Product Summary

The MD556 is a high performance microstepping driver using pure-sinusoidal current control technology. It is particularly suitable for the applications desired with extremely low noise and low heating, compared with microstepping drivers which apply pseudo-sinusoidal current control technology. Because pseudo-sinusoidal current control technology may make the output current to be a distorted sine wave or generates larger current ripple, and both of them may cause the motor working in a higher noise, bigger vibration and higher temperature condition.

Parametrics

MD556 absolute maximum ratings: (1)Output Current: 1.4 (1.0A RMS) - 5.6 (4.0A RMS) A; (2)Supply voltage: 20 36 50 VDC; (3)Logic signal current: 7 10 16 mA; (4)Pulse input frequency: 0 - 400 KHz; (5)Isolation resistance: 500 MΩ.

Features

MD556 features: (1)Pure-sinusoidal precise current control technology; (2)Extremely low motor noise; (3)Both driver and motor are low heating; (4)High performance, low cost; (5)Supply voltage up to +50VDC; (6)peak current up to 5.6A (4.0A RMS); (7)Optically isolated differential inputs; (8)Pulse frequency up to 400 KHz; (9)Automatic idle-current reduction; (10)15 selectable resolutions in decimal and binary; (11)Suitable for 2-phase and 4-phase motors; (12)DIP switch current setting with 8 different values; (13)Over-voltage and short-circuit protection; (14)Small size 118×75.5×33mm.

Diagrams

MD556 block diagram