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Wednesday, January 07, 2009

2A Step Motor Driver Circuit

TWO PHASE BIPOLARSTEPPERMOTOR CONTROL CIRCUIT
This circuit drives bipolar stepper motors with winding currents
up to 2A.The diodes are fast 2A types.


L297
STEPPER MOTOR CONTROLLERS
The L297/A/D Stepper Motor Controller IC generates
four phase drive signals for two phase bipolar
and four phase unipolar step motors in microcomputer-
controlled applications. The motor can be
driven in half step, normal and wawe drive modes
and on-chip PWM chopper circuits permit switchmode
control of the current in the windings.

Feature
- NORMAL/WAWE DRIVE
- HALF/FULL STEP MODES
- CLOCKWISE/ANTICLOCKWISEDIRECTION
- SWITCHMODE LOAD CURRENT REGULATION
- PROGRAMMABLE LOAD CURRENT
- FEW EXTERNALCOMPONENTS
- RESET INPUT & HOME OUTPUT
- ENABLE INPUT

L297 Datasheet pdf

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