ULQ2004ADG4

Product Overview

Category: Integrated Circuit (IC)

Use: The ULQ2004ADG4 is a high-voltage, high-current Darlington transistor array. It is designed for interfacing between low-level logic signals and higher voltage/current loads in various applications.

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

Package: The ULQ2004ADG4 is available in a 16-pin plastic dual in-line package (PDIP).

Essence: This IC serves as a versatile interface component, providing reliable and efficient control of high-power devices using low-power logic signals.

Packaging/Quantity: The ULQ2004ADG4 is typically sold in reels or tubes containing 25 pieces.

Specifications

• Supply Voltage: 5V - 50V
• Output Current: Up to 500mA per channel
• Input Voltage: 0V - 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: PDIP-16

Detailed Pin Configuration

The ULQ2004ADG4 features a 16-pin configuration with the following pin assignments:

1. Output 1
2. Ground
3. Output 2
4. Output 3
5. Output 4
6. Vcc
7. Input 1
8. Input 2
9. Input 3
10. Input 4
11. Output 5
12. Ground
13. Output 6
14. Output 7
15. Output 8
16. Vcc

Functional Features

• High-Voltage Capability: The ULQ2004ADG4 can handle voltages up to 50V, making it suitable for applications requiring control of high-power devices.
• High-Current Capability: Each channel of the IC can handle currents up to 500mA, enabling it to drive a wide range of loads.
• Darlington Configuration: The Darlington transistor configuration provides high current gain, allowing for efficient amplification of low-level logic signals.
• Built-in Clamp Diodes: The IC incorporates clamp diodes to protect against voltage spikes generated by inductive loads, ensuring reliable operation.
• Low Saturation Voltage: The ULQ2004ADG4 exhibits low saturation voltage, minimizing power dissipation and improving overall efficiency.
• TTL/CMOS Compatibility: The inputs of the IC are compatible with both TTL and CMOS logic levels, facilitating easy integration into various digital systems.

Advantages and Disadvantages

Advantages: - High-voltage and high-current capabilities - Darlington configuration for improved current gain - Built-in clamp diodes for inductive load protection - Low saturation voltage - Wide operating temperature range (-40°C to +85°C) - Versatile compatibility with TTL and CMOS logic levels

Disadvantages: - Limited number of channels (8 channels)

Working Principles

The ULQ2004ADG4 operates based on the principle of Darlington transistor pairs. Each channel consists of two NPN transistors connected in a Darlington configuration. When a logic signal is applied to the input, it controls the base current of the first transistor, which in turn controls the base current of the second transistor. This arrangement allows for high current gain and efficient switching of higher voltage/current loads.

Detailed Application Field Plans

The ULQ2004ADG4 finds applications in various fields, including but not limited to: - Industrial automation - Motor control systems - Robotics - Automotive electronics - Power management - Audio amplification

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ULQ2004ADG4 include: - ULN2003A - ULN2803A - ULN2804A - MC1413B - MC1414B

These alternatives can be considered based on specific requirements and availability.

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