Bipolar Stepper Motor Driver Max 3A Current 128 High Subdivision

This bipolar stepper motor driver is builded with THB7128 IC, the Max output current is 3.0A with 8 current options, and the microstep resolution can reach huge 128(25600 steps/rev). This low cost high subdivision stepper motor driver can cover most of Nema 11 to Nema 23 stepper motors which Rated Current below 3.0A.

Key Features

• 10-32VDC Driving voltage.
• 8 current options with Max. 3A.
• Microstep resolution from 1 to 128 with 8 options.
• H-bridge Bipolar constant current drive.
• Optically isolated signal input / output.
• Standard common anode single pulse interface.
• Off-line protection function.
• Semi-closed housing to adapt harsh working condition.
• Automatic semi-flow lock function.

Electrical properties(ambient temperature Tj = 25°C)

• Input Voltage: 10V-32VDC, Recommend DC24V
• Output Current: Peak Current 3A/phase, 8 Options available
• Driving Mode: Constant current PWM Control
• Exciting Mode: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128

Physical Specification

• Cooling Model: Natural Cooling: Condition: Avoid dust, oil mist and corrosive gas
• Humidity: <80% RH No coagulate frost, no frost
• Temperature: 0℃ － 50℃
• Vibration: 5.9m/s2 MAX
• Storage Temperature: -20℃ － 65℃
• Size: 116×76×26 mm
• Weight: 0.3Kg

Resources

• THB7128 IC Instructions.pdf