ULN2803ADWR

About this part

ULN2803ADWR – 8-Channel Darlington Transistor Array – Texas Instruments
This ULN2803ADWR Darlington transistor array from Texas Instruments provides robust interface solutions between low-power logic circuits and high-current loads. Ideal for industrial control systems, this obsolete-status component remains available through PCX for legacy designs and repairs, featuring built-in clamp diodes for inductive load protection.

Key Features

8 NPN Darlington Channels with 500mA current rating per channel
50V Output Voltage capability
Surface Mount Design: 18-SOIC package (7.50mm width)
Wide Temperature Range: -40°C to 85°C operation
Integrated Clamp Diodes for inductive spike protection
TTL, CMOS, and PMOS logic compatibility

Technical Specifications
Manufacturer: Texas Instruments | Base Part Number: ULN2803 | Supplier Device Package: 18-SOIC
Organization: Eight independent Darlington pairs with common emitters. Features open-collector outputs and compatible with various logic families. The 18-SOIC surface-mount package enables compact PCB designs with reliable thermal performance.

Typical Applications

Relay and solenoid drivers
Stepper motor controllers
LED display/Lamp drivers
Logic buffer interfaces
Industrial automation systems

About Texas Instruments
Texas Instruments (TI) stands as a global semiconductor leader with over 90 years of innovation history. Their expertise in analog and embedded processing technologies has established industry standards for reliability across automotive, industrial, and consumer electronics.
TI components are renowned for rigorous quality control and consistent performance under demanding conditions. Even obsolete parts like the ULN2803 series maintain their reputation for durability, making them preferred solutions for long-lifecycle systems.

About Darlington Transistor Arrays
Darlington transistor arrays integrate multiple high-gain transistor pairs in a single package, enabling efficient control