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L6219R Datasheet

  • L6219R

  • STEPPER MOTOR DRIVER

  • 10頁

  • ETC

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L6219R
STEPPER MOTOR DRIVER
s
s
s
s
s
s
s
s
s
ABLE TO DRIVE BOTH WINDINGS OF
BIPOLAR STEPPER MOTOR
OUTPUT CURRENT UP TO 500mA EACH
WINDING
WIDE VOLTAGE RANGE 4.5V TO 10V
HALF-STEP, FULL-STEP AND MICROSTEPP-
ING MODE
BUILT-IN PROTECTION DIODES
INTERNAL PWM CURRENT CONTROL
LOW OUTPUT SATURATION VOLTAGE
DESIGNED FOR UNSTABILIZED MOTOR
SUPPLY VOLTAGE
INTERNAL THERMAL SHUTDOWN
SO24(2+2)
ORDERING NUMBER: L6219R
DESCRIPTION
The L6219R is a bipolar monolithic integrated circuits
intended to control and drive both winding of a bipolar
stepper motor or bidirectionally control two DC mo-
tors.The L6219R with a few external components
form a complete control and drive circuit for LS-TTL
or microprocessor controlled stepper motor sys-
tem.The power stage is a dual full bridge capable of
BLOCK DIAGRAM
sustaining 10V and including four diodes for current
recirculation.A cross conduction protection is provid-
ed to avoid simultaneous cross conduction during
switching current direction.An internal pulse-width-
modulation (PWM) controls the output current to
500mA with peak start-up current up to 1A.
Wide range of current control from 500mA (each
bridge) is permitted by means of two logic inputs and
an external voltage reference. A phase input to each
bridge determines the load current direction.A ther-
mal protection circuitry disables the outputs if the
chip temperature exceeds safe operating limits.
January 2003
1/10

L6219R 產品屬性

  • 32

  • 集成電路 (IC)

  • PMIC - 電機和風扇控制器，驅動器

  • -

  • 直流電機驅動器，步進電機驅動器

  • -

  • 2/1

  • ±500mA

  • 4.5 V ~ 10 V

  • 4.75 V ~ 5.25 V

  • -20°C ~ 85°C

  • 表面貼裝

  • 24-SOIC（0.295"，7.50mm 寬）

  • 24-SO

  • 管件

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