Panasonic Electronic Components
이미지는 예시일 수 있습니다.
제품 세부사항은 사양을 확인하세요.
AN78L07
자세히보기 데이터시트

AN78L07

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low dropout voltage, fixed output voltage
  • Package: TO-220, TO-92
  • Essence: Linear regulator
  • Packaging/Quantity: Tape and reel, 1000 pieces per reel

Specifications

  • Input Voltage Range: 8V to 35V
  • Output Voltage: 7V
  • Output Current: 100mA
  • Dropout Voltage: 1.7V (typical)
  • Line Regulation: 0.2% (typical)
  • Load Regulation: 0.4% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AN78L07 IC has three pins:

  1. Input (Vin): This pin is used to connect the input voltage.
  2. Ground (GND): This pin is connected to the ground or reference voltage.
  3. Output (Vout): The regulated output voltage is obtained from this pin.

Functional Features

  • Low dropout voltage: The AN78L07 has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
  • Fixed output voltage: The IC provides a fixed output voltage of 7V, which remains constant regardless of changes in the input voltage or load conditions.
  • Overcurrent protection: The AN78L07 includes built-in overcurrent protection, safeguarding the circuit from excessive current flow.
  • Thermal shutdown protection: In case of excessive temperature rise, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - Simple and compact design - Easy to use and integrate into various circuits - Low dropout voltage ensures efficient regulation - Built-in overcurrent and thermal protection

Disadvantages: - Limited output current capability (100mA) - Fixed output voltage may not suit all applications

Working Principles

The AN78L07 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a voltage divider network. The series pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in the input voltage and load conditions.

Detailed Application Field Plans

The AN78L07 is commonly used in various electronic devices and circuits, including:

  1. Power supplies: It can be used as a voltage regulator in power supply circuits to provide a stable and regulated voltage to other components.
  2. Audio amplifiers: The IC can be employed in audio amplifier circuits to ensure a consistent power supply voltage, resulting in improved audio quality.
  3. Battery-powered devices: It finds application in battery-powered devices where a stable voltage is required to operate the circuitry efficiently.

Detailed and Complete Alternative Models

Some alternative models to the AN78L07 include:

  1. LM7805: A popular 5V linear voltage regulator with similar characteristics and pin configuration.
  2. MC78L05: Another 5V linear voltage regulator available in different packages.
  3. LT1084: A high-current linear voltage regulator capable of delivering up to 5A of output current.

These alternative models offer different output voltages and current capabilities, providing flexibility for various applications.

Word count: 314 words

기술 솔루션에 AN78L07 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of AN78L07 in technical solutions:

  1. Q: What is AN78L07? A: AN78L07 is a voltage regulator IC (integrated circuit) that provides a fixed output voltage of 7V.

  2. Q: What is the input voltage range for AN78L07? A: The input voltage range for AN78L07 is typically between 9V and 35V.

  3. Q: What is the maximum output current of AN78L07? A: The maximum output current of AN78L07 is 100mA.

  4. Q: Can AN78L07 be used to regulate lower voltages like 5V or 3.3V? A: No, AN78L07 is specifically designed to provide a fixed output voltage of 7V only.

  5. Q: Is AN78L07 suitable for battery-powered applications? A: Yes, AN78L07 can be used in battery-powered applications as long as the input voltage remains within its specified range.

  6. Q: Does AN78L07 require any external components for operation? A: Yes, AN78L07 requires input and output capacitors for stability and filtering purposes. Refer to the datasheet for recommended values.

  7. Q: Can AN78L07 handle high temperatures? A: AN78L07 has a maximum operating temperature of 125°C, so it can handle relatively high temperatures.

  8. Q: Can AN78L07 tolerate reverse polarity on the input voltage? A: No, AN78L07 is not designed to tolerate reverse polarity. Make sure to connect the input voltage correctly.

  9. Q: Can AN78L07 be used in parallel to increase the output current? A: No, AN78L07 is not designed for parallel operation. Using multiple regulators in parallel can cause stability and reliability issues.

  10. Q: Are there any alternatives to AN78L07 for different output voltages? A: Yes, there are various voltage regulator ICs available in the market that provide different fixed output voltages. Choose one that suits your specific requirements.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for AN78L07.