UDN2981 8 Channel Source Driver IC DIP 18 Package

UDN2981 8 Channel Source Driver IC DIP 18 Package 

The UDN2981 is a high-voltage 8-channel source (high-side) driver IC designed to drive loads such as relays, solenoids, lamps, LEDs, and stepper motors. Each output can source high current and withstand high voltage, making it ideal for interfacing low-level logic signals with high-power loads. The DIP-18 through-hole package allows easy prototyping and reliable installation.

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Key Features

• IC Type: 8-Channel Source Driver (High-Side Driver)
• Model: UDN2981
• Package: DIP-18 (Through-Hole)
• Logic-level compatible inputs (TTL / CMOS)
• High output voltage capability (up to 50V)
• Output current: up to 500mA per channel (peak)
• Integrated clamp diodes for inductive load protection
• Thermal shutdown protection
• Direct replacement for ULN2803 (source vs sink applications)

Typical Applications

• Relay and solenoid drivers
• LED matrix and display driving
• Stepper motor control
• Industrial automation outputs
• Microcontroller and PLC interfaces
• Automotive and appliance control systems