The UDN2984A is an 8-channel source driver designed for interfacing low-level logic with high-current loads. Manufactured by Allegro MicroSystems, this device is commonly used to drive relays, solenoids, lamps, and other similar devices. It is designed to simplify circuit design and improve reliability through integrated features.

Applications

• Driving relays
• Driving solenoids
• Lamp drivers
• LED displays
• Logic Buffers

Features

• 8-channel source driver
• High output current capability
• TTL/CMOS compatible inputs
• Internal clamp diodes for inductive load protection
• Thermal shutdown protection

Benefits

• Simplified design: Internal clamp diodes eliminate the need for external components.
• High reliability: Thermal shutdown protection prevents damage from overheating.
• Versatile: TTL/CMOS compatible inputs allow easy interfacing with various logic systems.
• Efficient: High output current capability drives a wide range of loads.
• High Density: Eight channels in a single package reduce board space.

Additional Details

The UDN2984A operates from a specified supply voltage range (consult datasheet for specific voltage). Each output can typically source a specified continuous current (refer to datasheet for amperage). The device is available in a DIP or SOIC package. Detailed specifications including voltage limits, current limits, and thermal characteristics should be verified from the manufacturer's datasheet prior to application. Proper heat sinking may be required depending on the load and ambient temperature.