L78M24ACDT-TR

Product Overview

Category

L78M24ACDT-TR belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: The L78M24ACDT-TR comes in a TO-252 package.
• Essence: It is an integrated circuit (IC) voltage regulator.
• Packaging/Quantity: The product is typically packaged in reels and available in large quantities.

Specifications

The L78M24ACDT-TR has the following specifications:

• Output Voltage: 24V
• Input Voltage Range: 25V - 35V
• Output Current: Up to 500mA
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The L78M24ACDT-TR has three pins, each serving a specific purpose:

1. Input Pin (VIN): This pin is used to connect the input voltage source.
2. Ground Pin (GND): This pin is connected to the ground reference of the circuit.
3. Output Pin (VOUT): The regulated output voltage is obtained from this pin.

Functional Features

The L78M24ACDT-TR offers the following functional features:

• Voltage Regulation: It provides a stable output voltage of 24V, regardless of input voltage fluctuations.
• Overcurrent Protection: The device incorporates overcurrent protection to prevent damage to the circuitry.
• Thermal Shutdown: In case of excessive temperature, the regulator shuts down to avoid overheating.
• Short Circuit Protection: The L78M24ACDT-TR safeguards against short circuits, ensuring the safety of the circuit.

Advantages and Disadvantages

Advantages

• Reliable Voltage Regulation: The L78M24ACDT-TR ensures a stable output voltage, making it suitable for sensitive electronic components.
• Overcurrent and Short Circuit Protection: The built-in protection features prevent damage to the circuitry.
• Wide Operating Temperature Range: It can operate in extreme temperature conditions.

Disadvantages

• Dropout Voltage: The 2V dropout voltage may limit its use in low voltage applications.
• Limited Output Current: The maximum output current of 500mA may not be sufficient for high-power applications.

Working Principles

The L78M24ACDT-TR operates on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage. The input voltage is compared to a reference voltage, and the difference is amplified to control the pass transistor. This feedback loop ensures that the output voltage remains constant despite variations in the input voltage.

Detailed Application Field Plans

The L78M24ACDT-TR finds application in various fields, including:

1. Power Supply Units: It is commonly used in power supply units to provide regulated voltage to different components.
2. Industrial Automation: The regulator is utilized in industrial automation systems to maintain stable voltage levels.
3. Automotive Electronics: It is employed in automotive electronics to regulate voltage for various components such as sensors and actuators.
4. Telecommunications: The L78M24ACDT-TR is used in telecommunications equipment to ensure reliable voltage regulation.

Detailed and Complete Alternative Models

Some alternative models to the L78M24ACDT-TR include:

1. LM317: A versatile adjustable voltage regulator with a wide input voltage range.
2. LM7805: A fixed 5V voltage regulator commonly used in electronic circuits.
3. LT1084: A high-current adjustable voltage regulator suitable for demanding applications.
4. LM1117: A low dropout voltage regulator available in various fixed output voltages.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the L78M24ACDT-TR is a voltage regulator that provides stable 24V output voltage. It offers overcurrent protection, thermal shutdown, and short circuit protection. While it has advantages such as reliable voltage regulation and wide operating temperature range, it also has limitations like dropout voltage and limited output current. The regulator finds applications in power supply units, industrial automation, automotive electronics, and telecommunications. Additionally, alternative models like LM317, LM7805, LT1084, and LM1117 provide users with options based on their specific needs.