ULN2004AINSRG4

Product Overview

Use

It is commonly used as a driver for relays, lamps, solenoids, and other high-power peripheral devices in industrial and consumer applications.

Characteristics

High-voltage and high-current capability
Integrated suppression diodes for inductive loads
Compatible with various logic systems
Wide operating voltage range
Thermal shutdown protection

Package

The ULN2004AINSRG4 comes in a 16-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence

This product serves as an efficient and reliable interface between low-level logic signals and high-power loads.

Packaging/Quantity

The ULN2004AINSRG4 is typically available in reels or tubes containing a quantity of 2500 units per package.

Specifications

Maximum Output Current: 500 mA per channel
Maximum Output Voltage: 50 V
Input Voltage Range: 3 V to 15 V
Operating Temperature Range: -20°C to 85°C
Power Dissipation: 2.5 W

Detailed Pin Configuration

Input 1
Ground
Output 1
Input 2
Output 2
Input 3
Output 3
Input 4
Output 4
Input 5
Output 5
Input 6
Output 6
Input 7
Output 7
Vcc

Functional Features

Each channel equipped with a Darlington pair for high current capability
Common-cathode clamp diodes for switching inductive loads
TTL, CMOS, and PMOS compatible inputs

Advantages

Simplifies interfacing between low-level logic and high-power loads
Protects microcontrollers from back EMF generated by inductive loads
Compact and cost-effective solution for driving multiple loads

Disadvantages

Limited maximum output voltage compared to some alternatives
Higher power dissipation at maximum load conditions

Working Principles

The ULN2004AINSRG4 operates by amplifying the input signals and providing sufficient current to drive the connected loads. The integrated diodes protect the driver and the controlling circuitry from voltage spikes generated by inductive loads.

Detailed Application Field Plans

Industrial automation: Control of motors, valves, and actuators
Automotive electronics: Driving automotive relays and solenoids
Home appliances: Switching high-power components in appliances
Robotics: Controlling motors and electromechanical devices

Detailed and Complete Alternative Models

ULN2803A: Higher output voltage capability
MC1413: Lower power dissipation
L293D: Integrated H-bridge driver functionality

In conclusion, the ULN2004AINSRG4 is a versatile and reliable driver IC suitable for a wide range of applications requiring the control of high-power loads. Its integration of Darlington pairs and suppression diodes makes it an essential component in various electronic systems.

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