L6219R_06

Manufacturer Part NumberL6219R_06
DescriptionStepper motor driver
ManufacturerSTMICROELECTRONICS [STMicroelectronics]
L6219R_06 datasheet
 


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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.
Order codes
Part number
L6219R
L6219R013TR
(1)
E-L6219R
(1)
E-L6219R013TR
1. Lead free package (ECOPACK®) see
June 2006
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.
Package
SO-24
SO-24
SO-24
SO-24
Chapter
5.
Rev 3
L6219R
Stepper motor driver
SO-24 (20+2+2)
Packing
Tube
Tape & reel
Tube
Tape & reel
1/16
www.st.com
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L6219R_06 Summary of contents

  • Page 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 ...

  • Page 2

    Table of contents Table of contents 1 Block diagram & pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 3

    L6219R List of tables Table 1. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 4

    List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 5

    L6219R 1 Block diagram & pins description Figure 1. Block diagram Figure 2. Pin connection (Top view) Table 1. Pin description Pin # Name 1;2 OUTPUT A SENSE 3;23 RESISTOR COMPARATOR 4;22 INPUT 5;21 OUTPUT B 6;19 GROUND Description See ...

  • Page 6

    Block diagram & pins description Table 1. Pin description (continued) Pin # Name 7;18 GROUND 8;20 INPUT 0 9;17 INPUT 1 10;16 PHASE REFERENCE 11;15 VOLTAGE 12;14 RC Vss - LOGIC 13 SUPPLY Vs - LOAD 24 SUPPLY Note: ESD ...

  • Page 7

    L6219R 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Supply Voltage S I Output Current (peak Output Current (continuous Logic Supply Voltage SS V Logic Input Voltage Range IN V ...

  • Page 8

    Electrical specifications Table 4. Electrical Characteristics (continued 25° 4.5V See Figure 5. Symbol Parameter V Clamp Diode Forward Voltage F I Driver Supply Current S(on) I Driver Supply Current S(off) CONTROL LOGIC V ...

  • Page 9

    L6219R Figure 3. Windings of a bipolar stepper motor Electrical specifications 9/16 ...

  • Page 10

    Functional description 3 Functional description The circuit is intended to drive both windings of a bipolar stepper motor. The peak current control is generated through switch mode regulation.There is a choice of three different current levels with the two logic ...

  • Page 11

    L6219R 3.4 Single-pulse Generator The pulse generator is a monostable triggered on the positive going edge of the comparator output.The monostable output is high during the pulse time, toff , which is determined by the time components R The single ...

  • Page 12

    Application informations 4 Application informations Some stepper motors are not designed for contin-uous operation at maximum current. As the circuit drives a constant current through the motor, its temperature might increase exceedingly both at low and high speed operation.Also, some ...

  • Page 13

    L6219R 4.1 Electrical characteristics curves Figure 6. Max output current versus supply voltage 600 500 400 300 200 100 (V) Figure 8. Maximum output current vs. supply voltage 600 500 400 300 200 100 ...

  • Page 14

    Package informations 5 Package informations In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the ...

  • Page 15

    L6219R 6 Revision history Table 6. Document revision history Date January 2003 May 2005 22-Jun-2006 Revision 1 First Issue 2 Modified Table 6 on page 5. Changed look anf fill. 3 Changed value of the Output Current (continuous) in Changed ...

  • Page 16

    Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...