Panasonic Electronic Components
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AN79L15M
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AN79L15M

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low dropout, fixed negative voltage output
  • Package: TO-252-3 (DPAK)
  • Essence: Regulates input voltage to a fixed -15V output voltage
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: -17V to -35V
  • Output Voltage: -15V
  • Output Current: 100mA
  • Dropout Voltage: 1.5V (typical)
  • Line Regulation: 0.2% (typical)
  • Load Regulation: 0.4% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AN79L15M IC has three pins:

  1. Pin 1: Input (VIN) - Connects to the input voltage source (-17V to -35V).
  2. Pin 2: Ground (GND) - Connected to the ground reference.
  3. Pin 3: Output (VOUT) - Provides the regulated -15V output voltage.

Functional Features

  • Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
  • Built-in thermal shutdown protection prevents damage due to excessive temperature.
  • Short-circuit current limiting protects the IC and connected components from damage in case of a short circuit.
  • Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.

Advantages and Disadvantages

Advantages: - Low dropout voltage allows for efficient regulation. - Thermal shutdown protection prevents overheating. - Compact TO-252-3 package offers easy integration into various applications.

Disadvantages: - Limited output current capability (100mA). - Negative voltage output restricts its use to specific applications.

Working Principles

The AN79L15M is a linear voltage regulator that uses a negative feedback mechanism to maintain a constant -15V output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the internal circuitry to regulate the output.

Detailed Application Field Plans

The AN79L15M is commonly used in applications where a stable -15V power supply is required. Some typical application fields include:

  1. Audio Amplifiers: Provides a regulated negative voltage for audio amplification circuits.
  2. Industrial Control Systems: Used in control boards and modules that require a reliable -15V power source.
  3. Test and Measurement Equipment: Provides a stable negative voltage reference for accurate measurements.
  4. Communication Systems: Used in various communication devices that require a negative voltage supply.

Detailed and Complete Alternative Models

  • LM337: Negative voltage regulator with adjustable output voltage.
  • MC79L15: Fixed -15V voltage regulator in TO-220 package.
  • LT1963A: Adjustable negative voltage regulator with higher output current capability.

(Note: This list is not exhaustive and there are other alternative models available in the market.)

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기술 솔루션에 AN79L15M 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of AN79L15M in technical solutions:

  1. Q: What is AN79L15M? A: AN79L15M is a voltage regulator IC (integrated circuit) that provides a fixed negative output voltage of -15V.

  2. Q: What is the input voltage range for AN79L15M? A: The input voltage range for AN79L15M is typically between -35V and -8V.

  3. Q: What is the output current capability of AN79L15M? A: AN79L15M can provide an output current of up to 100mA.

  4. Q: How does AN79L15M regulate the output voltage? A: AN79L15M uses a built-in voltage reference and error amplifier to maintain a constant -15V output voltage.

  5. Q: Can AN79L15M be used in both AC and DC applications? A: Yes, AN79L15M can be used in both AC and DC applications as long as the input voltage falls within the specified range.

  6. Q: Is AN79L15M suitable for low-power applications? A: Yes, AN79L15M is commonly used in low-power applications where a stable -15V supply is required.

  7. Q: Can AN79L15M handle short-circuit conditions? A: AN79L15M has built-in protection features that allow it to withstand short-circuit conditions without damage.

  8. Q: Does AN79L15M require any external components for operation? A: AN79L15M requires a few external components such as input and output capacitors for stability and filtering.

  9. Q: Can AN79L15M be used in automotive applications? A: Yes, AN79L15M is suitable for automotive applications as it can handle the voltage fluctuations commonly found in vehicles.

  10. Q: Are there any alternative voltage regulators similar to AN79L15M? A: Yes, there are other voltage regulator ICs available in the market that provide a fixed -15V output, such as LM337 and LT1054.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of AN79L15M.