a highly efficient motor driver IC that enables precise control of brushed DC motors in various applications.

Packaging/Quantity: The DRV8843PWP is available in a reel packaging with 2500 units per reel.

Specifications

• Operating Voltage Range: 2.5V to 10.8V
• Maximum Continuous Output Current: 3A per H-bridge
• Peak Output Current: 6A per H-bridge
• Low RDS(on) Outputs: 0.4Ω (typical)
• PWM Control Frequency: Up to 250kHz
• Thermal Shutdown Protection
• Overcurrent Protection
• Undervoltage Lockout Protection
• Fault Detection and Reporting

Pin Configuration

The DRV8843PWP has a total of 24 pins. Here is the detailed pin configuration:

1. VCP - Charge Pump Capacitor Connection
2. CP1 - Charge Pump Capacitor Connection
3. CP2 - Charge Pump Capacitor Connection
4. GND - Ground
5. VREG - Internal Regulator Output
6. VM - Motor Power Supply Voltage
7. VREF - Reference Voltage Output
8. VCP - Charge Pump Capacitor Connection
9. CP1 - Charge Pump Capacitor Connection
10. CP2 - Charge Pump Capacitor Connection
11. GND - Ground
12. VREG - Internal Regulator Output
13. VM - Motor Power Supply Voltage
14. VREF - Reference Voltage Output
15. GND - Ground
16. GND - Ground
17. OUTB1 - H-Bridge 1 Output B
18. OUTA1 - H-Bridge 1 Output A
19. GND - Ground
20. GND - Ground
21. OUTB2 - H-Bridge 2 Output B
22. OUTA2 - H-Bridge 2 Output A
23. VCP - Charge Pump Capacitor Connection
24. CP1 - Charge Pump Capacitor Connection

Functional Features

• Bidirectional control of one motor or unidirectional control of two motors
• Efficient PWM current regulation for smooth motor operation
• Integrated charge pump for gate drive voltage generation
• Overcurrent protection prevents damage to the motor and driver
• Thermal shutdown protection prevents overheating
• Undervoltage lockout protection ensures reliable operation under low voltage conditions
• Fault detection and reporting for easy troubleshooting

Advantages and Disadvantages

Advantages: - High-performance motor driver with precise control capabilities - Supports bidirectional control, providing flexibility in motor applications - Offers various protection features for enhanced reliability - Compact HTSSOP package allows for space-saving designs - Wide operating voltage range enables compatibility with different power supply configurations

Disadvantages: - Limited maximum continuous output current of 3A per H-bridge - Higher cost compared to some other motor driver ICs on the market

Working Principles

The DRV8843PWP operates by receiving control signals from a microcontroller or other control circuitry. These control signals determine the direction and speed of the motor. The IC utilizes PWM (Pulse Width Modulation) to regulate the current flowing through the motor, enabling precise control over its rotation.

The integrated charge pump generates the necessary gate drive voltage for the H-bridge outputs, ensuring efficient switching of the motor phases. The various protection features, such as overcurrent and thermal shutdown, safeguard the motor and driver from potential damage.

Detailed Application Field Plans

The DRV8843PWP finds applications in a wide range of fields, including but not limited to: - Robotics - Industrial automation - Consumer electronics - Automotive systems - Medical devices

In robotics, the DRV8843PWP can be used to control the movement of robotic arms, legs, or wheels. In industrial automation, it can drive conveyor belts, pumps, or actuators. In consumer electronics, it can be employed in drones, home appliances, or gaming peripherals. In automotive systems, it can control window motors, seat adjustments, or HVAC blowers. In medical devices, it can be utilized in surgical robots, prosthetics, or infusion pumps.

Detailed and