The ULN2003AN is a widely used high-voltage, high-current Darlington transistor array. It consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The ULN2003AN is commonly used to drive a wide range of loads, including relays, motors, and solenoids. It is designed to be compatible with a wide range of logic families, including 5V TTL, CMOS, and PMOS. The ULN2003AN can handle a maximum load voltage of 50V and a maximum continuous current of 500mA per channel. With its built-in diodes for inductive kickback protection, this device is a reliable and cost-effective solution for driving high-power loads in various applications. It comes in a 16-pin DIP package, making it easy to integrate into a wide range of circuit designs. With its high-voltage and high-current capabilities, the ULN2003AN is an ideal choice for driving a variety of loads in industrial, automotive, and consumer electronics applications.