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L297

Stepper Motor Controller
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The L297 Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputer-controlled applications. The motor can be driven in half step, normal and wawe drive modes and on-chip PWM chopper circuits permit switch-mode control of the current in the windings. A feature of this device is that it requires only clock, direction and mode input signals. Since the phase are generated internally the burden on the microprocessor, and the programmer, is greatly reduced. Mounted in DIP20 and SO20 packages, the L297 can be used with monolithic bridge drives such as the L298N or L293E, or with discrete transistors and darlingtons.

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Errata Sheet
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Datasheet

Key Features

  • NORMAL/WAVE DRIVE
  • HALF/FULL STEP MODES
  • CLOCKWISE/ANTICLOCKWISE DIRECTION
  • SWITCHMODE LOAD CURRENT REGULATION
  • PROGRAMMABLE LOAD CURRENT
  • FEW EXTERNAL COMPONENTS
  • RESET INPUT & HOME OUTPUT
  • ENABLE INPUT

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS0050: Stepper motor controllers
6.3 168 KB

Application Notes

Description Version Size
pdf
AN1495: Microstepping stepper motor drive using peak detecting current control
3.2 709 KB
pdf
AN235: Stepper motor driving
2.0 1,282 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
PCB Layout
2.1 178 KB
zip
PCB Layout
2.1 241 KB
zip
PCB Layout
1.0 243 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
L297/1ActivePDIP 20Tube-40150_-3.698Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA86901000
AVNETOrder NowAMERICA13120
Newark Element14Order NowAMERICA1080
ANGLIA LiveOrder NowEUROPE22801
ARROWOrder NowEUROPE136350
Farnell Element14Order NowEUROPE17011
DIGIKEYOrder NowWORLDWIDE6901
FUTUREOrder NowWORLDWIDE30121
MOUSEROrder NowWORLDWIDE5701
Ecopack1-
L297DActiveSO-20Tube-40150_-3.277Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA3031000
AVNETOrder NowAMERICA20380
Newark Element14Order NowAMERICA50
ANGLIA LiveOrder NowEUROPE8201
ARROWOrder NowEUROPE20950
Farnell Element14Order NowEUROPE1021
RS COMPONENTSOrder NowEUROPE3611
RUTRONIKOrder NowEUROPE12040
FUTUREOrder NowWORLDWIDE12471
MOUSEROrder NowWORLDWIDE1401
Ecopack1PDF
XML
L297D013TRActiveSO-20Tape And Reel-40150_-3.277Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA186011000
RUTRONIKOrder NowEUROPE180001000
DIGIKEYOrder NowWORLDWIDE9151
FUTUREOrder NowWORLDWIDE20001000
MOUSEROrder NowWORLDWIDE6441
Ecopack1PDF
XML

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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