ULN2003ADRG4 High-Voltage, High-Current Darlington Transistor Array by Texas Instruments

The ULN2003ADRG4 from Texas Instruments is a robust, high-voltage, and high-current Darlington transistor array designed for interfacing between low-level logic circuitry and multiple peripheral power loads. This integrated circuit is ideal for driving a wide range of loads such as relays, solenoids, stepper motors, and other high-current or high-voltage devices in a variety of industrial, consumer, and computing applications.

Comprised of seven NPN Darlington pairs, the ULN2003ADRG4 features output stages with common-cathode clamp diodes for transient suppression, making it suitable for inductive load management. Each channel is capable of sinking up to 500mA, and the array can withstand peak currents of up to 600mA. With an output voltage of 50V, it is designed to be compatible with TTL, 5V CMOS, and PMOS logic families, thus offering a versatile solution for interfacing with various control systems.

The ULN2003ADRG4 is housed in an SOIC-16 package, ensuring a compact footprint for space-constrained applications. Its design includes a series base resistor for each Darlington pair, which minimizes input current, making the device efficient and reliable. This integrated circuit is characterized for operation from 0°C to 70°C, providing a reliable performance in a broad range of environmental conditions.

Key features of the ULN2003ADRG4 include:

• Seven Darlington pairs per package
• Output current 500mA per driver (600mA peak)
• Output voltage 50V
• Input compatible with various types of logic
• Clamp diodes for transient suppression
• Series base resistor included for each Darlington pair
• Wide operating temperature range

With its robust design and ability to drive multiple high-power outputs, the ULN2003ADRG4 is a highly versatile component that enhances the efficiency and reliability of electronic systems. Texas Instruments' commitment to quality ensures that this Darlington transistor array meets the stringent requirements of modern electronic applications.