ULN2803AN

Introducing the ULN2803AN, a versatile and robust high-voltage, high-current Darlington transistor array designed for a multitude of industrial and automotive applications. This powerful integrated circuit features eight NPN Darlington transistor pairs, each capable of sinking up to 500mA of current with a maximum collector-emitter voltage rating of 50V. This makes the ULN2803AN an ideal choice for driving inductive loads such as relays, solenoids, and lamps.

The ULN2803AN incorporates open-collector outputs with integral clamp diodes to provide protection against transient voltages, ensuring reliable performance even in noisy environments. Additionally, each Darlington pair includes a 2.7kΩ series base resistor, allowing the device to interface directly with TTL or 5V CMOS logic circuits without the need for additional external components.

The compact DIP-18 package of the ULN2803AN offers easy integration into existing systems, while its wide operating temperature range of -40°C to +85°C ensures suitability for a variety of environments. With its high current capability and compatibility with TTL and CMOS logic circuits, the ULN2803AN is well-suited for applications such as relay drivers, hammer drivers, lamp drivers, display drivers (both LED and gas discharge), line drivers, and logic buffers.

Overall, the ULN2803AN is a highly reliable and versatile Darlington transistor array that offers excellent performance and ease of use in a wide range of industrial and automotive applications. Its compact design, high current capability, and compatibility with TTL and CMOS logic circuits make it an ideal choice for driving inductive loads and interfacing with low-level logic circuitry.