L6219R_06 Datasheet, PDF (1/16 Pages) STMicroelectronics – Stepper motor driver

L6219R
Stepper motor driver
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
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 motors.The L6219R 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 10V and
including four diodes for current recirculation.
SO-24 (20+2+2)
A cross conduction protection is provided 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 thermal
protection circuitry disables the outputs if the chip
temperature exceeds safe operating limits.
Order codes
Part number
L6219R
L6219R013TR
E-L6219R⁽¹⁾
E-L6219R013TR ⁽¹⁾
1. Lead free package (ECOPACK®) see Chapter 5.
Package
SO-24
SO-24
SO-24
SO-24
Packing
Tube
Tape & reel
Tube
Tape & reel
June 2006
Rev 3
1/16
www.st.com
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