Pololu 3752 / 3753 Dual G2 High-Power Motor Driver 24v14 for Raspberry Pi

The Pololu 3752 / 3753 Dual G2 High-Power Motor Driver is a compact, dual-channel DC motor controller designed to interface seamlessly with Raspberry Pi and other single-board computers via GPIO pins. This high-performance motor driver supports continuous currents up to 14 amperes per channel at 24V, making it ideal for driving large industrial motors, robotic platforms, and autonomous vehicles that demand precise speed and direction control. The integrated H-bridge topology with advanced MOSFETs and current-limiting protection solves the critical challenge of controlling high-power loads from low-voltage microcontroller logic without external relay circuits or additional power management complexity.

Product Overview

The Pololu G2 Dual High-Power Motor Driver operates on the principle of pulse-width modulation (PWM) control combined with H-bridge switching topology. Each channel features independent direction control and PWM speed modulation, allowing simultaneous control of two motors with different speeds and directions. The driver accepts 5V logic signals from Raspberry Pi GPIO pins while delivering up to 24V at 14A per channel to connected motors. Advanced features include integrated current sensing on each channel, over-temperature shutdown protection, and undervoltage lockout to prevent damage from supply voltage fluctuations. The compact form factor and direct GPIO compatibility eliminate the need for intermediate interface boards, reducing system complexity and improving reliability in field deployments.

What distinguishes the G2 series from earlier motor driver generations is the implementation of low-impedance power MOSFETs with integrated freewheeling diodes that minimize heat dissipation and improve efficiency to over 95% at nominal loads. The driver includes status feedback pins that communicate motor current draw and thermal conditions back to the Raspberry Pi, enabling real-time monitoring and adaptive control algorithms. The exposed PCB design with clearly labeled pins facilitates rapid prototyping, while the robust construction with solder-masked traces and conformal coating ensures reliable operation in harsh industrial environments, dusty workshops, and outdoor robotic applications.

Key Specifications

Specification	Details
Product Type	Dual Channel DC Motor Driver with H-Bridge
Brand	Pololu Robotics and Electronics
Origin	Original / Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
Maximum Voltage	24V DC continuous
Continuous Current per Channel	14 amperes
Peak Current per Channel	18 amperes (5 seconds maximum)
Logic Input Voltage	5V TTL / CMOS compatible
Number of Motor Channels	2 independent channels
PWM Frequency Range	10 Hz to 40 kHz

Key Features

• Dual Independent H-Bridge Channels: Control two separate DC motors simultaneously with independent direction and speed control via separate GPIO pins, enabling differential drive systems for wheeled robots and autonomous vehicles
• High Current Capacity: 14A continuous per channel rated at 24V with 18A peak capability for 5 seconds, sufficient for large industrial motors, winches, and high-torque actuators without thermal derating
• Integrated Current Sensing: Built-in current monitoring on each channel provides real-time feedback to Raspberry Pi via analog pins, enabling current-limiting algorithms and motor stall detection for safety-critical applications
• Over-Temperature Protection: Automatic thermal shutdown at 165 degrees Celsius prevents component damage during sustained high-current operation, with status feedback pin alerting the microcontroller of thermal events
• Undervoltage Lockout: Prevents operation when supply voltage drops below safe thresholds, protecting connected motors from erratic behavior during power supply brownouts or battery depletion
• PWM Speed Control: Accepts PWM signals from 10 Hz to 40 kHz, allowing smooth speed modulation and compatibility with standard Raspberry Pi PWM libraries without additional frequency conversion
• Compact Form Factor: 2.7 x 2.1 inch PCB with direct GPIO pin headers eliminates need for external connectors or interface boards, reducing wiring complexity and improving system reliability

Applications and Use Cases

• Wheeled Robotics Platforms: Drive dual motors in differential-drive configurations for mobile robots, AGVs (Autonomous Guided Vehicles), and line-following robots where independent left-right motor control enables precise steering and obstacle avoidance algorithms
• Industrial Automation: Control conveyor belt motors, pump drives, and material handling equipment in factory automation systems where Raspberry Pi serves as the logic controller and the G2 driver provides the high-current switching interface
• Robotic Arm Actuation: Power large DC servo motors and linear actuators in multi-axis robotic arms where the dual channels drive shoulder and elbow joints simultaneously with coordinated motion control
• Autonomous Lawn Mowers and Garden Robots: Drive main propulsion motors and auxiliary implement motors (blade, lift) in outdoor robotics where 24V battery systems and high-current demands require robust motor control with thermal protection
• Electric Skateboard and E-Vehicle Projects: Control dual hub motors or central drive motors in DIY electric skateboard and small vehicle projects where the driver's current sensing enables battery management and traction control algorithms
• Laboratory Test Equipment: Operate stepper motors, servo motors, and DC motors in educational robotics kits and maker projects where students learn motor control principles through hands-on Raspberry Pi programming

How to Use

Begin by connecting your 24V power supply to the VCC and GND pins on the motor driver, ensuring polarity is correct to avoid component damage. Connect the positive and negative terminals of your first DC motor to the OUT1A and OUT1B pins, and the second motor to OUT2A and OUT2B pins. From your Raspberry Pi GPIO header, connect five control signals: IN1A and IN1B for motor 1 direction control, IN2A and IN2B for motor 2 direction control, and optionally the PWM enable pins (EN1 and EN2) to GPIO pins configured as outputs. Configure these GPIO pins as digital outputs in your Python or C code using the RPi.GPIO or gpiozero libraries. To control motor speed, apply PWM signals to the enable pins using the software PWM function with frequencies between 10 Hz and 40 kHz for smooth operation.

For direction control, set IN1A high and IN1B low to rotate motor 1 clockwise, or reverse the logic for counterclockwise rotation; the same principle applies to motor 2 using IN2A and IN2B. To stop a motor, set both direction pins low. For current monitoring, connect the CURRENT1 and CURRENT2 analog feedback pins to Raspberry Pi's MCP3008 or similar ADC converter to read motor current draw in real-time. Always include a large electrolytic capacitor (470 microfarads or larger) across the power supply terminals near the motor driver to stabilize voltage during high-current transients. Mount the driver on a small heatsink if operating continuously above 10A per channel, and ensure adequate ventilation to keep the MOSFET junction temperatures below 165 degrees Celsius to prevent thermal shutdown.

Frequently Asked Questions

Can I use the Pololu G2 driver with voltages lower than 24V?

Yes, the G2 driver is rated for continuous operation from approximately 5.5V to 24V DC. Lower voltages reduce maximum current capacity proportionally, but the driver functions correctly. For example, at 12V the continuous current rating remains 14A per channel. Always verify your motor's voltage and current specifications match your power supply and driver configuration to prevent overheating or insufficient torque.

What is the difference between the Pololu 3752 and 3753 models?

The Pololu 3752 features pin headers for breadboard compatibility and direct GPIO connection, while the 3753 includes soldered power connectors for higher-current applications requiring more robust connections. Both models use identical H-bridge electronics and current specifications. Choose the 3752 for prototyping and educational projects, and the 3753 for permanent installations with high vibration or frequent power cycling.

How do I detect motor stall conditions using the current sensing pins?

The CURRENT1 and CURRENT2 pins output an analog voltage proportional to motor current. By reading these pins via an ADC converter and monitoring the voltage level in your control code, you can detect sudden current spikes that indicate motor stall. Set a threshold current value in your software; if actual current exceeds this threshold for more than 100 milliseconds, trigger a stall detection routine that stops the motor or executes a recovery algorithm. This enables safe autonomous operation without mechanical jam-up.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Pololu 3752 / 3753 Dual G2 High-Power Motor Driver 24v14 for Raspberry Pi Online in India

Purchase the Pololu 3752 / 3753 Dual G2 High-Power Motor Driver 24v14 for Raspberry Pi online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 3752 / 3753