SL-DCM-42 Brushed DC Motor Driver, 7–43 V, 30 A

The SL-DCM-42 is a compact, high-power brushed DC motor driver from the Pico_A family, built for industrial, automotive and robotic systems where mounting space is tight and the motor needs high current. From a single 7–43 V DC supply it delivers 30 A continuously, and much higher currents during start-up and short load peaks, at 94.5 % efficiency.

One board drives a single motor in both directions, or two motors in one direction each. A four-way DIP switch selects the output configuration, the control input and soft or hard starting and stopping, so the same driver can be set up for whatever a particular machine needs. The motor is commanded by a switch and potentiometer, a switch and an analog control voltage, or a joystick, and a 3.3 V / 100 mA auxiliary output powers the controls. The driver is built with AEC-Q100 and AEC-Q101 qualified components.

Key specifications

Features

• 7 V to 43 V DC supply, 450 W rated power
• 30 A continuous; 50 A, 80 A and 100 A short-term peaks
• One bidirectional or two unidirectional channels
• Switch with potentiometer, analog voltage or joystick control
• DIP-selectable soft or hard start and stop
• 94.5 % efficiency, 18 kHz PWM
• Short-circuit, reverse-polarity and over/undervoltage protection
• 3.3 V / 100 mA auxiliary output for potentiometers and joysticks
• Four status LEDs: supply, 3.3 V, reset and fault
• AEC-Q100 / AEC-Q101 qualified components

Applications

• Seat, door, mirror and sunroof actuators
• HVAC, flap and valve actuators
• Linear actuators and positioning mechanisms
• Industrial automation equipment
• Robotic arms and grippers
• AGV, AMR and UGV platforms

Connections

Terminal T1 carries the supply (+Vm, GND) and the motor outputs M1 and M2. T2 provides the 3.3 V auxiliary output. T3 takes the two analog command inputs P/J1 and P/J2 and the two 3.3 V switch inputs In1 and In2. Four corner holes take M2.5 screws and a centre hole between the power transistors takes M3. Wiring diagrams for the bidirectional, dual unidirectional and joystick modes are shown in the product images and in the datasheet.

Preliminary datasheet. Figures marked TBD have not yet been characterised and are subject to change. Contact support@stripline.org for the latest datasheet, quotations and technical support.