Texas Instruments

ULN2003ADRG4

ULN2003ADRG4 Description

The ULN2003ADRG4 is a high-performance, 7-channel Darlington transistor array from Texas Instruments, designed for power distribution switches and load drivers. This obsolete device offers a unique combination of technical specifications and performance benefits, making it ideal for various applications. With its inverting input type, low-side output configuration, and a 1:1 input-to-output ratio, the ULN2003ADRG4 provides reliable and efficient control of high-current loads.

ULN2003ADRG4 Features

• Output Type: Darlington - Enables high current gain and low saturation voltage, improving overall performance.
• Output Configuration: Low Side - Facilitates easy connection to low-side switches in various applications.
• Product Status: Obsolete - While no longer in production, the ULN2003ADRG4 remains a popular choice for existing designs.
• Current - Output (Max): 500mA - Supports a wide range of high-current applications.
• REACH Status: REACH Unaffected - Compliant with European Union regulations on the Registration, Evaluation, Authorization, and Restriction of Chemicals.
• RoHS Status: ROHS3 Compliant - Adheres to the Restriction of Hazardous Substances Directive, making it suitable for environmentally conscious designs.
• Moisture Sensitivity Level (MSL): 1 (Unlimited) - Provides excellent resistance to moisture and humidity, ensuring reliable operation in various environments.
• Switch Type: Relay, Solenoid Driver - Ideal for controlling relays and solenoids in automotive, industrial, and consumer applications.
• Voltage - Load (Max): 50V - Capable of handling high voltage loads, making it suitable for a wide range of applications.
• Mounting Type: Surface Mount - Facilitates easy integration into printed circuit boards (PCBs).
• Number of Outputs: 7 - Provides multiple channels for controlling various loads simultaneously.
• Series: ULx200xA - Part of a popular series of Darlington transistor arrays known for their high performance and reliability.

ULN2003ADRG4 Applications

The ULN2003ADRG4 is ideal for various applications where high current and voltage control are required. Some specific use cases include:

1. Automotive: Controlling relays and solenoids in engine management systems, lighting, and other automotive electronics.
2. Industrial: Driving high-current loads in motor control systems, industrial automation, and robotics.
3. Consumer Electronics: Powering high-current devices in home appliances, audio systems, and other consumer products.
4. Telecommunications: Managing power distribution in communication systems and networks.

Conclusion of ULN2003ADRG4

Despite being an obsolete product, the ULN2003ADRG4 remains a popular choice for its unique combination of technical specifications and performance benefits. Its Darlington output type, low-side output configuration, and high current and voltage capabilities make it ideal for a wide range of applications in automotive, industrial, consumer electronics, and telecommunications. While newer models may offer additional features and improved performance, the ULN2003ADRG4 continues to be a reliable and cost-effective solution for existing designs and applications.