Panasonic Electronic Components
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AN79L07
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AN79L07

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Negative Voltage Regulator
  • Package: TO-220
  • Essence: AN79L07 is a negative voltage regulator IC that provides a fixed output voltage of -7V.
  • Packaging/Quantity: Available in tape and reel packaging with 50 units per reel.

Specifications

  • Input Voltage Range: -10V to -35V
  • Output Voltage: -7V
  • Output Current: Up to 100mA
  • Dropout Voltage: 1.5V (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

AN79L07 has three pins:

  1. Input Pin (VIN): Connects to the input voltage source.
  2. Ground Pin (GND): Connected to the ground or common reference point.
  3. Output Pin (VOUT): Provides the regulated -7V output voltage.

Functional Features

  • Voltage Regulation: AN79L07 ensures a stable -7V output voltage regardless of input voltage fluctuations.
  • Low Dropout: The dropout voltage of 1.5V allows the IC to operate efficiently even when the input voltage is close to the desired output voltage.
  • Short Circuit Protection: The IC includes built-in protection against short circuits, preventing damage to the device.
  • Thermal Shutdown: AN79L07 incorporates thermal shutdown protection, which shuts down the device if the temperature exceeds the safe operating limit.

Advantages and Disadvantages

Advantages: - Provides a stable -7V output voltage. - Low dropout voltage enables efficient operation. - Built-in short circuit protection. - Thermal shutdown feature prevents overheating.

Disadvantages: - Limited output current capacity (up to 100mA). - Requires an input voltage range of -10V to -35V.

Working Principles

AN79L07 operates as a negative voltage regulator by comparing the output voltage with a reference voltage. It adjusts the internal circuitry to maintain a constant -7V output voltage, compensating for any changes in the input voltage or load conditions.

Detailed Application Field Plans

AN79L07 is commonly used in various electronic devices and applications, including:

  1. Audio Amplifiers: Provides a stable negative voltage supply for audio amplifier circuits.
  2. Instrumentation Systems: Used in instrumentation systems that require a regulated negative voltage source.
  3. Automotive Electronics: Suitable for automotive applications where a negative voltage regulator is needed.
  4. Battery-Powered Devices: Can be utilized in battery-powered devices that require a regulated negative voltage.

Detailed and Complete Alternative Models

Some alternative models to AN79L07 include:

  1. LM7907: Negative voltage regulator IC with similar specifications and pin configuration.
  2. MC79L07: Another negative voltage regulator IC offering -7V output voltage.
  3. LT1054: A versatile DC-DC converter that can generate both positive and negative voltages.

These alternative models provide similar functionality and can be considered as substitutes for AN79L07 depending on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AN79L07 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AN79L07 in technical solutions:

  1. Q: What is AN79L07? A: AN79L07 is a voltage regulator IC (integrated circuit) that provides a fixed negative voltage output.

  2. Q: What is the purpose of AN79L07 in technical solutions? A: AN79L07 is commonly used to regulate and stabilize negative voltage supplies in various electronic circuits.

  3. Q: What is the input voltage range for AN79L07? A: The input voltage range for AN79L07 typically ranges from -8V to -35V.

  4. Q: What is the output voltage of AN79L07? A: The output voltage of AN79L07 is fixed at -7V.

  5. Q: Can AN79L07 handle high currents? A: No, AN79L07 is designed for low current applications and can typically handle currents up to 100mA.

  6. Q: Is AN79L07 suitable for battery-powered devices? A: Yes, AN79L07 is often used in battery-powered devices due to its low power consumption and compact size.

  7. Q: Does AN79L07 require any external components for operation? A: Yes, AN79L07 requires a few external components such as capacitors for stability and noise filtering.

  8. Q: Can AN79L07 tolerate overvoltage or reverse polarity? A: No, AN79L07 is not designed to tolerate overvoltage or reverse polarity. Proper protection measures should be taken.

  9. Q: Are there any temperature limitations for AN79L07? A: AN79L07 has an operating temperature range typically between -40°C to +125°C.

  10. Q: Can AN79L07 be used in automotive applications? A: Yes, AN79L07 is suitable for automotive applications as long as it meets the required specifications and temperature range.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of AN79L07.