ULN2803AN

Manufacturer Part Number: ULN2803AN Manufacturer / Brand: XBLW
Part of Description: The MIC29302DTR is a high-current, high-accuracy, low-dropout voltage regulator designed for use in a wide range of electronic applications. Lead Free Status / RoHS Status: Digital Signal Processors & Controllers - DSP, DSC 16 BIT HYBRID CNTRLR
Ship From: HK/Shen Zhen Shipment Way: DHL/Fedex/TNT/UPS
Datasheets:

Product parameters

ManufacturerXBLW
DetailsRoHS
Mounting StyleSMD/SMT
Package / CaseDIP-18
Minimum Operating Temperature– 40 C
Transistor Polarity+85 C
PackagingTube
Moisture SensitiveYes
Factory Pack Quantity1000

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    SUBMIT INFORMATION

    The ULN2803AN is a high-voltage, high-current Darlington transistor array IC designed for driving larger power loads such as motors, lamps, and other inductive devices. It consists of eight NPN Darlington transistor pairs, each rated at 500mA collector current with a maximum collector-emitter voltage of 50V. The IC features common-cathode clamp diodes for switching inductive loads, protecting the transistors from inductive spikes generated when the load is switched off.

    Key Features:

    1. High-Voltage, High-Current Capability:
      • The ULN2803AN can handle up to 50V and provide up to 500mA per output channel, making it suitable for driving a wide range of power loads.
    2. Darlington Transistor Array:
      • The IC incorporates eight Darlington transistor pairs, which provide high current gain and voltage amplification, making it ideal for driving loads that require high current and voltage levels.
    3. Built-in Clamp Diodes:
      • Each output channel features a built-in clamp diode, which protects the IC from inductive spikes and ensures reliable operation.
    4. TTL/CMOS Compatible Inputs:
      • The ULN2803AN has TTL/CMOS compatible inputs, allowing it to interface easily with digital circuits and microcontrollers.
    5. Versatile Applications:
      • The IC can be used in a variety of applications, including relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers.
    6. Package Options:
      • The ULN2803AN is available in PDIP-18 and SOIC-18 packages, providing flexibility in terms of board layout and space constraints.

    Operating Conditions:

    • The operating temperature range of the ULN2803AN is from -40°C to 85°C.
    • The IC has a maximum collector-emitter saturation voltage of 1.1V to 1.6V depending on the current level.

    Applications:

    • Relay Drivers: The ULN2803AN can be used to drive relays, providing the necessary current and voltage to switch the relay contacts.
    • Motor Drivers: The IC can be used to drive small motors, such as DC motors or stepper motors, by providing the required current and voltage to the motor coils.
    • Lamp Drivers: The ULN2803AN can be used to control incandescent lamps, LED lights, or other lighting devices by providing the necessary power to turn them on and off.
    • Display Drivers: The IC can be used to drive LED displays or gas discharge displays, providing the required current and voltage to illuminate the display elements.

    In summary, the ULN2803AN is a versatile, high-voltage, high-current Darlington transistor array IC that is ideal for driving larger power loads in a variety of applications. Its built-in clamp diodes provide protection against inductive spikes, and its TTL/CMOS compatible inputs make it easy to interface with digital circuits and microcontrollers.

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