NJM78L08L2A

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: Low Dropout, Fixed Output Voltage
Package: TO-92
Essence: Linear Voltage Regulator
Packaging/Quantity: Bulk packaging, typically sold in reels or tubes

Specifications

Input Voltage Range: 10V to 35V
Output Voltage: 8V
Output Current: 100mA
Dropout Voltage: 1.7V (typical)
Line Regulation: 0.04%/V (typical)
Load Regulation: 0.4% (typical)
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM78L08L2A has three pins:

Input (Vin): Connects to the input voltage source.
Ground (GND): Connected to the ground reference.
Output (Vout): Provides the regulated output voltage.

Functional Features

Low dropout voltage: The NJM78L08L2A can regulate the output voltage even when the input voltage is close to the desired output voltage.
Fixed output voltage: The device provides a stable output voltage of 8V.
Thermal shutdown protection: The IC includes built-in thermal protection to prevent damage due to excessive temperature.
Short-circuit current limiting: In case of a short circuit, the device limits the output current to protect itself and the connected components.

Advantages and Disadvantages

Advantages: - Compact and easy to use. - Low dropout voltage allows for efficient regulation. - Suitable for low-power applications. - Affordable and widely available.

Disadvantages: - Limited output current capability. - Not suitable for high-power applications. - Requires external capacitors for stability.

Working Principles

The NJM78L08L2A is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage and adjusting the pass transistor accordingly. This feedback mechanism ensures a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The NJM78L08L2A is commonly used in various electronic devices and applications, including:

Battery-powered devices: Provides a regulated voltage for microcontrollers, sensors, and other low-power components.
Automotive electronics: Used in automotive systems such as dashboard displays, audio systems, and lighting controls.
Industrial control systems: Provides stable voltage for control circuits, sensors, and actuators.
Consumer electronics: Used in portable devices like smartphones, tablets, and digital cameras.

Detailed and Complete Alternative Models

LM7808: Similar specifications and pin configuration, available in different package options.
MC78L08: Equivalent voltage regulator with similar characteristics and pin configuration.
UA78L08: Another alternative with comparable performance and pin compatibility.

(Note: The above list is not exhaustive and there are several other alternatives available in the market.)

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NJM78L08L2A v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NJM78L08L2A in technical solutions:

Q: What is NJM78L08L2A? A: NJM78L08L2A is a voltage regulator IC that provides a fixed output voltage of +8V.
Q: What is the input voltage range for NJM78L08L2A? A: The input voltage range for NJM78L08L2A is typically between +10V and +30V.
Q: What is the maximum output current of NJM78L08L2A? A: The maximum output current of NJM78L08L2A is 100mA.
Q: Can NJM78L08L2A handle reverse polarity protection? A: No, NJM78L08L2A does not have built-in reverse polarity protection. External protection measures should be taken.
Q: Is it possible to use NJM78L08L2A as a step-down voltage regulator? A: No, NJM78L08L2A is a linear voltage regulator and can only provide a fixed output voltage.
Q: What is the dropout voltage of NJM78L08L2A? A: The typical dropout voltage of NJM78L08L2A is around 2V.
Q: Can NJM78L08L2A handle high temperatures? A: Yes, NJM78L08L2A has a maximum operating temperature of 125°C.
Q: Does NJM78L08L2A require any external components for operation? A: Yes, NJM78L08L2A requires input and output capacitors for stability.
Q: Can NJM78L08L2A be used in battery-powered applications? A: Yes, NJM78L08L2A can be used in battery-powered applications as long as the input voltage is within its specified range.
Q: What are some common applications of NJM78L08L2A? A: NJM78L08L2A is commonly used in various electronic devices such as audio amplifiers, sensors, and microcontrollers to provide a stable +8V power supply.