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L79L08ACZ
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L79L08ACZ

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Negative Voltage Regulator
  • Package: TO-220
  • Essence: Linear Regulator
  • Packaging/Quantity: Tube/50 pieces

Specifications

  • Input Voltage Range: -35V to -10V
  • Output Voltage: -8V
  • Output Current: 100mA
  • Dropout Voltage: 2V
  • Line Regulation: 0.04%/V
  • Load Regulation: 0.3%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L79L08ACZ voltage regulator has three pins:

  1. Input (IN): This pin is used to connect the input voltage, typically a negative voltage in the range of -35V to -10V.
  2. Ground (GND): This pin is connected to the ground or reference voltage.
  3. Output (OUT): The regulated output voltage of -8V is obtained from this pin.

Functional Features

  • Low Dropout: The L79L08ACZ has a low dropout voltage of 2V, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
  • Negative Voltage Regulation: It provides a regulated negative voltage of -8V, making it suitable for applications that require a negative power supply.
  • Stable Output: The voltage regulator ensures a stable output voltage despite variations in the input voltage and load conditions.
  • Short Circuit Protection: The device includes internal short circuit protection, preventing damage to the regulator in case of a short circuit on the output side.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation even with small input-output voltage differentials. - Compact TO-220 package allows for easy integration into various electronic circuits. - Internal short circuit protection enhances device reliability.

Disadvantages: - Limited output current of 100mA may not be sufficient for high-power applications. - Negative voltage output restricts its use to specific applications requiring negative power supplies.

Working Principles

The L79L08ACZ is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The dropout voltage is minimized through the use of a low saturation voltage transistor.

Detailed Application Field Plans

The L79L08ACZ is commonly used in various electronic devices and systems, including:

  1. Audio Amplifiers: It can provide a stable negative voltage supply for audio amplifiers, ensuring accurate signal amplification.
  2. Instrumentation Systems: The voltage regulator is suitable for powering analog sensors and measurement circuits in instrumentation systems.
  3. Automotive Electronics: It finds application in automotive electronics, such as dashboard displays and control modules, where a regulated negative voltage is required.
  4. Industrial Control Systems: The L79L08ACZ can be used in industrial control systems to provide a reliable negative power supply for microcontrollers and other components.

Detailed and Complete Alternative Models

  1. LM79L08: This is a similar negative voltage regulator offered by Texas Instruments. It has comparable specifications and pin configuration to the L79L08ACZ.
  2. MC79L08: Manufactured by ON Semiconductor, this negative voltage regulator provides -8V output with similar characteristics to the L79L08ACZ.
  3. UA79L08: Another alternative from Fairchild Semiconductor, offering -8V output voltage regulation with similar features to the L79L08ACZ.

(Note: The above alternative models are provided for reference and may have slight variations in specifications and package type.)

In conclusion, the L79L08ACZ is a low dropout negative voltage regulator that provides a stable -8V output. It is commonly used in various applications requiring a regulated negative power supply. With its compact package and functional features, it offers reliable performance in electronic systems.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van L79L08ACZ in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of L79L08ACZ in technical solutions:

  1. Q: What is L79L08ACZ? A: L79L08ACZ is a voltage regulator integrated circuit (IC) that provides a fixed output voltage of -8V.

  2. Q: What is the purpose of using L79L08ACZ in technical solutions? A: L79L08ACZ is commonly used to regulate and stabilize the voltage supply in various electronic circuits or systems.

  3. Q: What is the input voltage range for L79L08ACZ? A: The input voltage range for L79L08ACZ typically varies from -10V to -35V.

  4. Q: What is the maximum output current that L79L08ACZ can handle? A: L79L08ACZ can handle a maximum output current of 100mA.

  5. Q: Can L79L08ACZ be used with both AC and DC input voltages? A: Yes, L79L08ACZ can be used with both AC and DC input voltages.

  6. Q: Is it necessary to use external components with L79L08ACZ? A: Yes, L79L08ACZ requires external capacitors for stability and proper operation.

  7. Q: What is the typical dropout voltage of L79L08ACZ? A: The typical dropout voltage of L79L08ACZ is around 2V.

  8. Q: Can L79L08ACZ handle short-circuit conditions? A: No, L79L08ACZ does not have built-in protection against short-circuits. External protection measures should be implemented.

  9. Q: What is the operating temperature range for L79L08ACZ? A: The operating temperature range for L79L08ACZ is typically -40°C to +125°C.

  10. Q: Are there any alternative voltage regulators similar to L79L08ACZ? A: Yes, there are other voltage regulators available in the market, such as LM79L08, MC79L08, and UA79L08, which provide similar functionality.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications of L79L08ACZ.