L7808ACV

Product Overview

Use

It is primarily used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

Input Voltage Range: 10V to 35V
Output Voltage: 8V
Maximum Output Current: 1.5A
Dropout Voltage: 2V
Operating Temperature Range: -40°C to +125°C
Package Type: TO-220
Essence: Linear voltage regulator

Packaging/Quantity

L7808ACV is typically available in a TO-220 package. It is commonly sold in reels or tubes containing multiple units.

Specifications

Input Voltage Range: 10V to 35V
Output Voltage: 8V
Output Current: Up to 1.5A
Dropout Voltage: 2V (maximum)
Line Regulation: 0.04% (typical)
Load Regulation: 0.3% (typical)
Quiescent Current: 6mA (typical)
Ripple Rejection Ratio: 62dB (typical)
Thermal Shutdown Protection: Yes

Detailed Pin Configuration

The L7808ACV voltage regulator has three pins:

Input (VIN): This pin is connected to the input voltage source.
Ground (GND): This pin is connected to the ground reference.
Output (VOUT): This pin provides the regulated output voltage.

Functional Features

Regulates and stabilizes the output voltage to a fixed value of 8V.
Provides protection against thermal overload with its built-in thermal shutdown mechanism.
Offers good ripple rejection, ensuring a stable output even in the presence of input voltage fluctuations.
Low dropout voltage allows for efficient regulation even when the input voltage is close to the desired output voltage.

Advantages and Disadvantages

Advantages

Simple and reliable solution for voltage regulation.
Wide input voltage range allows for flexibility in various applications.
Compact TO-220 package facilitates easy integration into electronic circuits.
Thermal shutdown protection prevents damage due to excessive heat.

Disadvantages

Linear voltage regulators like L7808ACV are less efficient compared to switching regulators.
Dropout voltage of 2V may limit its usability in low voltage applications.

Working Principles

L7808ACV operates on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. The excess voltage is dissipated as heat, which is why it has a dropout voltage.

Detailed Application Field Plans

L7808ACV finds applications in various electronic devices and systems, including but not limited to: - Power supplies - Battery chargers - Audio amplifiers - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L7808ACV are: - LM7808: A popular alternative from Texas Instruments with similar specifications. - MC7808: Another alternative from ON Semiconductor offering comparable performance. - UA7808: An alternative from Fairchild Semiconductor with similar characteristics.

These alternatives can be evaluated based on specific requirements and availability in the market.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L7808ACV v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L7808ACV in technical solutions:

Q: What is L7808ACV? A: L7808ACV is a voltage regulator IC that provides a fixed output voltage of +8V.
Q: What is the maximum input voltage for L7808ACV? A: The maximum input voltage for L7808ACV is 35V.
Q: What is the maximum output current of L7808ACV? A: The maximum output current of L7808ACV is 1.5A.
Q: Can L7808ACV be used to regulate negative voltages? A: No, L7808ACV is designed to regulate positive voltages only.
Q: Is it necessary to use a heatsink with L7808ACV? A: It depends on the power dissipation. If the power dissipation exceeds a certain limit, a heatsink may be required.
Q: Can L7808ACV handle short-circuit conditions? A: Yes, L7808ACV has built-in protection against short-circuits.
Q: Can L7808ACV be used in automotive applications? A: Yes, L7808ACV is suitable for automotive applications as long as the operating conditions are within its specified limits.
Q: Can L7808ACV be used in high-temperature environments? A: Yes, L7808ACV can operate at temperatures up to 125°C.
Q: Can L7808ACV be used in battery-powered applications? A: Yes, L7808ACV can be used in battery-powered applications as long as the input voltage is within its specified range.
Q: Can L7808ACV be used in audio amplifier circuits? A: Yes, L7808ACV can be used to provide a regulated power supply for audio amplifier circuits.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with an expert when designing technical solutions.