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E-L6219R View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
E-L6219R STEPPER MOTOR DRIVER ST-Microelectronics
STMicroelectronics ST-Microelectronics
E-L6219R Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
L6219R
STEPPER MOTOR DRIVER
1 Features
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
2 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
sustaining 10V and including four diodes for current
recirculation.A cross conduction protection is provid-
Figure 2. Block Diagram
Figure 1. Package
SO24 (2+2)
Table 1. Order Codes
Ecopack(1) Part Number
Package
E-
L6219R
SO24
(1) Lead free package.
To order these kinds of products, add the “E-” prefix before the
respective Part Numbers (eg. E-XXXXX).
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.
May 2005
Rev. 2
1/11
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