[E-Lab Digital Engineering, Inc.]

Overview
The EDE12400 stepper motor control module offers designers a compact, reliable stepper motor control system. Engineered with internal and external heatsinks and a highly thermally conductive potting compound, the need for cooling fans (known for short lifetimes) or a large heatsink plate is eliminated. An integrated chopper drive circuit safely provides the maximum motor torque for a given drive voltage, even one many times over the manufacture-specified voltage, offering tremendous torque and speed improvements over traditional stepper motor control circuits. Maximum coil current is easily set using a potentiometer or voltage divider, and can be dynamically adjusted. The highly efficient design of the EDE12400 drive circuitry combined with its unique PowerCube™ package makes it the ideal motor control solution for nearly any application.

FEATUREs
• Develops maximum possible motor torque by using dual coil-current sensing & control loop circuits
• Allows use of drive voltage beyond rated motor specification for enhanced torque & speed
• Chopper drive circuitry is current adjustable up to 2 Amps/coil using dual internal 5W sense resistors
• Motor supply voltage 0V to 46V
• Integral heatsink system and thermal potting compound eliminate need for an auxiliary heatsink or fan
• Eight internal 3A Schottky clamp diodes and large filter capacitors for enhanced noise suppression
• Two modes of current chopping provide efficient operation of both large and small stepper motors
• Internally generated voltage source for easily setting maximum coil current
• Primary drive circuit thermal overload protection
• Standard 24 pin DIP pin spacing for easy PCB placement & prototyping
• Threaded mounting coupler allows secure mount to PCB in rugged applications
• Chopping frequency generated internally; externally generated frequency may also be used