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LM629M-8 - Texas Instruments

Description: TEXAS INSTRUMENTS - LM629M-8 - Motor Driver/Controller, DC Brushless Servo, 4.5V to 5.5V supply, 2.4V/1.6 mA/8 Outputs, SOIC-24

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LM629M-8 - Texas Instruments - PCB symbol
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PCB Footprints
LM629M-8 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G24)
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LM629M-8 - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G24)
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LM629M-8 Details

  • Manufacturer Part Number:

    LM629M-8

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    24

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.50

  • Date Of Intro:

    1995-01-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    3-PHASE BRUSHLESS DC MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e0

  • Length:

    15.4 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP24,.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):

    100 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    NMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

LM629M-8 Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. Additionally, use short traces and avoid vias under the device to minimize inductance. TI also provides a layout guide in their application note SLUA271.
  • The value of C_COMP depends on the specific application and the desired stability margin. TI recommends using their WEBENCH Power Designer tool to calculate the optimal value of C_COMP based on the input voltage, output voltage, and output current. Alternatively, a general guideline is to start with a value of 10nF to 22nF and adjust as needed.
  • The LM629M-8 can tolerate up to 10% of the input voltage as ripple, but it's recommended to keep the ripple below 5% to ensure stable operation and minimize output voltage noise.
  • The LM629M-8 is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. TI recommends derating the output current and using a heat sink to keep the junction temperature below 100°C for optimal performance.
  • The LM629M-8 has a built-in overcurrent protection feature that can be enabled by connecting a resistor (R_OC) between the OC pin and GND. The value of R_OC determines the overcurrent threshold. TI provides a calculation formula for R_OC in the datasheet.

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LM629M-8 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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