ULN2803 Relay and Motor Driver IC DIP-18
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ULN2803 Relay and Motor Driver IC DIP-18

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  • Product SKU: INTEG023
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Specification

Description

The ULN2803 is a popular high-voltage, high-current Darlington transistor array. It's often used to drive inductive loads such as relays, solenoids, and stepper motors.

Here are some key Features and Characteristics of the ULN2803:

Darlington Array: The ULN2803 consists of eight Darlington pairs, each capable of driving high-current loads.

High Voltage Capability: It is designed to handle higher voltages, making it suitable for applications where the load requires a higher voltage.

High Current Capability: Each Darlington pair can handle a significant amount of current, making the ULN2803 suitable for driving various inductive loads.

Commonly Used in Relay and Motor Driver Applications:

The ULN2803 is commonly used to interface with microcontrollers or other control systems to drive relays, solenoids, stepper motors, and similar inductive loads.

Internal Clamp Diodes: The IC often includes internal clamp diodes to protect against voltage spikes generated by inductive loads.

Input Compatibility: It is designed to be compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.

Open-Collector Outputs: The outputs are open-collectors, allowing for flexible interfacing and easy connection to various voltage levels.

Standard Package: The ULN2803 is typically available in a standard 18-pin DIP (Dual Inline Package) or other surface-mount packages.

Cascade Capability: Multiple ULN2803 ICs can be cascaded to drive more outputs if needed.

Common Ground: The IC often features a common ground for easy integration into various circuit designs.

Features

  • Output current (single output) 500 mA (max)
  • High sustaining voltage output 50 V (min)
  • Output clamp diodes
  • Inputs compatible with various types of logic.
  •  Package Type−APG : DIP−18pin 

Applications

  • Relay Drivers
  • Hammer Drivers
  • Lamp Drivers
  • Display Drivers (LED and Gas Discharge)
  • Line Drivers
  • Logic Buffers

Physical Attributes

  • Length * Width * Height (mm): 23 x 8 x 8
  • Weight (gm) : 2

Documentation

Package Includes

  • 1 x ULN2803 Relay and Motor Driver IC DIP-18

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