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L297D - STMicroelectronics

Description: L297D, Stepper Motor Controller, 4.75 to 7V, 20-Pin SOIC

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L297D - STMicroelectronics - PCB symbol
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PCB Footprints
L297D - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - L2726
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3D Models
L297D - STMicroelectronics - 3D model - Small Outline Packages - L2726
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L297D Details

  • Manufacturer Part Number:

    L297D

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SO-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    8

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max (Isup):

    80 mA

  • Supply Voltage-Max (Vsup):

    7 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

L297D Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the VCC pin is 40V, but it's recommended to keep it between 10V and 30V for optimal performance.
  • The value of Rs and Ct depends on the maximum current and voltage of the motor. A good starting point is to choose Rs = 0.1 ohm and Ct = 2.2nF, and then adjust based on the motor's characteristics and the desired current sensing accuracy.
  • The dead time pin is used to set the minimum time between the turn-off of one switch and the turn-on of the other switch in a half-bridge configuration. The dead time should be set to at least 1us to ensure proper switching and to prevent shoot-through currents.
  • The L297D has a built-in overcurrent protection feature. Connect the sense resistors (Rs) to the CS pin, and set the threshold voltage (Vth) using an external resistor divider. When the current exceeds the threshold, the L297D will shut down the outputs to protect the motor and the driver.
  • No, the L297D is designed to drive brushed DC motors only. It does not have the necessary logic to drive a brushless DC motor, which requires a more complex control scheme.

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L297D Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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Part Image L297D013TR STMicroelectronics

Stepper Motor Controller, BIPolar, PDSO20