NJM78L15UA-TE2

Product Overview

Category

The NJM78L15UA-TE2 belongs to the category of linear voltage regulators.

Use

This product is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Voltage Regulation: The NJM78L15UA-TE2 provides a fixed output voltage of 15V.
• Low Dropout: This regulator has a low dropout voltage, ensuring efficient performance even with small input-output differentials.
• Current Limiting: It incorporates current limiting protection to prevent damage due to excessive current flow.
• Thermal Shutdown: The device includes thermal shutdown protection, safeguarding against overheating.

Package

The NJM78L15UA-TE2 is available in a TO-220 package, which offers excellent heat dissipation capabilities.

Essence

The essence of this product lies in its ability to provide a stable and regulated 15V output voltage, ensuring reliable operation of electronic devices.

Packaging/Quantity

The NJM78L15UA-TE2 is typically packaged in reels or tubes, containing a specified quantity of units per package.

Specifications

• Input Voltage Range: 17V to 30V
• Output Voltage: 15V (fixed)
• Output Current: Up to 100mA
• Dropout Voltage: 2V (maximum)
• Quiescent Current: 5mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM78L15UA-TE2 features three pins:

1. INPUT (Pin 1): This pin is connected to the input voltage source.
2. GROUND (Pin 2): This pin is connected to the ground reference.
3. OUTPUT (Pin 3): This pin provides the regulated 15V output voltage.

Functional Features

• Voltage Regulation: The NJM78L15UA-TE2 ensures a constant output voltage of 15V, regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting protection, preventing excessive current flow and potential damage to the circuit.
• Thermal Shutdown: The device includes thermal shutdown protection, shutting off the regulator in case of overheating.

Advantages and Disadvantages

Advantages

• Stable Output: Provides a reliable and stable 15V output voltage.
• Low Dropout: Works efficiently even with small input-output voltage differentials.
• Compact Design: The TO-220 package allows for easy integration into various electronic circuits.
• Current and Thermal Protection: Incorporates current limiting and thermal shutdown features for enhanced safety.

Disadvantages

• Limited Output Current: The NJM78L15UA-TE2 can supply a maximum output current of 100mA, which may not be sufficient for high-power applications.
• Fixed Output Voltage: The output voltage is fixed at 15V, limiting its versatility in certain applications.

Working Principles

The NJM78L15UA-TE2 operates based on the principle of linear voltage regulation. It utilizes a series pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This feedback mechanism ensures a constant 15V output voltage, compensating for variations in the input voltage.

Detailed Application Field Plans

The NJM78L15UA-TE2 finds application in various electronic systems that require a stable 15V power supply. Some common application fields include:

1. Automotive Electronics: Used in automotive systems such as engine control units, infotainment systems, and lighting modules.
2. Industrial Control Systems: Employed in industrial automation, motor control, and power supply units.
3. Consumer Electronics: Integrated into audio amplifiers, televisions, and home appliances.
4. Communication Systems: Utilized in wireless routers, base stations, and network switches.
5. Medical Devices: Incorporated into medical equipment like patient monitors and diagnostic devices.

Detailed and Complete Alternative Models

1. LM7815: A popular alternative from Texas Instruments with similar specifications and pin configuration.
2. MC78L15: An alternative from ON Semiconductor offering comparable performance and compatibility.
3. UA7815: Another alternative from Fairchild Semiconductor, providing a fixed 15V output voltage.

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

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