7A Dual DC Motor Driver

The compact DFRobot motor driver controls two DC motors with 7 to 24 V and 7 A continuous current each, briefly up to 50 A. All control inputs are isolated by optocouplers, so interference from the motors does not feed back to the microcontroller. Undervoltage lockout (UVLO) and ESD protection on all connections protect the system.

Recommended Accessories:

• 12V 251RPM 18Kg*cm DC Gear Motor with Encoder
• Dupont Cable M-F 20cm 20 Pieces

Features:

• Two channels, each with two direction inputs (IN1/IN2, IN3/IN4) and one PWM input (ENA, ENB)
• IN1 HIGH and IN2 LOW: forward; IN1 LOW and IN2 HIGH: reverse; both LOW: brake; both HIGH: outputs free
• Before every change of direction brake first (IN1 and IN2 LOW), according to DFRobot for more than 0.1 s, especially at full speed
• Control inputs isolated by optocouplers, for 3.3 V and 5 V logic; connect the +5V pin to the voltage of the microcontroller (3.3 V or 5 V)
• Undervoltage lockout (UVLO) and ESD protection on all connections
• Pluggable terminals, wires with male or female ends fit
• DFRobot recommends a 20 A fuse between supply and driver
• The back has wide bare traces: do not mount on conductive surfaces, insulate if necessary
• 4 mounting holes for M3

Application Examples:

• Robot vehicles with two strong gear motors
• Drives with 12 V or 24 V, such as conveyor belts or pumps
• Projects with little space for the driver

Documentation:

• Wiki DFRobot DRI0041 with Arduino example code

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DRI0041
• Channels: 2
• Supply voltage: 7 V to 24 V DC, limits 6.5 V to 27 V
• Continuous current: 7 A per channel
• Peak current: 50 A for about 100 ms (temperature dependent)
• Control level: HIGH 3.0 V to 6.5 V, LOW 0 V to 0.8 V
• Control current: 3 mA to 11 mA per input
• Speed: PWM, minimum valid pulse width 5 µs
• Power terminals: plus (labelled 9 - 24V), PGND, OUT1 to OUT4
• Control pins: ENA, IN1, IN2, ENB, IN3, IN4, +5V (reference 3.3 V or 5 V)
• Operating temperature: -25 °C to 85 °C
• Mounting holes: M3
• Dimensions: 55 × 55 × 20 mm
• Weight: 32 g

Scope of Delivery:

• 1× 7A Dual DC Motor Driver