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L9942XP1TR - STMicroelectronics

Description: Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile

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L9942XP1TR - STMicroelectronics - PCB symbol
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L9942XP1TR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - PowerSSO-24
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L9942XP1TR - STMicroelectronics - 3D model - Small Outline Packages - PowerSSO-24
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L9942XP1TR Details

  • Manufacturer Part Number:

    L9942XP1TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Package Description:

    ROHS COMPLIANT, SSOP-24

  • Pin Count:

    24

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    23 Weeks

  • Manufacturer:

    STMicroelectronics

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e3

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Output Current-Max:

    2.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HSSOP

  • Package Equivalence Code:

    SOP24,.4,32

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.45 mm

  • Supply Current-Max (Isup):

    20 mA

  • Supply Voltage-Max (Vsup):

    5.3 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

L9942XP1TR Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends a 2-layer or 4-layer PCB with a solid ground plane and a thermal relief pattern under the IC to ensure optimal thermal performance. A minimum of 2 oz copper thickness is recommended.
  • To ensure EMC, STMicroelectronics recommends following the guidelines in the application note AN2679, which provides guidance on PCB layout, component selection, and shielding. Additionally, the device should be placed in a shielded enclosure, and the PCB should be designed to minimize radiation.
  • STMicroelectronics recommends using a low-ESR ceramic capacitor with a value between 10uF to 22uF, depending on the input voltage and current requirements. The capacitor should be placed as close as possible to the VIN pin.
  • STMicroelectronics recommends following a systematic troubleshooting approach, starting with checking the input voltage, output voltage, and current consumption. Verify that the PCB layout and component selection meet the recommended guidelines. Use oscilloscopes and thermal imaging cameras to identify potential issues.
  • The L9942XP1TR is rated for operation up to 150°C, but the device's performance and reliability may degrade at high temperatures. STMicroelectronics recommends derating the device's output current and voltage according to the temperature derating curve provided in the datasheet.

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L9942XP1TR 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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L9942XP1TR Alternates

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Part Image L9942XP1 STMicroelectronics

Stepper Motor Controller, 2.5A, PDSO24