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1) 2 phases, 2) Current:0.2A-6.0A;, 3) Voltage:AC40-90V;, 4) 200 microstep, 5) For 86-110mm stepping motor - details see: https://www.machineto.com/2-phase-stepping-motor-driver-yka2609ma-10234763

• High performance, low price;
• Provides 16 kinds equal angle constant torque microstep selection.
• Special circuit design,reduce noise, enhance steadiness.
• The upmost pulse response frequence amounts to 200Kpps;
• Once the pulse stops for 100ms,the phase current will automatically cut by half.
• Bipolar constant current chopper control;
• Photocoupler isolated input/output;
• Adjustable drive current range from 0.2A/phase~6.0A/phase;
• Single power input, voltage range from AC40-90V;
• Overheat protection&Overcurrent, under voltage protection
• Dimension:68x178x118.5mm,Net Weight:1.0kg