The ULQ2003 device from Texas Instruments is a high-voltage, high-current Darlington transistor array designed to interface with standard digital logic families. This array consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads.

Each channel is rated at 500 mA and can withstand peak currents of 600 mA. Suppression diodes are included for inductive load driving and the inputs are pinned opposite the outputs to simplify board layout. The seven Darlington pairs can be paralleled for higher current capability.

Key Features:

• High-Voltage Outputs: 50 V
• Output Current: 500 mA per channel
• Peak Output Current: 600 mA per channel
• Input Compatible with Various Types of Logic: TTL, 5V CMOS, PMOS, and others.
• Relay-Driver Applications: Capable of driving a wide range of loads including solenoids, relays, DC motors, LED displays, filament lamps, and high-power buffers.

Applications:

The ULQ2003 is suitable for use in a wide variety of applications, including:

• Driver for Solenoids and Relays
• Stepper and DC Brushed Motor Drives
• LED Displays and Signage
• Line Drivers and Logic Buffers
• Industrial Controls

Quality and Reliability:

Texas Instruments is known for its commitment to quality and reliability. The ULQ2003 Darlington transistor array is no exception, offering consistent performance for industrial and consumer applications. With its robust design and integration of seven Darlington pairs in a single package, this device simplifies design and enhances overall system reliability.

Package Options:

The ULQ2003 is available in a 16-pin plastic DIP (N) package and a 16-pin SOIC (D) package, providing flexibility in design for space-constrained applications.