ULN2004A - STMicroelectronics

Manufacturer Part Number

ULN2004A

Manufacturer

stmicroelectronics

Introduction

The ULN2004A is a high-voltage, high-current darlington driver that consists of seven NPN darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. It is encapsulated in a 16-DIP package.

Product Features and Performance

Seven darlington pairs

Output voltage upto 50V

Output current per channel is 500mA

Capable of driving relays and solenoids

Includes clamp diodes for switching inductive loads

Product Advantages

High current and voltage capacity is suitable for directly driving a wide range of inductive loads.

Built-in clamp diodes mitigate voltage spikes when switching inductive loads, enhancing product reliability.

Multiple outputs allow controlling up to seven different devices.

Key Technical Parameters

Number of Outputs: 7

Output Configuration: Low Side

Output Type: NPN

Voltage Load: 50V (Max)

Current Output (Max): 500mA

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Integrated clamp diodes provide protection against output voltage spikes, ensuring safe operations under a range of conditions.

Compatibility

Interface type is parallel, allowing easy integration with various microcontrollers and other logic controllers.

Application Areas

Suitable for driving relays, solenoids, and other actuators within automotive systems, robotics, and industrial control systems.

Product Lifecycle

The product status is Active, meaning it is currently being produced and there are no imminent plans for discontinuation. Therefore, replacements and upgrades are readily available.

Several Key Reasons to Choose This Product

High-voltage and high-current handling capability makes it ideal for directly driving relays and solenoids without the need for extra driver components.

Integration of seven darlington pairs maximizes utility while saving space and simplifying designs.

Integrated clamp diodes protect against inductive voltage spikes, improving reliability and extending lifecycle.

Its compatibility with a wide operating temperature range makes it suitable for a variety of harsh environments.

Simple parallel interface ensures ease of interfacing with control systems.