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UL
®
LSI/CSI
LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747
SYNC V SS HOME PHA INH1 PHB PHC INH2 PHD ENABLE RC NC
LS8397
(631) 271-0400 FAX (631) 271-0405
April 2009
A3800
STEPPER MOTOR CONTROLLER
FEATURES: • Controls Bipolar and Unipolar Motors • L297 operation with added functions: • Selectable torque ripple compensated phase drive • Selectable automated switching between stepping and holding torques • Supply current < 400uA • Half and full step modes • Normal/wave drive • Direction control • Reset input • Step control input • Enable input • PWM chopper circuit for current control • Two over current sensor comparators with external references input • All inputs and outputs TTL/CMOS compatible (TTL for 5V operation) • 4.75V to 7V Operation (VDD – VSS).