TEA3718S

步进电机驱动器 STEPPER MOTOR DRIVER

DESCRIPTION

The TEA3718 and are bipolar monolithic integrated circuits intended to control and drive the current in one winding of a bipolar stepper motor. The circuits consist of an LS-TTL compatible logic input, a current sensor, a monostable and an output stage with built-in protection diodes. Two TEA3718 or TEA3718S and a few external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.

■ HALF-STEP AND FULL-STEP MODE

■ BIPOLAR DRIVE OF STEPPER MOTOR FOR MAXIMUM MOTOR PERFORMANCE

■ BUILT-IN PROTECTION DIODES

■ WIDE RANGE OF CURRENT CONTROL 5 TO 1500 mA

■ WIDE VOLTAGE RANGE 10 TO 50 V

■ DESIGNED FOR UNSTABILIZED MOTOR SUPPLY VOLTAGE

■ CURRENT LEVELS CAN BE SELECTED IN STEPS OR VARIED CONTINUOUSLY

■ THERMAL OVERLOAD PROTECTION

■ ALARM OUTPUT OR PRE-ALARM OUTPUT see internal table