Panasonic Electronic Components
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AN79L15
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AN79L15

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low dropout voltage, high output current capability
  • Package: TO-220, TO-92
  • Essence: Linear regulator
  • Packaging/Quantity: Available in reels or tubes

Specifications

  • Input Voltage Range: -35V to -6.5V
  • Output Voltage: -15V
  • Dropout Voltage: 2V (maximum)
  • Output Current: 100mA (maximum)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AN79L15 IC has three pins:

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

Functional Features

  • Low dropout voltage ensures stable output even with low input voltage.
  • High output current capability allows for powering various components.
  • Internal thermal shutdown protection prevents overheating.
  • Short-circuit current limiting protects the IC from damage.

Advantages and Disadvantages

Advantages: - Compact size and easy to integrate into circuit designs. - Reliable voltage regulation for sensitive electronic components. - Cost-effective solution for low-power applications.

Disadvantages: - Limited output current compared to higher-rated regulators. - Requires external capacitors for stability.

Working Principles

The AN79L15 is a linear voltage regulator that maintains a constant output voltage despite variations in the input voltage. It achieves this by using a pass transistor to regulate the voltage drop across it. The internal circuitry monitors the output voltage and adjusts the pass transistor accordingly to maintain the desired voltage level.

Detailed Application Field Plans

The AN79L15 is commonly used in various electronic devices and applications, including:

  1. Power supplies for audio amplifiers.
  2. Battery-powered devices requiring stable voltage.
  3. Automotive electronics.
  4. Industrial control systems.
  5. Consumer electronics.

Detailed and Complete Alternative Models

Some alternative models to AN79L15 include:

  1. LM317: Adjustable voltage regulator with higher output current capability.
  2. LM7805: Fixed 5V voltage regulator suitable for low-power applications.
  3. LT1086: Low dropout voltage regulator with adjustable output voltage.

These alternatives offer different features and specifications, allowing designers to choose the most suitable option for their specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AN79L15 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AN79L15 in technical solutions:

  1. Q: What is AN79L15? A: AN79L15 is a voltage regulator IC (integrated circuit) that provides a fixed negative output voltage of -15V.

  2. Q: What is the purpose of using AN79L15 in technical solutions? A: AN79L15 is commonly used to regulate and stabilize the negative voltage supply in various electronic circuits and systems.

  3. Q: What is the input voltage range for AN79L15? A: The input voltage range for AN79L15 typically ranges from -20V to -35V.

  4. Q: What is the maximum output current of AN79L15? A: The maximum output current of AN79L15 is usually around 100mA.

  5. Q: Can AN79L15 be used in both AC and DC applications? A: Yes, AN79L15 can be used in both AC and DC applications as long as the input voltage falls within the specified range.

  6. Q: Is AN79L15 suitable for high-power applications? A: No, AN79L15 is not suitable for high-power applications due to its limited output current capability.

  7. Q: Does AN79L15 require any external components for operation? A: Yes, AN79L15 requires a few external components such as capacitors and resistors for proper operation and stability.

  8. Q: Can AN79L15 handle overvoltage or reverse polarity protection? A: No, AN79L15 does not have built-in overvoltage or reverse polarity protection. Additional circuitry is required for such protection.

  9. Q: What are some typical applications of AN79L15? A: AN79L15 is commonly used in audio amplifiers, power supplies, instrumentation systems, and other electronic devices requiring a stable negative voltage.

  10. Q: Are there any alternatives to AN79L15 for negative voltage regulation? A: Yes, there are other voltage regulator ICs available in the market that can provide similar negative voltage regulation, such as LM7915 or ICL7660.

Please note that the specific details and characteristics of AN79L15 may vary depending on the manufacturer and datasheet specifications.