TEF3718 Datasheet | STMicroelectronics

TEF3718 TEF3718S STEPPER MOTOR DRIVER - . . . . HALF AND FULL-STEP MODES BIPOLAR DRIVE OF STEPPER MOTOR FOR MAXIMUM MOTOR PERFORMANCE BUILT-IN PROTECTION DIODES WIDE RANGE OF CURRENT CONTROL : 5 TO 1500 m A 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 (TEF3718SP) OR PREALARM OUTPUT (TEF3718SSP) POWERDIP 12 + 2 + 2 ORDER CODE : TEF3718DP TEF3718SDP DESCRIPTION The TEF3718 and TEF3718S are bipolar monolithic integrated circuits intended to control and drive the current in one widing of a bipolar stepper motor. The circuits consists of an LS-TLL - patible logic input, a current sensor, a monostable and an output stage with built-in protection diodes. Two TEF3718 or TEF3718S and a few external ponents form a plete control and drive unit for LS-TTL or microprocessor controlled stepper motor systems. PIN CONNECTON MULTIWATT 15 ORDER CODE : TEF3718SP TEF3718SSP TEF3718S TEF3718 TEF3718S October 1991 1/8 TEF3718-TEF3718S BLOCK DIAGRAM (TEF3718) BLOCK DIAGRAM (TEF3718S) 2/8 TEF3718-TEF3718S...