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L6219DS Datasheet(PDF) 1 Page - STMicroelectronics |
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L6219DS Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 9 page  L6219 STEPPER MOTOR DRIVER ABLE TO DRIVE BOTH WINDINGS OF BIPO- LAR STEPPER MOTOR OUTPUT CURRENT UP TO 750mA EACH WINDING WIDE VOLTAGE RANGE 10V TO 46V HALF-STEP, FULL-STEP AND MICROSTEPP- ING MODE BUILT-IN PROTECTION DIODES INTERNAL PWM CURRENT CONTROL LOW OUTPUT SATURATION VOLTAGE DESIGNED FOR UNSTABILIZED MOTOR SUPPLY VOLTAGE INTERNAL THERMAL SHUTDOWN DESCRIPTION The L6219 is a bipolar monolithic integrated cir- cuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors. The L6219 with a few external components form a complete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system. The power stage is a dual full bridge capable of sustaining 46V and including four diodes for cur- rent recirculation. A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction. An internal pulse-width-modulation (PWM) con- trols the output current to 750mA with peak start- up current up to 1A. Wide range of current control from 750mA (each bridge) is permitted by means of two logic inputs and an external voltage reference. A phase input to each bridge determines the load current direction. A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits. October 2001 ® Powerdip 20+2+2 SO20+2+2 ORDERING NUMBERS: L6219 L6219DS BLOCK DIAGRAM 1/9 |
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