Rohm Semiconductor
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BA78M12CP-E2
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BA78M12CP-E2

Product Overview

Category

BA78M12CP-E2 belongs to the category of voltage regulators.

Use

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

Characteristics

  • Input Voltage Range: 14V to 35V
  • Output Voltage: +12V
  • Maximum Output Current: 500mA
  • Dropout Voltage: 2V
  • Operating Temperature Range: -40°C to +125°C

Package

BA78M12CP-E2 comes in a TO-220 package.

Essence

The essence of BA78M12CP-E2 is to provide a stable and regulated +12V output voltage.

Packaging/Quantity

It is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Input Voltage Range: 14V to 35V
  • Output Voltage: +12V
  • Output Current: 500mA
  • Dropout Voltage: 2V
  • Line Regulation: ±0.5%
  • Load Regulation: ±1%
  • Ripple Rejection Ratio: 60dB
  • Quiescent Current: 6mA
  • Thermal Shutdown Protection: Yes
  • Short Circuit Protection: Yes

Detailed Pin Configuration

BA78M12CP-E2 has three pins:

  1. Input Pin (VIN): Connects to the input voltage source.
  2. Ground Pin (GND): Connected to the ground reference.
  3. Output Pin (VOUT): Provides the regulated +12V output voltage.

Functional Features

  • Regulates and stabilizes the output voltage.
  • Provides protection against thermal shutdown and short circuits.
  • Offers good line and load regulation.
  • High ripple rejection ratio for improved performance.

Advantages

  • Compact and easy to integrate into electronic circuits.
  • Wide input voltage range allows for versatile applications.
  • Provides a stable and regulated output voltage.
  • Offers protection against thermal shutdown and short circuits.

Disadvantages

  • Limited maximum output current of 500mA.
  • Dropout voltage of 2V may result in higher power dissipation.

Working Principles

BA78M12CP-E2 operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. The internal circuitry compares the output voltage with a reference voltage and adjusts the resistance accordingly to maintain a constant output voltage.

Detailed Application Field Plans

BA78M12CP-E2 finds applications in various electronic devices and systems, including:

  1. Power supplies for microcontrollers and digital circuits.
  2. Automotive electronics.
  3. Industrial control systems.
  4. Audio amplifiers and preamplifiers.
  5. Battery charging circuits.
  6. LED lighting systems.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to BA78M12CP-E2 are:

  1. LM7812: A popular 12V voltage regulator from Texas Instruments.
  2. L78M12CV: A 12V voltage regulator from STMicroelectronics.
  3. UA7812: A 12V voltage regulator from Texas Instruments.
  4. MC7812: A 12V voltage regulator from ON Semiconductor.

These alternative models offer similar functionality and performance characteristics to BA78M12CP-E2 and can be used as replacements depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BA78M12CP-E2 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of BA78M12CP-E2 in technical solutions:

  1. Question: What is BA78M12CP-E2?
    Answer: BA78M12CP-E2 is a voltage regulator IC that provides a fixed output voltage of +12V.

  2. Question: What is the input voltage range for BA78M12CP-E2?
    Answer: The input voltage range for BA78M12CP-E2 is typically between 14V and 35V.

  3. Question: What is the maximum output current of BA78M12CP-E2?
    Answer: The maximum output current of BA78M12CP-E2 is 500mA.

  4. Question: Can BA78M12CP-E2 be used to regulate lower voltages like 5V or 3.3V?
    Answer: No, BA78M12CP-E2 is specifically designed to provide a regulated output voltage of +12V.

  5. Question: Is BA78M12CP-E2 suitable for automotive applications?
    Answer: Yes, BA78M12CP-E2 is designed to operate in automotive environments and can handle the required voltage ranges.

  6. Question: Does BA78M12CP-E2 require any external components for operation?
    Answer: Yes, BA78M12CP-E2 requires input and output capacitors for stability and filtering purposes.

  7. Question: What is the thermal resistance of BA78M12CP-E2?
    Answer: The thermal resistance of BA78M12CP-E2 is typically around 50°C/W.

  8. Question: Can BA78M12CP-E2 handle short-circuit conditions?
    Answer: Yes, BA78M12CP-E2 has built-in protection features to handle short-circuit conditions.

  9. Question: Can BA78M12CP-E2 be used in high-temperature environments?
    Answer: Yes, BA78M12CP-E2 is designed to operate in a wide temperature range, typically up to 125°C.

  10. Question: Are there any alternative voltage regulator options similar to BA78M12CP-E2?
    Answer: Yes, there are other voltage regulators available with different output voltages and current ratings. It's important to choose the one that best suits your specific requirements.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer guidelines for BA78M12CP-E2.