Bimos Ii Unipolar Stepper-motor Translator/driver Microsystems

Combining low-power CMOS Logic with high-current and High-Voltage bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/ drivers provide complete control and drive for a four-phase unipolar stepper- motor with continuous output current ratings to 1.25 A per phase (1.5 A startup) and 35 V. The CMOS Logic section provides the sequencing Logic DIRECTION and OUTPUT ENABLE control, and a power-on reset function. Three stepper-motor drive formats, wave-drive (one-phase), two-phase, and half- step are externally selectable. The inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL or LSTTL may require the use of appropriate pull-up resistors to ensure a proper input-logic high. The wave-drive format consists of energizing one motor phase at a time in an A-B-C-D (or D-C-B-A) sequence. This excitation mode consumes the least power and assures positional accuracy regardless of any winding inbalance in the motor. Two-phase drive energizes two adjacent phases in each detent position (AB-BC-CD-DA). This sequence mode offers an improved torque-speed product, greater detent torque, and is less susceptible to motor resonance. Half-step excitation alternates between the one-phase and two-phase modes (A-AB-B-BC-C-CD-D-DA), providing an eight-step sequence. By Allegro MicroSystems, Inc.
UCN5804 's PackagesUCN5804 's pdf datasheet



UCN5804 Pinout, Pinouts
UCN5804 pinout,Pin out
This is one package pinout of UCN5804,If you need more pinouts please download UCN5804's pdf datasheet.

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