ULN2003AN - Texas Instruments

Manufacturer Part Number

ULN2003AN

Manufacturer

Texas Instruments

Introduction

The ULN2003AN is an array of seven NPN Darlington transistors capable of high voltage and current driving applications.

Product Features and Performance

Seven Darlingtons per package

Output current 500 mA per driver

Output voltage 50V (Max)

Integrated suppression diodes for inductive loads

Outputs can be paralleled for higher current

TTL/CMOS/PMOS/DTL compatible inputs

Input pins placed opposite to output pins to simplify layout

Product Advantages

Versatile and robust driver solution

Can drive a wide range of loads including solenoids, relays, LEDs, lamps, and motors

Ease of use with various control logic standards

Key Technical Parameters

Number of Outputs: 7

Ratio - Input:Output: 1:1

Output Configuration: Low Side

Output Type: Darlington

Interface: Parallel

Voltage - Load: 50V (Max)

Current - Output (Max): 500mA

Operating Temperature: -40°C to 70°C (TA)

Quality and Safety Features

Integrated suppression diodes protect against inductive voltage spikes

Designed to operate from -40°C to 70°C, ensuring reliability in varying environmental conditions

Compatibility

Compatible with a wide range of microcontrollers and logic interfaces due to inverting input type

Application Areas

Relay drivers

Stepper and DC motor drivers

Lamp drivers

Display drivers (LED and gas discharge)

Line drivers

Logic buffers

Product Lifecycle

Product Status: Active

Not reported as nearing discontinuation

Replacements or upgrades might be available as newer designs from Texas Instruments

Several Key Reasons to Choose This Product

Reliable high-voltage, high-current switching capability

Affordable and robust solution for diverse power management needs

Direct interfacing to logic control signals

Simple integration into a wide range of electrical circuits

Availability in tube packaging for ease of manual handling and insertion during prototyping and manufacturing

Proven market longevity and support from Texas Instruments