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L6219DSA Datasheet

  • L6219DSA

  • STEPPER MOTOR DRIVER FOR AUTOMOTIVE RANGE

  • 8頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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廬
L6219DSA
STEPPER MOTOR DRIVER FOR AUTOMOTIVE RANGE
ABLE TO DRIVE BOTH WINDINGS OF BIPO-
LAR STEPPER MOTOR
OUTPUT CURRENT UP TO 750mA EACH
WINDING
WIDE VOLTAGE RANGE 10V TO 46V
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
DESCRIPTION
The L6219DSA is a bipolar monolithic integrated
circuits intended to control and drive both winding
of a bipolar stepper motor or bidirectionally con-
trol two DC motors.
The L6219DSA with a few external components
form a complete control and drive circuit for LS-
TTL or microprocessor controlled stepper motor
system.
The power stage is a dual full bridge capable of
sustaining 46V and including four diodes for cur-
rent recirculation.
BLOCK DIAGRAM
SO20+2+2
ORDERING NUMBER:
L6219DSA
A cross conduction protection is provided to avoid
simultaneous cross conduction during switching
current direction.
An internal pulse-width-modulation (PWM) con-
trols the output current to 750mA with peak start-
up current up to 1A.
Wide range of current control from 750mA (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 direc-
tion.
A thermal protection circuitry disables the outputs
if the chip temperature exceeds safe operating
limits.
November 1998
1/8

L6219DSA 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

  • ±750mA

  • 10 V ~ 46 V

  • 4.75 V ~ 5.25 V

  • -40°C ~ 125°C

  • 表面貼裝

  • 24-SOIC（0.295"，7.50mm 寬）

  • 24-SO

  • 管件

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