L6223

L6223 DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER HIGH EFFICIENCY UNIPOLAR STEPPER MOTOR DRIVER HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER SUPPLY VOLTAGE UP TO 46V PHASE CURRENT UP TO 1A UP TO 2A/PHASE IN DUAL CONFIGURATION PARALLEL CMOS µP INTERFACE FOR FULL/HALF STEP MOTOR ROTATION SERIAL INTERFACE FOR 6 BIT PROGRAMMING CLOSE/OPEN LOOP, 8 PWM CURRENT LEVELS DUAL PWM FREQUENCY SELECTION INPUT BIDIRECTIONALLY PROTECTED THERMAL SHUTDOWN DESCRIPTION The L6223 is a programmable integrated system for driving a unipolar stepper motor. It is realized in Multipower BCD technology. The DMOS output BLOCK DIAGRAM MULTIPOWER BCD TECHNOLOGY POWERDIP 16+2+2 ORDERING NUMBER : L6223 stage, realized by a single upper DMOS switch and four lower DMOS, can deliver up to 1A/phase with motor supply voltages up to 46V. All inputs are CMOS and microprocessor compatible. An internal 6-bit shift register allows the device to be programmed to select different duty cycles in open loop mode and di...