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L297/1 - Stepper Motor Controller DIP-20

L297/1: ST MICROELECTRONICS View Larger Image
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Jameco Part no. 288067
Manufacturer no. L297/1
Catalog 161 , page 8
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L297/1 - 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 wave 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 is generated internally, the burden on the microprocessor and the programmer is greatly reduced. Mounted in DIP20, the L297 can be used with monolithic bridge drives such as the L298N or L293E, or with discrete transistors and darlingtons.


  • DIP-20 package
  • Normal/Wave Drive
  • Half/Full Step modes
  • Clockwise/Anticlockwise direction
  • Switch mode load current regulation
  • Programmable load current
  • Few external components
  • Reset Input & Home Output
  • Enable input

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  • Specification Value
    Maximum Operating Temperature150°C
    MountingThrough Hole
    Product Width7.1mm(Max)
    Product Height2.68mm(Max)
    Specification Value
    Product Length25.4mm(Max)
    Product TypeMotion Motor Control
    TypeStepper Motor Controller
    Minimum Operating Supply Voltage4.75V
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage7V
    Minimum Operating Temperature-40°C

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