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ULN2803ADW - Texas Instruments

Description: ULN2803ADW, Darlington Transistor Array, NPN 0.5 A 50 V, Octal, 18-Pin, SOIC

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ULN2803ADW - Texas Instruments - PCB symbol
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PCB Footprints
ULN2803ADW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G18)
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ULN2803ADW - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G18)
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ULN2803ADW Details

  • Manufacturer Part Number:

    ULN2803ADW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-18

  • Pin Count:

    18

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • 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:

    -40 °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

  • Supply Current-Max:

    1.35 mA

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

ULN2803ADW Frequently Asked Questions (FAQs)

  • The ULN2803ADW can handle up to 500mA per output, but it's recommended to derate the current to 300mA per output for reliable operation.
  • To ensure that the outputs are turned off when the input is low, make sure to tie the input to a low-impedance source, such as a voltage divider or a pull-down resistor, to prevent floating inputs.
  • Yes, the ULN2803ADW can be used as a relay driver, but make sure to check the relay's coil voltage and current requirements to ensure compatibility. Also, consider adding a flyback diode to protect the driver from back-EMF.
  • To reduce power consumption, consider using a lower supply voltage, reducing the output current, or using a lower-power alternative such as the ULN2804A. Additionally, consider using a power-saving mode or shutdown feature if available.
  • Yes, the ULN2803ADW can be used with a microcontroller. Make sure to check the microcontroller's output voltage and current capabilities to ensure compatibility. Also, consider using a buffer or level shifter if necessary.

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ULN2803ADW 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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