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A3988SJPTR-T - Allegro Microsystems

Description: Quad DMOS Full Bridge PWM Motor Driver

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A3988SJPTR-T - Allegro Microsystems PCB footprint - Quad Flat Packages - Quad Flat Packages - JP Package, 48-Pin LQFP with Exposed Thermal Pad
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A3988SJPTR-T - Allegro Microsystems  - 3D model - Quad Flat Packages - JP Package, 48-Pin LQFP with Exposed Thermal Pad
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A3988SJPTR-T Details

  • Manufacturer Part Number:

    A3988SJPTR-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    QFP

  • Package Description:

    LQFP-48

  • Pin Count:

    48

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    3

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    S-PQFP-G48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    4

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Current-Max:

    2.8 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLFQFP

  • Package Equivalence Code:

    QFP48,.35SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, HEAT SINK/SLUG, LOW PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.6 mm

  • Supply Current-Max (Isup):

    10 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:

    NMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    40

  • Width:

    7 mm

A3988SJPTR-T Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the A3988SJPTR-T is -20°C to 85°C.
  • To avoid damage, the input pins should be sequenced in the following order: VCC, then VREG, then all other input pins. This ensures that the internal voltage regulator is powered up before the other input pins.
  • To minimize EMI, it is recommended to use a multi-layer PCB with a solid ground plane, and to keep the device's output traces as short as possible. Additionally, a ferrite bead or choke can be used in series with the output to further reduce EMI.
  • The output current capability of the A3988SJPTR-T can be calculated using the following formula: Iout = (VCC - VREG) / Rds(on), where Rds(on) is the on-state resistance of the internal FET.
  • The VREG pin is the output of the internal voltage regulator, which provides a regulated 5V supply for the device's internal circuitry. It should be connected to a 10uF capacitor to ground to ensure stable operation.

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A3988SJPTR-T Overview

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Part Image A3988SJP-T Allegro MicroSystems LLC

Stepper Motor Controller, 1.2A, NMOS, PQFP48