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MC78M08CDTG
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MC78M08CDTG

Product Overview

  • Category: Voltage Regulator
  • Use: To regulate and stabilize the output voltage in electronic circuits
  • Characteristics:
    • Provides a fixed output voltage of +8V
    • Low dropout voltage
    • High ripple rejection ratio
    • Thermal shutdown protection
  • Package: TO-252-3 (DPAK)
  • Essence: Integrated circuit voltage regulator
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 10V to 35V
  • Output Voltage: +8V
  • Output Current: Up to 500mA
  • Dropout Voltage: 2V (typical)
  • Ripple Rejection Ratio: 60dB (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. Input Voltage (VIN)
  2. Ground (GND)
  3. Output Voltage (VOUT)

Functional Features

  • Regulates the input voltage to a stable +8V output
  • Protects against thermal overload with built-in thermal shutdown
  • Provides low dropout voltage for efficient operation
  • Filters out noise and ripple from the input voltage with high ripple rejection ratio

Advantages

  • Compact and easy to integrate into electronic circuits
  • Wide input voltage range allows for versatile applications
  • Reliable thermal shutdown protection prevents damage due to overheating
  • Low dropout voltage minimizes power dissipation and improves efficiency

Disadvantages

  • Limited output current capacity (up to 500mA)
  • Requires external capacitors for stability and filtering

Working Principles

The MC78M08CDTG 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 to maintain a stable +8V output. The regulator also includes thermal shutdown protection, which shuts off the pass transistor if the temperature exceeds a certain threshold.

Detailed Application Field Plans

The MC78M08CDTG is commonly used in various electronic applications that require a regulated +8V power supply. Some typical application fields include:

  1. Power supply for microcontrollers and digital logic circuits
  2. Voltage reference for analog circuits
  3. Power supply for audio amplifiers and other audio equipment
  4. Battery charging circuits
  5. Automotive electronics

Detailed and Complete Alternative Models

  • LM7808: Similar voltage regulator with a different package (TO-220)
  • UA78M08: Equivalent voltage regulator from another manufacturer
  • L78M08: Another alternative with similar specifications and pin configuration

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MC78M08CDTG en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MC78M08CDTG in technical solutions:

  1. Q: What is MC78M08CDTG? A: MC78M08CDTG is a linear voltage regulator that provides a fixed output voltage of +8V.

  2. Q: What is the input voltage range for MC78M08CDTG? A: The input voltage range for MC78M08CDTG is typically between +9V and +35V.

  3. Q: What is the maximum output current of MC78M08CDTG? A: The maximum output current of MC78M08CDTG is 500mA.

  4. Q: Can MC78M08CDTG handle higher input voltages than +35V? A: No, MC78M08CDTG is not designed to handle input voltages higher than +35V. It may get damaged if exposed to higher voltages.

  5. Q: Is MC78M08CDTG suitable for both AC and DC input voltages? A: Yes, MC78M08CDTG can accept both AC and DC input voltages within its specified range.

  6. Q: Does MC78M08CDTG require any external components for operation? A: Yes, MC78M08CDTG requires input and output capacitors for stability and filtering purposes. Refer to the datasheet for recommended values.

  7. Q: Can MC78M08CDTG be used in automotive applications? A: Yes, MC78M08CDTG is suitable for automotive applications as long as the input voltage does not exceed its specified range.

  8. Q: What is the thermal resistance of MC78M08CDTG? A: The thermal resistance of MC78M08CDTG is typically around 50°C/W, which determines its ability to dissipate heat.

  9. Q: Can MC78M08CDTG be used in high-temperature environments? A: MC78M08CDTG has a maximum operating temperature of +125°C, so it can be used in moderately high-temperature environments.

  10. Q: Is MC78M08CDTG available in different package options? A: Yes, MC78M08CDTG is available in various package options such as TO-220, TO-252, and DPAK, allowing flexibility in design and mounting options.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for MC78M08CDTG.