MC78M24BTG

Product Overview

Use

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

Characteristics

Input Voltage Range: 25V to 35V
Output Voltage: 24V
Maximum Output Current: 500mA
Package Type: TO-220
Operating Temperature Range: -40°C to +125°C
Dropout Voltage: 2V (typical)
Line Regulation: 0.04% (typical)
Load Regulation: 0.1% (typical)

Package and Quantity

The MC78M24BTG comes in a TO-220 package. It is typically sold in reels or tubes containing multiple units.

Specifications

Input Voltage Range: 25V to 35V
Output Voltage: 24V
Output Current: 500mA
Dropout Voltage: 2V (typical)
Line Regulation: 0.04% (typical)
Load Regulation: 0.1% (typical)
Operating Temperature Range: -40°C to +125°C
Package Type: TO-220

Pin Configuration

The MC78M24BTG has three pins:

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

Functional Features

Voltage Regulation: The MC78M24BTG ensures a stable output voltage of 24V, regardless of variations in the input voltage.
Overcurrent Protection: It includes built-in protection against excessive current, safeguarding the circuit from damage.
Thermal Shutdown: In case of overheating, the regulator shuts down to prevent damage.
Low Dropout Voltage: The dropout voltage of 2V ensures efficient regulation even when the input voltage is close to the output voltage.

Advantages and Disadvantages

Advantages

Reliable voltage regulation
Overcurrent protection
Thermal shutdown feature
Low dropout voltage

Disadvantages

Limited maximum output current (500mA)
Requires external components for proper operation

Working Principles

The MC78M24BTG is a linear voltage regulator that uses a series 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 output voltage. The regulator operates by dissipating excess voltage as heat, which is why it has a maximum operating temperature limit.

Application Field Plans

The MC78M24BTG is commonly used in various electronic applications, including:

Power Supplies: It can be used to regulate the voltage in power supply circuits, ensuring a stable output for other components.
Audio Amplifiers: The regulator helps maintain a consistent voltage supply to audio amplifiers, preventing distortion and improving sound quality.
Industrial Control Systems: It finds application in industrial control systems where stable voltage levels are crucial for reliable operation.
Automotive Electronics: The regulator is suitable for automotive electronics, providing regulated voltage to various components such as sensors and microcontrollers.

Alternative Models

Some alternative models to MC78M24BTG include:

LM7805: A popular 5V linear voltage regulator.
LM317: A versatile adjustable voltage regulator capable of providing various output voltages.
LT1084: A high-current linear voltage regulator with low dropout voltage.

These alternatives offer similar functionality but may have different specifications and package types.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC78M24BTG v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MC78M24BTG in technical solutions:

Q: What is MC78M24BTG? A: MC78M24BTG is a voltage regulator IC that provides a fixed output voltage of +24V.
Q: What is the input voltage range for MC78M24BTG? A: The input voltage range for MC78M24BTG is typically between +26V and +35V.
Q: What is the maximum output current of MC78M24BTG? A: The maximum output current of MC78M24BTG is 500mA.
Q: Can MC78M24BTG handle higher input voltages than +35V? A: No, exceeding the maximum input voltage range can damage the IC. It is recommended to use a voltage within the specified range.
Q: Is MC78M24BTG suitable for both AC and DC input voltages? A: Yes, MC78M24BTG can accept both AC and DC input voltages.
Q: Does MC78M24BTG require any external components for operation? A: Yes, MC78M24BTG requires an input capacitor and an output capacitor for stable operation. Refer to the datasheet for recommended values.
Q: Can MC78M24BTG be used in automotive applications? A: Yes, MC78M24BTG is suitable for automotive applications as it can withstand high temperatures and has built-in protection features.
Q: What is the thermal resistance of MC78M24BTG? A: The thermal resistance of MC78M24BTG is typically around 50°C/W.
Q: Can MC78M24BTG be used in high-frequency applications? A: Yes, MC78M24BTG can be used in high-frequency applications as it has a fast transient response and low output voltage ripple.
Q: Is MC78M24BTG available in different package options? A: Yes, MC78M24BTG is available in various package options such as TO-220, SOT-223, and DPAK.