ULN2803 Darlington Transistor Array, 8-Channel, 50V, SOP18 / QFN20

The ULN2803 is an 8-channel high-current Darlington driver array capable of driving loads up to 500mA per channel with a 50V maximum output voltage.
It is widely used in home appliances, security systems, and motor control applications, offering high reliability and compact integration.

Key Specifications

• Channels: 8

• Max Output Current: 500mA

• Max Output Voltage: 50V

• Packages: SOP18, QFN20 (4×4)

Applications

• Small appliances

• Security and alarm systems

• Stepper motors

Features

• High output drive capability

• Integrated clamp diodes

• Multiple package options