NJM79L15UA-TE2

Product Overview

Category

NJM79L15UA-TE2 belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: -35V to -10V
• Output Voltage: -15V
• Maximum Output Current: 100mA
• Dropout Voltage: 1.7V (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-92
• Essence: Linear voltage regulator

Packaging/Quantity

The NJM79L15UA-TE2 is typically packaged in reels or tubes, with a quantity of 2000 units per reel/tube.

Specifications

• Input Voltage Range: -35V to -10V
• Output Voltage: -15V
• Output Current: Up to 100mA
• Dropout Voltage: 1.7V (typical)
• Line Regulation: ±0.5%
• Load Regulation: ±1.5%
• Quiescent Current: 5mA (typical)
• Ripple Rejection Ratio: 60dB (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-92

Detailed Pin Configuration

The NJM79L15UA-TE2 has three pins:

1. Pin 1: Input (VIN) - Connects to the input voltage source.
2. Pin 2: Ground (GND) - Connected to the ground reference.
3. Pin 3: Output (VOUT) - Provides the regulated output voltage.

Functional Features

• Voltage Regulation: The NJM79L15UA-TE2 ensures a stable output voltage of -15V regardless of variations in the input voltage.
• Overcurrent Protection: It incorporates overcurrent protection to prevent damage to the device and the connected circuitry.
• Thermal Shutdown: The regulator includes a thermal shutdown feature that activates when the temperature exceeds the safe operating range, protecting the device from overheating.

Advantages and Disadvantages

Advantages

• Compact Size: The TO-92 package makes it suitable for space-constrained applications.
• Wide Operating Temperature Range: It can operate in extreme temperature conditions, ranging from -40°C to +125°C.
• Low Dropout Voltage: The low dropout voltage of 1.7V ensures efficient regulation even with low input voltages.

Disadvantages

• Limited Output Current: The NJM79L15UA-TE2 has 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 flexibility in certain applications.

Working Principles

The NJM79L15UA-TE2 is a linear voltage regulator based on the negative voltage regulator IC design. It utilizes a series pass transistor to regulate the output voltage. The input voltage is stepped down to the desired output voltage by dissipating excess energy as heat. The internal circuitry monitors the output voltage and adjusts the pass transistor accordingly to maintain a stable -15V output.

Detailed Application Field Plans

The NJM79L15UA-TE2 finds applications in various electronic circuits where a stable -15V voltage supply is required. Some common application fields include:

1. Audio Amplifiers: It can be used to provide a regulated power supply for audio amplifiers, ensuring consistent performance.
2. Instrumentation Systems: The regulator is suitable for powering analog and digital instrumentation systems, maintaining accurate measurements.
3. Industrial Control Systems: It can be employed in industrial control systems to regulate voltage for sensors, actuators, and other components.
4. Automotive Electronics: The NJM79L15UA-TE2 is used in automotive electronics for voltage regulation, such as in-car entertainment systems and lighting controls.

Detailed and Complete Alternative Models

1. LM7915: This is a popular alternative to the NJM79L15UA-TE2, offering similar specifications and performance.
2. MC79L15: Another alternative with comparable characteristics, widely available in the market.
3. UA7915: A compatible model that can be used as a substitute for the NJM79L15UA-TE2.

These alternative models provide similar functionality and can be used as replacements based on specific requirements.

In conclusion, the NJM79L15UA-TE2 is a voltage regulator designed to provide a stable -15V output voltage. It offers advantages such as compact size, wide operating temperature range, and low dropout voltage. However, it has limitations in terms of maximum output current and fixed output voltage. The regulator finds applications in audio amplifiers, instrumentation systems, industrial control systems, and automotive electronics. Alternative models like LM7915, MC79L15, and UA