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A4939KLPTR-T - Allegro Microsystems

Description: Three-Phase MOSFET Driver

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A4939KLPTR-T - Allegro Microsystems - PCB symbol
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PCB Footprints
A4939KLPTR-T - Allegro Microsystems PCB footprint - Other - Other - LP_28-pin eTSSOP
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3D Models
A4939KLPTR-T - Allegro Microsystems - 3D model - Other - LP_28-pin eTSSOP
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A4939KLPTR-T Details

  • Manufacturer Part Number:

    A4939KLPTR-T

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    8.75

  • Analog IC - Other Type:

    3-PHASE BRUSHLESS DC MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G28

  • Length:

    9.7 mm

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max (Vsup):

    50 V

  • Supply Voltage-Min (Vsup):

    7 V

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    4.4 mm

A4939KLPTR-T Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the A4939KLPTR-T is -40°C to 150°C.
  • Proper thermal management can be achieved by providing a heat sink, ensuring good airflow, and keeping the device away from heat sources. The thermal pad on the bottom of the package should be connected to a copper plane on the PCB to dissipate heat.
  • A good PCB layout for the A4939KLPTR-T should include a solid ground plane, separate power and ground planes for the device, and a low-impedance path for the output current. The device should be placed close to the battery and the output capacitors should be placed close to the device.
  • Troubleshooting issues with the A4939KLPTR-T can be done by checking the input voltage, output voltage, and current, as well as verifying the proper connection of the device pins. Additionally, checking the thermal management and PCB layout can help identify potential issues.
  • The A4939KLPTR-T has a higher output current rating and a wider input voltage range compared to other similar devices from Allegro MicroSystems LLC. It also has a more advanced current sensing and regulation mechanism.

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A4939KLPTR-T Overview

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