AN78L15ME1

Product Overview

Category

AN78L15ME1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• AN78L15ME1 is a fixed positive voltage regulator.
• It provides a regulated output voltage of +15V.
• The device operates within a specified input voltage range.
• It offers protection against overcurrent and thermal overload.

Package

AN78L15ME1 comes in a TO-252 package, also known as DPAK (Plastic Packaged Power Transistor).

Essence

The essence of AN78L15ME1 lies in its ability to provide a stable and regulated output voltage.

Packaging/Quantity

AN78L15ME1 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 17V to 35V
• Output Voltage: +15V
• Output Current: Up to 100mA
• Dropout Voltage: 2V (max)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

AN78L15ME1 has three pins:

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

Functional Features

• Regulated Output: AN78L15ME1 ensures a constant output voltage of +15V regardless of input variations.
• Overcurrent Protection: The device incorporates overcurrent protection to safeguard the circuit from excessive current flow.
• Thermal Overload Protection: AN78L15ME1 includes thermal overload protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages

• Stable Output: AN78L15ME1 provides a stable and regulated output voltage, ensuring reliable performance of connected components.
• Compact Size: The TO-252 package offers a compact form factor, making it suitable for space-constrained applications.
• Overcurrent and Thermal Protection: The built-in protection features enhance the device's durability and protect the circuitry.

Disadvantages

• Limited Output Current: AN78L15ME1 has a maximum output current of 100mA, which may not be sufficient for high-power applications.
• Dropout Voltage: The dropout voltage of 2V can result in some power loss, especially when operating with low input voltages.

Working Principles

AN78L15ME1 operates based on the principle of linear voltage regulation. It utilizes an internal voltage reference and feedback mechanism to maintain a constant output voltage. The device compares the output voltage with the reference voltage and adjusts the internal circuitry accordingly to regulate the output.

Detailed Application Field Plans

AN78L15ME1 finds application in various electronic circuits where a stable +15V voltage is required. Some common application fields include:

1. Power Supply Units (PSUs): AN78L15ME1 can be used in PSUs to provide a regulated +15V rail for powering different components.
2. Audio Amplifiers: It can be employed in audio amplifiers to ensure a consistent voltage supply for optimal audio performance.
3. Industrial Control Systems: AN78L15ME1 is suitable for industrial control systems that require a stable voltage source for controlling various processes.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AN78L15ME1 are:

1. LM7815: A popular voltage regulator from Texas Instruments with a fixed +15V output.
2. MC7815: A voltage regulator from ON Semiconductor, providing a regulated +15V output.
3. UA7815: Another voltage regulator from Texas Instruments, offering a fixed +15V output.

These alternative models can be considered based on specific requirements and availability.

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