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ULN2803LW - Allegro Microsystems

Description: HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS

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ULN2803LW Details

  • Manufacturer Part Number:

    ULN2803LW

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-18

  • Pin Count:

    18

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    0

  • Built-in Protections:

    TRANSIENT

  • Driver Number of Bits:

    8

  • Interface IC Type:

    BUFFER OR INVERTER BASED PERIPHERAL DRIVER

  • JESD-30 Code:

    R-PDSO-G18

  • Length:

    11.55 mm

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Characteristics:

    OPEN-COLLECTOR

  • Output Current Flow Direction:

    SINK

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP18,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Seated Height-Max:

    2.65 mm

  • Surface Mount:

    YES

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Turn-off Time:

    1 µs

  • Turn-on Time:

    1 µs

  • Width:

    7.5 mm

ULN2803LW Frequently Asked Questions (FAQs)

  • The maximum current that can be sunk by each output of the ULN2803LW is 500 mA.
  • To protect the ULN2803LW from back-EMF when driving inductive loads, a freewheeling diode should be connected in parallel with the inductive load.
  • The minimum input voltage required to guarantee proper operation of the ULN2803LW is 3.5 V.
  • Yes, the ULN2803LW can be used to drive a relay, but the relay's coil current and voltage must be within the ULN2803LW's specifications.
  • The power dissipation of the ULN2803LW can be calculated using the formula: Pd = Σ(Io x Vo) + (Vin x Iin), where Io is the output current, Vo is the output voltage, Vin is the input voltage, and Iin is the input current.

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