Stepper Motor Controller

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.

Key Features

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

Circuit Diagram

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Design

Technical Documentation

Product Specifications
Description Version Size
DS0050 DS0050: Stepper motor controllers 6.3 167 KB
Application Notes
Description Version Size
AN235 AN235: Stepper motor driving 2.2 1 MB

Presentations & Training Material

Presentations
Description Version Size
An introduction to electric motors 1.0 2 MB

Publications and Collaterals

Brochures
Description Version Size
Motor Control Reference Guide 15.10 2 MB
Products and Solutions for Factory Automation and Control 1.0 3 MB
Support & Community



Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L297/1 Active 1000 3.698 PDIP 20 Tube -40 150 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
L297D013TR Active 1000 3.277 SO-20 Tape And Reel -40 150 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
L297D Active 1000 3.277 SO-20 Tube -40 150 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L297/1 ActivePDIP 20IndustrialEcopack1
L297D013TR ActiveSO-20IndustrialEcopack1 (*) 0 0
L297D ActiveSO-20IndustrialEcopack1 (*) 0 0
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(**) 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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