Texas Instruments

ULN2004ADE4

ULN2004ADE4 Description

The ULN2004ADE4 is a 7NPN Darlington transistor array from Texas Instruments, designed for high voltage and high current applications. This device is part of the ULx200xA series and features a low-side output configuration with an inverting input type. It is capable of handling a maximum output current of 500mA per channel and can operate with a load voltage up to 50V. The ULN2004ADE4 is housed in a surface-mount 16SOIC package, making it suitable for compact and efficient PCB designs. Despite being marked as obsolete, it remains a reliable choice for applications requiring robust and efficient power management.

ULN2004ADE4 Features

• Output Type: NPN Darlington transistors provide high current gain and low saturation voltage.
• Output Configuration: Low-side configuration ensures efficient power delivery and control.
• Current - Output (Max): Each of the seven outputs can handle up to 500mA, making it suitable for driving high-current loads.
• Voltage - Load: Maximum load voltage of 50V supports a wide range of applications.
• Input Type: Inverting inputs simplify circuit design and reduce the need for additional components.
• Switch Type: Ideal for driving relays, solenoids, and other inductive loads.
• Mounting Type: Surface mount technology (SMT) allows for compact and reliable PCB integration.
• Number of Outputs: Seven outputs provide flexibility in driving multiple loads.
• Package: 16SOIC package offers a compact footprint and efficient thermal performance.
• Compliance: REACH unaffected and ROHS3 compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited) indicates robustness against moisture, enhancing reliability in various environments.

ULN2004ADE4 Applications

The ULN2004ADE4 is well-suited for a variety of applications due to its robust performance and versatile features. Key applications include:

• Relay and Solenoid Driving: The high current capability and inverting inputs make it ideal for driving relays, solenoids, and other inductive loads.
• Motor Control: Efficiently drive small motors with precise control.
• LED Lighting: Control high-current LED arrays with minimal power loss.
• Power Management: Manage power distribution in complex electronic systems.
• Automotive Electronics: Suitable for automotive applications requiring high reliability and robustness.
• Industrial Automation: Drive various actuators and sensors in industrial environments.

Conclusion of ULN2004ADE4

The ULN2004ADE4 from Texas Instruments is a versatile and reliable 7NPN Darlington transistor array designed for high voltage and high current applications. Its low-side output configuration, inverting inputs, and surface-mount packaging make it an ideal choice for compact and efficient power management solutions. Despite being marked as obsolete, the ULN2004ADE4 remains a robust and compliant component, suitable for a wide range of applications including relay and solenoid driving, motor control, and LED lighting. Its compliance with REACH and ROHS3 standards ensures it meets environmental and regulatory requirements, making it a dependable choice for modern electronics design.