Texas Instruments

ULN2003ANE4

ULN2003ANE4 Description

The ULN2003ANE4 is a 7NPN Darlington transistor array, designed by Texas Instruments, and belongs to the ULx200xA series. This device is specifically engineered for power management applications, particularly as a relay or solenoid driver. It features a low-side output configuration with an inverting input type, making it suitable for a wide range of industrial and automotive applications.

ULN2003ANE4 Features

• Output Type: Darlington, which provides high current gain and allows the device to drive heavy loads efficiently.
• Output Configuration: Low Side, enabling the ULN2003ANE4 to switch off the load by grounding it.
• Current - Output (Max): 500mA, capable of handling substantial current loads, making it ideal for driving relays, solenoids, and other actuators.
• Voltage - Load: 50V (Max), ensuring compatibility with a wide range of voltage levels.
• Input Type: Inverting, which simplifies the control logic and reduces the complexity of the circuit design.
• Number of Outputs: 7, providing multiple channels for driving various loads simultaneously.
• Mounting Type: Through Hole, offering robust mechanical stability and ease of integration into printed circuit boards.
• Package: Tube, ensuring the device is protected during handling and storage.
• Interface: Parallel, allowing for straightforward interfacing with microcontrollers and other digital devices.
• Product Status: Obsolete, but still widely used due to its reliability and availability in the secondary market.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring it meets the latest environmental and safety standards.
• Moisture Sensitivity Level (MSL): Not Applicable, making it suitable for storage in standard conditions without additional precautions.

ULN2003ANE4 Applications

The ULN2003ANE4 is highly versatile and finds applications in various industries, including:

• Automotive: Used in ignition systems, fuel injection systems, and other high-current applications.
• Industrial Automation: Driving relays, solenoids, and stepper motors in control systems.
• Consumer Electronics: Powering actuators and other high-current components in appliances.
• Telecommunications: Managing power distribution in base stations and other telecom equipment.

Conclusion of ULN2003ANE4

The ULN2003ANE4 is a robust and reliable Darlington transistor array that excels in driving high-current loads. Its low-side configuration and inverting input type simplify circuit design, while its ability to handle up to 500mA per channel makes it suitable for a wide range of applications. Despite being marked as obsolete, the ULN2003ANE4 remains a popular choice due to its proven performance and availability. Its compliance with REACH and ROHS3 standards ensures it meets the necessary environmental and safety requirements. Whether used in automotive, industrial, or consumer applications, the ULN2003ANE4 continues to be a reliable solution for power management needs.