TEA3718S Integrated Circuit Board Chip STEPPER MOTOR DRIVER BIPOLAR DRIVER

TEA3718

TEA3718S

STEPPER MOTOR DRIVER

• 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

DESCRIPTION

TheTEA3718andTEA3718Sare bipolarmonolithic 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 anoutput 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.

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