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UCN5801A - Allegro Microsystems

Description: DRIVER IC; Supply Voltage Min:-; Supply Voltage Max:-; No. of Outputs:-; Output Voltage:-; Output Current:-; Driver Case Style:DIP; Product Range:-; MSL:-; Device Type:Latched; No. of Drivers:4Drivers; No. of Pins:22Pins

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UCN5801A - Allegro Microsystems - PCB symbol
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UCN5801A - Allegro Microsystems PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - UCN5801A
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UCN5801A Details

  • Manufacturer Part Number:

    UCN5801A

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    0.400 INCH, DIP-22

  • Pin Count:

    22

  • 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:

    LATCH BASED PERIPHERAL DRIVER

  • JESD-30 Code:

    R-PDIP-T22

  • JESD-609 Code:

    e3

  • Length:

    27.555 mm

  • Number of Functions:

    1

  • Number of Terminals:

    22

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Characteristics:

    OPEN-COLLECTOR

  • Output Current Flow Direction:

    SINK

  • Output Current-Max:

    0.35 A

  • Output Peak Current Limit-Nom:

    0.5 A

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP22,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.33 mm

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    NO

  • Technology:

    BIMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    10.16 mm

UCN5801A Frequently Asked Questions (FAQs)

  • A good PCB layout practice is to keep the high-current paths short and away from sensitive analog circuits. Use a solid ground plane and keep the motor driver IC close to the motor. Use a common mode choke or ferrite bead to filter the motor current.
  • The sense resistor value depends on the motor current and the desired current sense accuracy. A good starting point is to choose a sense resistor value that sets the current sense voltage to around 0.5-1.0 V at the maximum motor current. Use the formula Rsense = (Vref / Imax) * (Rgain / 2) to calculate the sense resistor value.
  • The UCN5801A can operate up to 100 kHz, but the maximum operating frequency depends on the specific application and motor characteristics. It's recommended to consult the datasheet and application notes for more information.
  • Use a voltage regulator to regulate the supply voltage to the UCN5801A. Add a TVS diode or a zener diode to protect against overvoltage conditions. Implement overcurrent protection using a current sense resistor and a comparator or a dedicated overcurrent protection IC.
  • Yes, the UCN5801A can be used to drive a stepper motor. However, the UCN5801A is a brushed DC motor driver, and stepper motors require a different drive scheme. You may need to add additional circuitry to generate the required stepper motor drive signals.

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UCN5801A Overview

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