TEA3718S Datasheet PDF - ST Microelectronics

DESCRIPTION

●The TEA3718 and TEA3718S 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)