MC7805ABD2TR4

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Fixed output voltage of 5V - Maximum output current of 1A - Low dropout voltage - Thermal shutdown protection - Short circuit current limiting - Output voltage accuracy within ±2%

Package: TO-252-3 (DPAK)

Essence: The MC7805ABD2TR4 is a linear voltage regulator that provides a stable 5V output voltage from a higher input voltage. It is commonly used to regulate the voltage in various electronic devices.

Packaging/Quantity: The MC7805ABD2TR4 is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 7V to 25V
• Output Voltage: 5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.04%/V
• Load Regulation: 0.1%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MC7805ABD2TR4 has three pins:

1. Input (IN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (OUT): This pin provides the regulated 5V output voltage.

Functional Features

• Voltage Regulation: The MC7805ABD2TR4 maintains a constant output voltage of 5V, regardless of changes in the input voltage or load conditions.
• Thermal Shutdown Protection: In case of excessive temperature, the regulator shuts down to prevent damage.
• Short Circuit Current Limiting: The device limits the output current in case of a short circuit, protecting both the regulator and the connected circuitry.

Advantages and Disadvantages

Advantages: - Simple and easy to use. - Provides a stable output voltage. - Low dropout voltage allows for efficient regulation. - Thermal shutdown protection prevents overheating. - Short circuit current limiting protects the circuit.

Disadvantages: - Linear regulators are less efficient compared to switching regulators. - The maximum output current is limited to 1A.

Working Principles

The MC7805ABD2TR4 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant 5V output. The excess voltage is dissipated as heat, resulting in a dropout voltage.

Detailed Application Field Plans

The MC7805ABD2TR4 is widely used in various electronic devices and applications, including but not limited to: - Power supplies - Battery chargers - Audio amplifiers - Microcontroller circuits - Arduino projects - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the MC7805ABD2TR4 include: - LM7805 - UA7805 - L78M05 - NCV7805 - KA7805

These alternatives provide similar functionality and can be used as replacements depending on specific requirements.

In conclusion, the MC7805ABD2TR4 is a popular linear voltage regulator that provides a stable 5V output voltage. Its simplicity, thermal protection, and short circuit current limiting make it suitable for a wide range of applications. However, its limited output current and lower efficiency compared to switching regulators should be considered when selecting the appropriate voltage regulator for a specific project or device.