ULN2004AG High-Voltage, High-Current Darlington Transistor Array from Texas Instruments

The ULN2004AG is a versatile and robust integrated circuit produced by Texas Instruments, designed to handle high-voltage and high-current loads in various electronic applications. This Darlington transistor array comprises seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. It is the perfect choice for interfacing between low-level logic circuitry and multiple peripheral power loads.

Key Features

• High-Voltage Outputs: The ULN2004AG can handle output voltages up to 50V, making it suitable for a wide range of applications.
• High-Current Capability: Each Darlington pair can deliver a continuous collector current of 500mA, allowing the device to drive components such as relays, solenoids, and stepper motors effectively.
• Integrated Suppression Diodes: The inclusion of clamp diodes for inductive transient suppression protects the device and enhances reliability when driving inductive loads.
• Compatible with Various Logic Families: This IC can interface with standard logic families thanks to its 5V TTL, CMOS logic level compatibility.
• Multiple Package Options: The ULN2004AG is available in different package types, including DIP, SOIC, and others, providing flexibility for various PCB designs.

Applications

The ULN2004AG is widely used in automation and control systems, consumer electronics, and automotive applications. Its ability to easily interface with microcontrollers and other logic devices makes it an ideal driver for:

• Relays
• Solenoids
• Stepper motors
• Lamp drivers
• LED displays

Reliability and Performance

Engineered with Texas Instruments' commitment to quality, the ULN2004AG ensures reliable performance in demanding environments. Its thermal shutdown and peak current protection features add an extra layer of safety for your designs.

Whether you're developing an industrial control system or a DIY electronics project, the ULN2004AG provides the driving force you need, with the ease of use and reliability that Texas Instruments is known for.