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ULN2004A - STMicroelectronics

Description: ULN2004A, Darlington Transistor Array, NPN 0.5 A 50 V, Array 7 HFE:1000, 16-Pin, PDIP

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ULN2004A - STMicroelectronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - ULN2004A
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ULN2004A Details

  • Manufacturer Part Number:

    ULN2004A

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Package Description:

    DIP-16

  • Pin Count:

    16

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    10 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    5

  • Built-in Protections:

    TRANSIENT

  • Driver Number of Bits:

    7

  • Interface IC Type:

    BUFFER OR INVERTER BASED PERIPHERAL DRIVER

  • JESD-30 Code:

    R-PDIP-T16

  • JESD-609 Code:

    e3

  • Length:

    19.18 mm

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    OPEN-COLLECTOR

  • Output Current Flow Direction:

    SINK

  • Output Peak Current Limit-Nom:

    0.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Seated Height-Max:

    5.33 mm

  • Supply Voltage-Max:

    8 V

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Turn-off Time:

    1 µs

  • Turn-on Time:

    1 µs

  • Width:

    7.87 mm

ULN2004A Frequently Asked Questions (FAQs)

  • The maximum current that each output of ULN2004A can handle is 500mA. However, it's recommended to derate the current to 350mA for reliable operation.
  • To calculate the power dissipation of the ULN2004A, you need to consider the voltage drop across the internal resistors and the current flowing through them. A rough estimate can be made using the formula: Pd = (Vin - Vout) x Iout x Rint, where Rint is the internal resistance of the output stage.
  • Yes, the ULN2004A can be used as a relay driver. However, you need to ensure that the relay coil current is within the maximum current rating of the output stage (500mA). Also, consider the voltage drop across the internal resistors and the relay coil resistance when designing your circuit.
  • To protect the ULN2004A from back-EMF when driving inductive loads, you can add a freewheeling diode (such as 1N4007) in parallel with the load. This diode will absorb the back-EMF and prevent it from damaging the ULN2004A.
  • Yes, the ULN2004A can be used to drive LEDs. However, you need to ensure that the LED current is within the maximum current rating of the output stage (500mA). Also, consider the voltage drop across the internal resistors and the LED forward voltage when designing your circuit.

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ULN2004A Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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