L7808CP

Basic Information Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize the output voltage in electronic circuits
• Characteristics: Fixed output voltage of 8V, low dropout voltage, high current capability
• Package: TO-220
• Essence: Integrated circuit (IC)
• Packaging/Quantity: Typically sold in packs of 10 or more

Specifications

• Input Voltage Range: Up to 35V
• Output Voltage: 8V
• Output Current: Up to 1.5A
• Dropout Voltage: 2V (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L7808CP has three pins: 1. Input (Vin): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference of the circuit. 3. Output (Vout): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: The L7808CP ensures a stable output voltage of 8V regardless of variations in the input voltage.
• Overcurrent Protection: It includes built-in protection against excessive current flow, safeguarding the connected components.
• Thermal Shutdown: In case of overheating, the device automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - Easy to use and integrate into various electronic circuits. - High current capability allows it to power multiple components simultaneously. - Low dropout voltage minimizes power dissipation.

Disadvantages: - Fixed output voltage limits flexibility in certain applications. - Requires external capacitors for stability.

Working Principles

The L7808CP is a linear voltage regulator that uses a series pass transistor to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to regulate the output.

Detailed Application Field Plans

The L7808CP is commonly used in various electronic applications, including: 1. Power Supply Units (PSUs): It provides a stable 8V output for powering microcontrollers, sensors, and other components. 2. Audio Amplifiers: The regulator ensures a consistent voltage supply to audio amplification circuits, reducing distortion. 3. Battery Charging Circuits: It regulates the charging voltage to prevent overcharging and protect the battery.

Detailed and Complete Alternative Models

• LM7808: Similar to L7808CP, but available in different packages such as TO-220, TO-92, and SOT-89.
• UA7808: Another alternative with similar specifications and pin configuration.

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