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l298 pdf datasheet

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  • 标      签: l2

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The L297/A/D Stepper Motor Controller IC generatesfour phase drive signals for two phase bipolarand four phase unipolar step motors in microcomputer-controlled applicaTIons. The motor can bedriven in half step, normal and wawe drive modesand on-chip PWM chopper circuits permit switchmodecontrol of the current in the windings. A feature of this device is that it requires only clock,direcTIon and mode input signals. Since the phaseare generated internally the burden on the microprocessor,and theprogrammer, is greatlyreduced.Mounted in DIP20 and SO20 packages, the L297can be used with monolithic bridge drives such asthe L298N or L293E, or with discrete transistorsand darlingtons.
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