... 30VDC input voltage, Max 2A adjustable phase current− 16th micro-stepping− Dual full H-bridge with PWM constant current ... - 1900 RPM (UIM24302B)− Acceleration function− Switch control run/stop, direction, enable/shutdown− Automatic current reduction / power savingDescriptionUIM24302 ... external potentiometer or, 3) an external voltage. Run/stop, direction,high/low speed range and, enable/disable can ...