NJM79L08A

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics:
- Low dropout voltage
- Output current up to 100mA
- Fixed output voltage of -8V
Package: TO-92, SOT-89, or DPAK
Essence: Linear voltage regulator
Packaging/Quantity: Available in reels or tubes, quantity depends on supplier

Specifications

Input Voltage Range: -10V to -35V
Output Voltage: -8V (fixed)
Dropout Voltage: 1.5V (maximum)
Output Current: Up to 100mA
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM79L08A has three pins:

Input (VIN): Connects to the input voltage source.
Ground (GND): Connected to the ground reference.
Output (VOUT): Provides the regulated -8V output.

Functional Features

Voltage Regulation: The NJM79L08A regulates the input voltage to a fixed -8V output.
Low Dropout Voltage: It maintains regulation even when the input voltage is close to the output voltage.
Short Circuit Protection: The IC includes internal current limiting and thermal shutdown protection.
Reverse Polarity Protection: The device is protected against reverse polarity connection.

Advantages and Disadvantages

Advantages: - Compact size and easy to use. - Low dropout voltage allows for efficient regulation. - Internal protection features enhance reliability.

Disadvantages: - Limited output current capability (up to 100mA). - Fixed output voltage may not be suitable for all applications.

Working Principles

The NJM79L08A is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage to a reference voltage and adjusts the pass transistor accordingly to maintain a stable -8V output.

Detailed Application Field Plans

The NJM79L08A is commonly used in various applications, including: - Power supplies for audio amplifiers - Battery-powered devices - Industrial control systems - Automotive electronics - Instrumentation and measurement equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to NJM79L08A are: - LM79L08 - MC79L08 - UA79L08 - L79L08

These models offer similar functionality and characteristics, providing options for different package types or manufacturers.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням NJM79L08A у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of NJM79L08A in technical solutions:

Q: What is NJM79L08A? A: NJM79L08A is a voltage regulator IC that provides a fixed output voltage of -8V.
Q: What is the input voltage range for NJM79L08A? A: The input voltage range for NJM79L08A is typically between -10V and -35V.
Q: What is the maximum output current of NJM79L08A? A: The maximum output current of NJM79L08A is 100mA.
Q: Can NJM79L08A be used as a positive voltage regulator? A: No, NJM79L08A is specifically designed as a negative voltage regulator.
Q: What are the typical applications of NJM79L08A? A: NJM79L08A is commonly used in various electronic circuits where a stable -8V power supply is required, such as audio amplifiers, instrumentation, and industrial control systems.
Q: How does NJM79L08A handle thermal protection? A: NJM79L08A incorporates built-in thermal shutdown circuitry to protect itself from overheating.
Q: Does NJM79L08A require any external components for operation? A: Yes, NJM79L08A requires a minimum of two external capacitors (input and output) for proper stability and filtering.
Q: What is the typical dropout voltage of NJM79L08A? A: The typical dropout voltage of NJM79L08A is around 2V.
Q: Can NJM79L08A handle short-circuit conditions? A: Yes, NJM79L08A has built-in current limiting and short-circuit protection to prevent damage under such conditions.
Q: Is NJM79L08A available in different package options? A: Yes, NJM79L08A is available in various package options, including TO-92, SOT-89, and DPAK, allowing flexibility in PCB design and mounting.

Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for NJM79L08A.