HLF ULN2804 – Eight Darlington Array Driver (DIP18) | 8-Channel High-Current Driver | 50V, 500mA per Channel, –40°C to +85°C | Through-Hole Package

The HLF ULN2804 (DIP18) is an eight-channel Darlington transistor array designed to interface 6V to 15V logic levels to high-current or high-voltage loads. Each Darlington pair can handle up to 500mA per channel and withstand voltages up to 50V, making it ideal for driving relays, solenoids, stepper motors, and LED displays.

Integrated clamp diodes provide protection from inductive load transients, ensuring safe and reliable operation. Optimized for higher voltage logic compatibility, the ULN2804 is widely used in industrial, automotive, and embedded control applications.

Key Features:

• Function: 8-Channel Darlington Transistor Array

• Technology: Bipolar

• Operating Voltage: Up to 50V

• Output Current: 500mA per Channel

• Input Logic Compatibility: 6V–15V CMOS/TTL

• Operating Temperature: –40°C to +85°C

• Package Type: DIP18 (Dual In-Line Package)

• Mounting Type: Through-Hole

• High-Current Open-Collector Outputs

• Built-In Clamp Diodes for Inductive Loads

• Common Cathode Diode Connection for Protection

• Interfaces Directly with 6V–15V Logic Systems

• Robust and Proven Design for Industrial Use

Applications:

• Relay and Solenoid Drivers

• LED and Lamp Control Circuits

• Stepper Motor Driver Interface (with L297/L298)

• Printer, Automation, and Control Systems

• Power Interface for Embedded Controllers