ULN2803 8 Darlington Transistor Arrays SMD IC

ULN2803 8 Darlington Transistor Arrays SMD IC

The ULN2803 is an 8-channel Darlington transistor array SMD IC designed to control high-current and high-voltage loads using low-level logic signals. This versatile IC is commonly used in industrial control systems, automation, automotive electronics, and other applications where switching of heavy electrical loads, such as relays, motors, solenoids, and lamps, is required. It is housed in a Surface-Mount Device (SMD) package, making it suitable for compact designs that require high integration and reliability. The ULN2803 features eight independent Darlington transistor pairs, each capable of driving loads with a high current gain, typically around 1000 or more. This allows the IC to handle load currents of up to 500mA per channel and withstand voltages of up to 50V, making it ideal for controlling relatively high-power devices. Its open-collector output configuration provides flexibility, allowing it to interface with various load types, from relays to stepper motors.

Features:-

• TTL/CMOS Logic Compatibility
• Low Saturation Voltage:
• High Current Handling
• Eight Darlington Transistor Pairs