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.
| Parameter | Symbol | Min | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | Motor Power Supply Voltage | VM | -0.3 | 13.5 | V | | Control Logic Voltage | VCC | -0.3 | 6.0 | V | | Output Current (DC) | I_OUT | - | 1.6 | A | | Peak Output Current | I_PEAK | - | 3.2 | A | | Operating Temperature | T_opr | -20 | 85 | °C | | Storage Temperature | T_stg | -40 | 150 | °C | Mx1616 Motor Driver Datasheet
| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | Motor does not spin | STBY pin low | Pull STBY > 2V | | Motor spins only one direction | Broken input pin | Check IN1/IN2 logic levels | | Overheating at 0.5A | PWM frequency too high (>100kHz) or shorted output | Reduce frequency to 20kHz | | IC damaged at 12V | VM exceeded 13.5V (spike from motor braking) | Add a large capacitor (1000µF) near VM | The Mx1616 requires proper heat sinking
| Document Number: DS-MX1616-0124
| Pin No. | Name | Function | |---------|------|----------| | 1 | OA1 | Output A of Channel 1 | | 2 | VCC | Positive power supply (1.8–7V) | | 3 | OB1 | Output B of Channel 1 | | 4 | GND | Common ground | | 5 | OB2 | Output B of Channel 2 | | 6 | VCC | Positive power supply (connect to pin 2) | | 7 | OA2 | Output A of Channel 2 | | 8 | GND | Common ground (connect to pin 4) | | Parameter | Symbol | Min | Max