L7815ABD2T-TR

Product Overview

Category

L7815ABD2T-TR belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

• Input Voltage Range: 17V to 35V
• Output Voltage: 15V
• Maximum Output Current: 1.5A
• Dropout Voltage: 2V
• Operating Temperature Range: -40°C to +125°C
• Package Type: D2PAK (TO-263)
• Mounting Style: Surface Mount
• RoHS Compliant: Yes

Packaging/Quantity

The L7815ABD2T-TR voltage regulator is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 17V to 35V
• Output Voltage: 15V
• Output Current: Up to 1.5A
• Dropout Voltage: 2V
• Line Regulation: ±0.04%
• Load Regulation: ±0.1%
• Ripple Rejection Ratio: 62dB
• Thermal Resistance Junction-to-Ambient: 50°C/W
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The L7815ABD2T-TR voltage regulator has three pins:

1. Input (VIN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (VOUT): This pin provides the regulated output voltage.

Functional Features

• Regulates the input voltage to a stable 15V output.
• Provides protection against overcurrent and overheating.
• Low dropout voltage ensures efficient power conversion.
• High ripple rejection ratio minimizes output voltage fluctuations.
• RoHS compliant, ensuring environmental friendliness.

Advantages and Disadvantages

Advantages

• High output current capability of up to 1.5A.
• Wide operating temperature range allows for versatile applications.
• Surface mount package enables easy integration into PCB designs.
• Excellent line and load regulation for precise voltage control.

Disadvantages

• Dropout voltage of 2V may limit its use in low voltage applications.
• Thermal resistance may require additional heat sinking in high-power applications.

Working Principles

The L7815ABD2T-TR voltage regulator operates on the principle of linear regulation. It uses a series pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the resistance accordingly to maintain a stable 15V output.

Detailed Application Field Plans

The L7815ABD2T-TR voltage regulator finds extensive application in various electronic devices and systems, including:

1. Power supplies for industrial equipment.
2. Automotive electronics.
3. Audio amplifiers.
4. Battery charging circuits.
5. Microcontroller-based systems.
6. Communication equipment.

Detailed and Complete Alternative Models

1. LM7815: This is a popular alternative model from Texas Instruments with similar specifications and pin configuration.
2. MC7815: Another alternative model from ON Semiconductor, offering comparable performance and compatibility.
3. UA7815: A voltage regulator from Fairchild Semiconductor, providing similar functionality and characteristics.

These alternative models can be considered as substitutes for the L7815ABD2T-TR, depending on specific requirements and availability.

In conclusion, the L7815ABD2T-TR voltage regulator is a reliable and widely used component that provides stable and regulated 15V output voltage. Its high output current capability, wide operating temperature range, and excellent line/load regulation make it suitable for various applications in different industries. However, its dropout voltage and thermal resistance should be taken into consideration when selecting the appropriate voltage regulator for specific low voltage or high-power applications.