TEA3717
STEPPER MOTOR DRIVER
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HALF-STEP AND FULL-STEP MODE
BIPOLAR DRIVE OF STEPPER MOTOR FOR
MAXIMUM MOTOR PERFORMANCE
BUILT-IN PROTECTION DIODES
WIDE RANGE OF CURRENT CONTROL 5 TO
1000 mA
WIDE VOLTAGE RANGE 10 TO 45 V
DESIGNED FOR UNSTABILIZED MOTOR
SUPPLY VOLTAGE
CURRENT LEVELS CAN BE SELECTED IN
STEPS OR VARIED CONTINUOUSLY
POWERDIP 12 + 2 + 2
DESCRIPTION
The TEA3717 is a bipolar monolithic integrated cir-
cuit intended to control and drive the current in one
winding of a bipolar stepper motor. The circuit con-
sists of an LS-TTL compatible logic input, a current
sensor, a monostable and an outputstage with built-
in protection diodes. Two TEA3717 and a few exter-
nal components form a complete control and drive
unit for LS-TTL or microprocessor-controlled step-
per motor systems.
PIN CONNECTION
(top view)
ORDER CODE :
TEA3717DP
April 1993
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