ULN2074 ,Quadruple High-Current Darlington Switch IC, 1.5A Output, 2W Dissipation,DIP-16

The ULN2074 is a monolithic, quadruple, high-voltage, high-current n-p-n Darlington-transistor amplifier device designed for high-current switching applications. With four independently controlled Darlington pairs, it supports up to 1.5A output current per channel, making it ideal for driving inductive loads such as relays, solenoids, motors, and lamps.

This IC is compatible with TTL or 5V CMOS logic levels and operates effectively in high-temperature environments. Each channel is protected with internal clamp diodes to handle back-emf from inductive loads, ensuring circuit protection. The ULN2074 is well-suited for industrial automation, signal buffering, and relay driver circuits, delivering reliable performance in demanding applications.

Key Features :

• Quadruple Darlington transistor array with up to 1.5A output current per channel.
• High-voltage capability with up to 50V collector-emitter sustaining voltage.
• Integrated free-wheeling diodes for inductive load protection.
• Wide operating temperature range from -20C to +85C.
• Compatible with TTL and 5V CMOS logic levels.
• High current gain minimizes base drive requirements, reducing system complexity.