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ULN2803: 8 Channel Darlington Driver (Solenoid/Unipolar Stepper) - ULN2803A

PRODUCT ID: 970
$1.95
QTY DISCOUNT
1-9 $1.95
10-99 $1.76
100+ $1.56
  • Description-

    Description

    Bring in some muscle to your output pins with 8 mighty Darlingtons! This DIP chip contains 8 drivers that can sink 500mA from a 50V supply and has kickback diodes included inside for driving coils. This will let your little microcontroller or microcomputer power solenoids, DC motors (in one direction) and unipolar stepper motors.

    Please note, this is an 'open collector' driver - it can only be used to connect the load to ground and there will be a 1 Volt (or more) 'drop' across the internal transistors. The inputs can be driven by 3.3V or 5V logic. Fits nicely in any breadboard or perfboard.

    Please Note: Your chip may have a part marking of ULQ2803A, this is the extended temperature range version of the ULN2803A, so it can run from -40 to 105 °C. It is otherwise identical in pin out, usage, voltage and current capabilities.

  • Technical Details+

    Technical Details

    RoHS 2 2011 65 EU Compliant
    RoHS 2 2015 863 EU Compliant
  • Learn+

    Learn

    Control a stepper motor with a L293D or ULN2803
    The Adafruit guide to choosing and using stepper motors.
    Make your own neon-style signs with LED "neon" strips. Animate the sign with a Metro M0
    A practical guide to transistors and their use
    SEE ALL GUIDES

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