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A4988SETTR-T - Allegro Microsystems

Description: DMOS Microstepping Driver W/Translator And Ocp

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PCB Footprints
A4988SETTR-T - Allegro Microsystems PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - ET Package, 28-Pin QFN with Exposed Thermal Pad
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3D Models
A4988SETTR-T - Allegro Microsystems  - 3D model - Quad Flat No-Lead - ET Package, 28-Pin QFN with Exposed Thermal Pad
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A4988SETTR-T Details

  • Manufacturer Part Number:

    A4988SETTR-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Package Description:

    QFN-28

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    8

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    S-XQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Current-Max:

    2 A

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    8 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    DMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    40

  • Width:

    5 mm

A4988SETTR-T Frequently Asked Questions (FAQs)

  • The maximum current rating of the A4988SETTR-T is 2A per phase, with a peak current rating of 2.5A.
  • The current limit on the A4988SETTR-T is set by adjusting the voltage on the VREF pin. The current limit is proportional to the voltage on the VREF pin, with a maximum current limit of 2A per phase.
  • The minimum input voltage required for the A4988SETTR-T is 8V, with a recommended operating range of 8V to 35V.
  • Yes, the A4988SETTR-T can be used with stepper motors that have different step angles. However, the microstepping resolution may need to be adjusted accordingly to ensure proper motor operation.
  • To troubleshoot issues with the A4988SETTR-T, check the input voltage, current limit, and motor connections. Also, verify that the microstepping mode is set correctly and that the motor is properly configured.

Trust Checks

This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
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A4988SETTR-T Overview

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