ULQ2004ATDRG4Q1

Product Overview

Category: Integrated Circuit (IC)

Use: ULQ2004ATDRG4Q1 is a high-voltage, high-current Darlington transistor array. It is commonly used for driving inductive loads such as relays, solenoids, and stepper motors.

Characteristics: - High voltage capability (up to 50V) - High current capability (up to 500mA per channel) - Built-in clamp diodes for inductive load protection - Low saturation voltage - TTL/CMOS compatible inputs

Package: ULQ2004ATDRG4Q1 is available in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of ULQ2004ATDRG4Q1 lies in its ability to provide a convenient and efficient solution for driving high-power loads with minimal external components.

Packaging/Quantity: ULQ2004ATDRG4Q1 is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage: 3V to 15V
• Output Voltage: Up to 50V
• Output Current: Up to 500mA per channel
• Input Logic Levels: TTL/CMOS compatible
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The pin configuration of ULQ2004ATDRG4Q1 is as follows:

__ __ __ __ __ __ __ __ | 1| | 2| | 3| | 4| | 5| | 6| | 7| | 8| |__| |__| |__| |__| |__| |__| |__| |__| __ __ __ __ __ __ __ __ |16| |15| |14| |13| |12| |11| |10| | 9| |__| |__| |__| |__| |__| |__| |__| |__|

Functional Features

• ULQ2004ATDRG4Q1 consists of seven Darlington transistor pairs, each capable of driving loads up to 500mA.
• The built-in clamp diodes protect the transistors from voltage spikes generated by inductive loads.
• The TTL/CMOS compatible inputs allow easy interfacing with microcontrollers and other digital logic circuits.
• The low saturation voltage ensures minimal power dissipation and efficient operation.

Advantages and Disadvantages

Advantages: - High-voltage and high-current capability make it suitable for driving a wide range of inductive loads. - Integrated clamp diodes provide protection against voltage spikes. - Compact SOIC package allows for easy integration into various electronic systems. - TTL/CMOS compatibility simplifies interfacing with digital circuits.

Disadvantages: - Limited number of channels (seven) may not be sufficient for applications requiring more outputs. - Higher cost compared to individual discrete transistors for low-power applications.

Working Principles

ULQ2004ATDRG4Q1 operates on the principle of Darlington transistor pairs. Each pair consists of two transistors connected in a configuration that provides high current gain. When an input signal is applied, the corresponding transistor pair turns on, allowing current to flow through the load. The built-in clamp diodes protect the transistors from voltage spikes generated by the inductive load when the current is switched off.

Application Field Plans

ULQ2004ATDRG4Q1 finds applications in various fields, including: - Industrial automation - Automotive systems - Robotics - Home appliances - Medical equipment

Alternative Models

Some alternative models that can be considered as alternatives to ULQ2004ATDRG4Q1 are: - ULN2003A: Similar functionality with a different pin configuration. - L293D: Dual H-bridge motor driver IC with additional features. - TIP120: High-power Darlington transistor for individual use.

These alternative models offer similar capabilities and can be chosen based on specific application requirements.

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