Mx1616 Motor Driver Datasheet Page

Mx1616 Motor Driver Datasheet

Overview

The Mx1616 is a high-performance, dual-channel motor driver designed for controlling two DC motors or one stepper motor. It is a compact, efficient, and reliable solution for a wide range of motor control applications.

Features

• Dual-channel motor driver: Control two DC motors or one stepper motor with a single device
• High efficiency: Low power consumption and heat dissipation
• High current output: Up to 1.6A per channel
• Wide input voltage range: 2.5V to 10V
• Overcurrent protection: Automatic shutdown in case of overcurrent
• Undervoltage lockout: Prevents motor operation at low input voltages
• Compact package: Small footprint and low profile

Pin Description

| Pin Number | Pin Name | Description | | --- | --- | --- | | 1 | VCC | Input voltage supply | | 2 | GND | Ground | | 3 | IN1 | Channel 1 input | | 4 | IN2 | Channel 1 input | | 5 | IN3 | Channel 2 input | | 6 | IN4 | Channel 2 input | | 7 | OUT1 | Channel 1 output | | 8 | OUT2 | Channel 1 output | | 9 | OUT3 | Channel 2 output | | 10 | OUT4 | Channel 2 output | | 11 | FB1 | Channel 1 feedback | | 12 | FB2 | Channel 2 feedback |

Electrical Characteristics

• Input voltage range: 2.5V to 10V
• Output current range: 0 to 1.6A per channel
• Quiescent current: 1mA (typical)
• Operating temperature: -20°C to 85°C

Motor Control Modes

The Mx1616 supports two motor control modes: Mx1616 Motor Driver Datasheet

• DC motor mode: Control two DC motors with independent speed and direction control
• Stepper motor mode: Control one stepper motor with step, direction, and enable signals

Protection Features

• Overcurrent protection: Automatic shutdown in case of overcurrent
• Undervoltage lockout: Prevents motor operation at low input voltages
• Thermal shutdown: Automatic shutdown in case of excessive temperature

Application Examples

• Robotics: Control motors for robotic arms, grippers, and locomotion
• Industrial automation: Control motors for conveyor belts, pumps, and valves
• Consumer electronics: Control motors for toys, games, and appliances

Package and Dimensions

The Mx1616 is available in a compact 12-pin QFN package with a small footprint and low profile. Mx1616 Motor Driver Datasheet Overview The Mx1616 is

• Package size: 3mm x 3mm x 0.9mm
• Pin pitch: 0.5mm

Conclusion

The Mx1616 motor driver is a versatile and efficient solution for a wide range of motor control applications. Its compact package, high current output, and protection features make it an ideal choice for robotics, industrial automation, and consumer electronics.

2. Output Current

• Continuous Current: Up to 1.5A per channel (with proper cooling/airflow).
• Peak Current: Up to 2A to 2.5A (instantaneous).
• Note: While the chip can handle 1.5A, the tiny PCB traces on some Mx1616 modules may heat up quickly. It is best practice to keep loads under 1A continuous for prolonged use without a heatsink.

Problem B: Driver overheats and shuts down

• Cause: Current limit set too high or no heat sink.
• Fix: Reduce VREF or add forced airflow. Check motor winding resistance (should be > 2Ω for 1.6A drive).

7. Common Problems & Solutions

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Motor jerks, IC hot | Exceeding current limit | Reduce PWM frequency to <20kHz, add heatsink | | No movement, IC cool | Missing ground connection | Check GND pin continuity | | One motor always on | Floating input pin | Add 10k pull-down resistors on IN1/IN2 | | IC resets randomly | Power supply ripple | Increase bulk capacitance to 470µF |

13. Ordering Information

| Orderable Device | Package | Packing | Operating Temp | |------------------|---------|---------|----------------| | MX1616S | SOP-8 | Tube (100pcs) | -20°C to +85°C | | MX1616STR | SOP-8 | Tape & Reel (2500pcs) | -20°C to +85°C | | MX1616E | ESOP-8 | Tube (100pcs) | -20°C to +105°C | | MX1616DFN | DFN-10 | Reel (3000pcs) | -40°C to +105°C | Dual-channel motor driver : Control two DC motors