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UDN2981A - Allegro Microsystems

Description: Allegro Microsystems UDN2981A Octal NPN + PNP Darlington Transistor Array, 500 mA 50 V, 18-Pin PDIP

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UDN2981A - Allegro Microsystems PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 20-Pin SOICW
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UDN2981A - Allegro Microsystems  - 3D model - Dual-In-Line Packages - 20-Pin SOICW
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UDN2981A Details

  • Manufacturer Part Number:

    UDN2981A

  • Rohs Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP, DIP18,.3

  • Pin Count:

    18

  • Reach Compliance Code:

    Unknown

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    0

  • Built-in Protections:

    TRANSIENT

  • Driver Number of Bits:

    8

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    BUFFER OR INVERTER BASED PERIPHERAL DRIVER

  • JESD-30 Code:

    R-PDIP-T18

  • JESD-609 Code:

    e0

  • Length:

    22.86 mm

  • Number of Functions:

    8

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Characteristics:

    OPEN-EMITTER

  • Output Current Flow Direction:

    SOURCE

  • Output Current-Max:

    0.35 A

  • Output Peak Current Limit-Nom:

    0.5 A

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP18,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    240

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.334 mm

  • Supply Voltage-Max:

    50 V

  • Supply Voltage-Min:

    5 V

  • Supply Voltage-Nom:

    15 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL EXTENDED

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Turn-off Time:

    10 µs

  • Turn-on Time:

    2 µs

  • Width:

    7.62 mm

UDN2981A Frequently Asked Questions (FAQs)

  • The maximum current rating of the UDN2981A is 1.5A per channel, with a total current limit of 3A for all channels combined.
  • To ensure proper thermal management, it is recommended to provide a heat sink or thermal pad to dissipate heat, and to keep the device away from other heat sources. The maximum junction temperature is 150°C.
  • The minimum input voltage required for the UDN2981A is 5.5V, although it can operate down to 4.5V with reduced performance.
  • Yes, the UDN2981A is rated for operation up to 125°C, making it suitable for high-temperature applications. However, the device's performance may degrade at higher temperatures.
  • It is recommended to use voltage regulators and overvoltage protection (OVP) circuits to protect the UDN2981A from overvoltage conditions. Undervoltage protection (UVP) circuits can also be used to prevent damage from undervoltage conditions.

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