ULN2003AN DARLINGTON TRANSISTOR ARRAY

The ULN2003 is a high-voltage, high-current Darlington transistor array integrated circuit (IC), ideal for driving loads like relays, stepper motors, LEDs, and other inductive loads. With 7 Darlington pairs in a single IC, each output can handle high currents, making it popular in applications requiring multiple, high-power outputs. This IC is especially useful for microcontroller projects, where it acts as an interface to control large loads with low control voltages.

Key Features of ULN2003 7 Darlington Transistor Array IC DIP-16:

• • 7-Channel Output: Provides 7 Darlington pairs, each capable of sinking large currents up to 500mA per channel.
  • High Voltage Tolerance: Can handle output voltages up to 50V, making it compatible with a wide range of loads.
  • Built-In Clamping Diodes: Integrated flyback diodes for each output protect the IC from voltage spikes caused by inductive loads.
  • Low Input Voltage: Compatible with 5V logic, ideal for microcontrollers and other digital circuits.
  • DIP-16 Package: Standard 16-pin dual in-line package for easy handling and integration on breadboards or PCBs.

Technical Specifications of ULN2003 7 Darlington Transistor Array IC DIP-16:

• • Input Voltage: 5V (typical)
  • Output Voltage: Up to 50V
  • Output Current: Up to 500mA per channel
  • Built-In Clamping Diodes: Integrated for each output channel
  • Package: DIP-16

Schematic Diagram, Connection, Wiring, and Pinout of ULN2003 7 Darlington Transistor Array IC DIP-16:

• Schematic Diagram: Shows the internal structure of 7 Darlington pairs connected to respective outputs, along with flyback diodes protecting each channel.
• Connection: Connect control signals from a microcontroller or control circuit to the inputs (pins 1-7) and connect load circuits to outputs (pins 10-16).
• Pinout:
  • Pins 1-7: Input control pins for each Darlington pair
  • Pins 10-16: Output pins for each Darlington pair
  • Pin 9: Ground
  • Pin 8: Common freewheeling diode anode for inductive loads

Applications of ULN2003 7 Darlington Transistor Array IC DIP-16:

• • Relay Driving: Ideal for controlling multiple relays from a microcontroller or low-power controller.
  • LED Arrays: Suitable for controlling multiple LEDs or LED segments in display panels.
  • Stepper Motors: Commonly used in stepper motor drivers and motor control circuits.
  • Inductive Load Driving: Drives solenoids, motors, and other inductive components effectively.

Equivalent Models of ULN2003 7 Darlington Transistor Array IC DIP-16:

• • ULN2803: Similar transistor array IC with 8 channels for higher channel count.
  • ULN2004: Similar IC for higher voltage applications with similar configurations.

Keywords for ULN2003 7 Darlington Transistor Array IC DIP-16:

• • Darlington Array
  • Relay Driver
  • Inductive Load Driver
  • Stepper Motor Control
  • ULN2003

Package Includes:

• • 1 x ULN2003 7 Darlington Transistor Array IC DIP-16