Stepper motor controllers - STMicroelectronics
L297STEPPER motor CONTROLLERSNORMAL/WAVE DRIVEHALF/FULL STEP MODESCLOCKWISE/ANTICLOCKWISE DIRECTIONSWITCHMODE LOAD CURRENT REGULA-TIONPROGRAMMABLE LOAD CURRENTFEW EXTERNAL COMPONENTSRESET INPUT & HOME OUTPUTENABLE INPUTDESCRIPTIONThe L297 Stepper motor Controller IC generatesfour phase drive signals for two phase bipolar andfour phase unipolar step motors in microcomputer-controlled applications. The motor can be driven inhalf step, normal and wawe drive modes and on-chip PWM chopper circuits permit switch-modecontrol of the current in the windings. A feature ofDecember 2001SymbolParameterValueUnitVsSupply voltage10VViInput signals7VPtotTotal power dissipation (Tamb = 70 C)1WTstg, TjStorage and junction temperature-40 to + 150 CABSOLUTE MAXIMUM RATINGSthis device is that it requires only clock, directionand mode input signals.
L298N or L293E, or with discrete transistors and darlingtons. TWO PHASE BIPOLAR STEPPER MOTOR CONTROL CIRCUIT DIP20 SO20 ORDERING NUMBERS : L297/1 (DIP20) L297D (SO20) 1/11. PIN CONNECTION (Top view) BLOCK DIAGRAM (L297/1 - L297D) 2/11 L297/1 L297D L297. N° NAME FUNCTION ...
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