Mx1616 Motor Driver Datasheet Exclusive Link

The MX1616H (often referred to simply as MX1616) is a dual-channel H-bridge brushed DC motor driver designed for low-voltage, high-current applications such as toy motors and small robotics. It is frequently marketed as a more efficient, compact alternative to the classic L298N driver, utilizing MOS technology to reduce heat and voltage drop. Technical Specifications Overview

The following parameters are sourced from the MX1616H technical documentation and manufacturer summaries. Operating Voltage ( VDDcap V sub cap D cap D end-sub ): 2V to 8.6V (some module variants support up to 10V). Continuous Output Current ( IOUTcap I sub cap O cap U cap T end-sub

): Up to 1.3A per channel (typical) or 1.5A depending on the specific module version. Peak Output Current ( IPEAKcap I sub cap P cap E cap A cap K end-sub ): 3A (for short durations). Logic Input Voltage ( VINcap V sub cap I cap N end-sub

): 1.8V to 7V, making it compatible with 3.3V and 5V microcontrollers like Arduino, ESP32, and Raspberry Pi. Standby Current: Ultra-low, typically less than 0.1µA. Internal Resistance: Approximately

, which significantly reduces power loss compared to transistor-based drivers.

Thermal Protection: Includes built-in thermal shutdown with hysteresis to prevent damage from overheating. Pin Configuration and Logic

The driver typically comes in a SOP-16 package or as a pre-soldered module. It features four control inputs and four motor outputs to manage two independent DC motors or one 4-wire stepper motor. Motor Output State Standby / Coast (High Impedance) Brake (Short circuit) Key Application Benefits

High Efficiency: Unlike the L298N, which can have a voltage drop of up to 2V, the MX1616’s MOS-based design has minimal drop, allowing almost the full battery voltage to reach the motor. Mx1616 Motor Driver Datasheet

Compact Form Factor: Often sold as a mini dual H-bridge module, it is roughly the size of a postage stamp, ideal for space-constrained hobbyist projects.

PWM Speed Control: Supports Pulse Width Modulation (PWM) on the input pins to control motor speed smoothly. Usage Notes

Power Supply: Ensure the motor power supply matches the 2V–8.6V range. Using higher voltages (like a 12V lead-acid battery) will damage the chip.

Heat Dissipation: While more efficient than older drivers, it may still require airflow or a small heatsink if running continuously at its 1.5A limit.

Common Use Cases: Frequently found in miniature RC cars, smart balance robots, and DIY educational kits.

2. Pin Configuration and Functionality

Before wiring any circuit, you must understand the pinout. The Mx1616 is commonly available on a breakout board with a 16-pin configuration (screw terminals for motor/power and header pins for logic).

Here is the standard pinout (viewed from the top, with the heat sink pad facing up): The MX1616H (often referred to simply as MX1616)

| Pin # | Name | Type | Description | | :--- | :--- | :--- | :--- | | 1 | EN | Input | Enable driver (Low = driver ON; High = all outputs disabled) | | 2 | MS1 | Input | Microstep selection bit 1 (see truth table) | | 3 | MS2 | Input | Microstep selection bit 2 | | 4 | MS3 | Input | Microstep selection bit 3 (for 1/16 step) | | 5 | RST | Input | Reset active low – resets the translator to home position | | 6 | SLP | Input | Sleep mode (Low = sleep; High = normal operation) | | 7 | STP | Input | Step clock input (each rising edge advances the motor) | | 8 | DIR | Input | Direction control (High = CW, Low = CCW) | | 9 | VDD | Power | Logic supply voltage (3.3-5V) | | 10 | GND | Ground | Logic ground (must connect to system ground) | | 11 | VM | Power | Motor power supply (8-36V) | | 12 | PGND | Ground | Power ground (for motor return path) | | 13 | 1B | Output | Motor coil B – Phase 1 | | 14 | 2B | Output | Motor coil B – Phase 2 | | 15 | 2A | Output | Motor coil A – Phase 1 | | 16 | 1A | Output | Motor coil A – Phase 2 |

Schematic notes:

  • Connect both VCC pins together and both GND pins together.
  • Place a bulk capacitor (≥100µF) close to IC to handle motor current spikes.
  • Add flyback diodes (1N5819 Schottky) if driving motors >0.5A — internal diodes are weak.
  • Logic inputs can be driven directly from 3.3V or 5V MCU pins (e.g., Arduino, ESP32, STM32).

Conclusion

The Mx1616 motor driver is a robust, cost-effective solution for small-scale robotics. By reading the datasheet carefully, you understand that while it is physically small, it is electrically powerful enough to drive most small hobby motors. Its low standby current and support for standard logic levels make it a seamless bridge between your microcontroller code and the mechanical motion of your project.

Always double-check the specific datasheet provided by your module's supplier, as clone variations of the MX1616 chip may have slight differences in peak voltage tolerance.

The MX1616 (or MX1616H) is a high-efficiency, dual-channel H-bridge motor driver IC specifically designed for low-voltage applications like battery-powered toys, smart cars, and small-scale robotics. Its compact SOP-16 package and low internal resistance make it a modern alternative to bulkier drivers like the L293D or L298N. 1. Key Technical Specifications

The MX1616 is prized for its ability to operate at voltages as low as 2V, making it ideal for devices powered by two or three AA batteries or a single-cell Li-ion battery.

MX1616 Motor Driver: A Comprehensive Review and Guide for Users

Package Type, SOP-16. Control Interface, Standard ... A type of robot movement where two motors ... mx1616 motor driver datasheet. www.aliexpress.com MX1616 1.5A Dual Motor Driver Module - Art of Circuits Connect both VCC pins together and both GND pins together

Note: If you have a specific manufacturer’s datasheet (e.g., from a Chinese vendor), refer to that for absolute values. The following is based on the industry-standard specifications.

4. Pin Configuration (SOP-16)

| Pin # | Name | Function | | :--- | :--- | :--- | | 1 | VM | Motor power supply (4.5V – 13.5V) | | 2, 9 | AO1, BO1 | Output A1 / Output B1 | | 3, 8 | AO2, BO2 | Output A2 / Output B2 | | 4 | PGND | Power ground for motors | | 5 | VCC | Logic supply (2.7V – 5.5V) | | 6 | STBY | Standby (High = Active; Low = Standby) | | 7, 15 | AIN1, BIN1 | Input 1 for Channel A / Channel B | | 10, 14 | AIN2, BIN2 | Input 2 for Channel A / Channel B | | 11 | PWMA | PWM input for Channel A (speed control) | | 12 | GND | Logic ground | | 13 | PWMB | PWM input for Channel B (speed control) | | 16 | VREF | Reference voltage (usually tied to VCC) |

1. Product Overview

The MX1616 is a low-cost, dual-channel H-bridge motor driver IC designed for driving two DC motors or one bipolar stepper motor. It is commonly found in toy motors, small robots, and smart home actuators. Its key feature is the low saturation voltage drop, making it more efficient than older drivers like the L9110S.

Best for: 1.8V–7V battery-operated devices.

Wiring Steps

  1. Power connections:

    • Connect Arduino 5V to Mx1616 VDD
    • Connect Arduino GND to Mx1616 GND
    • Connect external 12V supply (+) to VM
    • Connect external 12V supply (-) to PGND
    • Place the 100µF capacitor across VM and PGND close to the driver.

  2. Logic connections:

    • Pin 7 (STP) → Arduino Digital Pin 3
    • Pin 8 (DIR) → Arduino Digital Pin 4
    • Pin 1 (EN) → Arduino Digital Pin 5
    • Microstep pins (MS1, MS2, MS3) → Arduino Digital Pins 6,7,8 (or tie directly to VDD or GND based on truth table)

  3. Motor connections:

    • Motor Coil A → 1A and 2A
    • Motor Coil B → 1B and 2B (Use a multimeter to identify coil pairs – they should have continuity.)

Recommended Operating Conditions

  • VM: 12V to 24V (most stable performance)
  • VDD: 3.3V or 5V ±5%
  • Step frequency: 0 to 50 kHz (up to 100 kHz with low microstepping)
  • Ambient temperature: -25°C to 85°C

Critical Note: The Mx1616 requires proper heat sinking. At 1.6A continuous, the driver can reach 85°C within minutes. An active cooling fan or a glued-on aluminum heat sink is strongly recommended.

Required Components

  • Mx1616 Driver module (breakout board)
  • Arduino Uno (or any microcontroller)
  • Bipolar stepper motor (e.g., NEMA 17, 1.7A per phase)
  • 12V-24V DC power supply (at least 2A)
  • Electrolytic capacitor (100µF, 35V)