Stepper Motor Controller 16-Pin PDIP

The MC3479 is designed to drive a two–phase stepper motor in the bipolar mode. The circuit consists of four input sections, a logic decoding/sequencing section, two driver–stages for the motor coils, and an output to indicate the Phase A(bar) drive state.

• Single Supply Operation: 7.2 to 16.5 V
• 350 mA/Coil Drive Capability
• Clamp Diodes Provided for Back-EMF Suppression
• Selectable CW(bar)/CCW and Full(bar)/Half Step Operation
• Selectable High/Low Output Impedance (Half Step Mode)
• TTL/CMOS Compatible Inputs
• Input Hysteresis: 400 mV Minimum
• Phase Logic Can Be Initialized to Phase A(bar)
• Phase A(bar) Output Drive State Indication (Open-Collector)
• Pb-Free Package is Available