1. Product industrial grade design, stable and reliable, with anti-static circuit, transient suppression protection, undervoltage protection, interface ESD and overvoltage protection, etc.;

2. Support voltage 9-36V wide range, maximum continuous load current 12A (without heat dissipation), 15A (simple heat dissipation), 20A (thick large heat sink);

3. Similar to L298 drive logic, three wires (PWM, IN1, IN2) can control speed regulation, forward and reverse rotation and brake;

4. Support full PWM, you can directly use the buttons to control the forward and reverse rotation, the effective range of PWM is 0.1%~100.0%;

5. It can provide 5V power supply for microcontrollers and other controllers, and has 5V output overcurrent protection and access signal overvoltage protection.

Control signal logic

Note: 0 is low level, 1 is high level, × is any level, and it is low level when floating.

COM is the signal ground, and 5VO is 5V output, which can provide 5V power for microcontrollers and other controllers; the PWM pin can be connected with PWM. If the button control method is used, the PWM pin should be connected with 5VO; IN1 and IN2 are the two-way motor forward and reverse , Brake (or brake) control signal.

Product parameter:

1. The power supply voltage is 6V-36V (the voltage is too low, the load current is large and the module is easy to damage, so the circuit board is marked as 9-36V). The power supply must not be reversed or exceed 37V, otherwise the module may be burned out. It is recommended to use the power supply A 20A fuse is connected in series at the input.

2. The drive does not provide heat dissipation. The rated current is 12A. For the rated current of 12A～15A, simple heat dissipation is required. For 15A～20A, thick heat dissipation is required. (Easy heat dissipation-such as placing a 1mm thermally conductive silicone pad under the module and then using a 5mm copper pillar to fix the module to the device wall)

3. The control signal interface (orange) can provide users with 5V externally, and the single-chip microcomputer does not need additional power supply, and the maximum power supply current is 0.5A.

4. Control signal high level voltage: 2.0V～5.5V, compatible with 3.3V and 5V TTL level;

Low level voltage of control signal: 0V～0.8V, 0V when floating;

When the control signal voltage is 5V, the control signal current is 50uA.

5. The effective range of PWM: 0.1%～100.0%;

PWM signal frequency range: 0~100KHz (20KHz is recommended);

The minimum effective pulse width of PWM: 200ns.

6. Working temperature -25℃-80℃.

7. Product size: 55*55*25mm (length, width and height).

8. Mounting hole diameter: 3mm.

Suitable motor parameters: (Users are requested to do simple heat dissipation or thick and large heat dissipation treatment according to the motor parameters)

1. Motor with rated voltage 36V

Mark the rated power of 300W and below or mark that the rated current is below 12A. The motor works at full capacity for a long time without heat dissipation;

Mark the rated power of 300W～370W or mark the rated current of 12A～15A motors requiring simple heat dissipation treatment;

Motors with marked rated power of 370W～500W or marked rated current of 15A～20A need to be treated with thick and large heat dissipation;

2. Motor with rated voltage 24V

Mark the rated power of 200W and below or mark the rated current of below 12A, and the motor does not need heat dissipation for a long time at full capacity;

Mark the rated power of 200W～250W or mark the rated current of 12A～15A motor need to do simple heat dissipation treatment;

Motors with rated power of 250W～330W or rated current of 15A～20A need to be treated with thick and large heat dissipation;

3. Motor with rated voltage 12V

Mark the rated power of 70W and below or mark the rated current of 12A and the motor works for a long time at full capacity without heat dissipation;

Mark the rated power 70W～90W or mark the rated current 12A～15A motor need to do simple heat dissipation treatment;

Motors with marked rated power of 90W～120W or marked rated current of 15A～20A need to be treated with thick and large heat dissipation;

(This driver does not have a heat dissipation rated current of 12A. The rated current of 12A～15A requires simple heat dissipation, and 15A～20A requires thick heat dissipation. The rated power marked on the motor generally refers to the output power, considering the work loss of the motor, so the rated current is calculated Need to consider the motor efficiency, rated current=rated power/rated voltage/efficiency).