Features

• Patented technology
• Pure-sinusoidal precise current control technology
• Extreme low motor noise
• Both driver and motor low heating
• High performance, low cost
• Supply voltage up to +50VDC, peak current to 5.6A
• Optically isolated differential input signals
• Pulse frequency up to 400 KHz
• Automatic idle-current reduction
• 15 selectable resolutions in decimal and binary
• Suitable for 4,6,8 lead motors
• DIP switch current setting with 8 different values
• Over-voltage and short-circuit protection

Introduction:
MD556 is a high performance microstepping driver using pure-sinusoidal wave current control technology, it is particularly suitable for applications desired with extremely low noise and low heating. Currently most of the microstepping drivers in the market apply pseudo-sinusoidal current control technology, which makes the output current to be a distorted sine wave, or makes much current ripple, both cause the motor higher noise and bigger vibration, furthermore cause serious motor heating, so when the motor works long time, the torque decrease, motor aging and the use life shorted. However the pure-sinusoidal precise current control technology (domestic patented technology) applied by MD556 can improve above problems very well, and the operating effect of the stepping motor is somehow inclined to that of servo motor.