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L7908ACV
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L7908ACV

Product Overview

Category

The L7908ACV belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

  • Input Voltage: Up to 35V
  • Output Voltage: -8V
  • Maximum Output Current: 1.5A
  • Low Dropout Voltage: 1.5V
  • Thermal Overload Protection
  • Short Circuit Protection

Package

The L7908ACV is available in a TO-220 package.

Essence

This voltage regulator is essential for maintaining a stable voltage supply in various electronic applications.

Packaging/Quantity

The L7908ACV is typically packaged in reels or tubes, with quantities varying based on supplier specifications.

Specifications

  • Input Voltage Range: Up to 35V
  • Output Voltage: -8V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 1.5V
  • Operating Temperature Range: 0°C to 125°C
  • Package Type: TO-220

Detailed Pin Configuration

The L7908ACV has three pins: 1. Input (Vin) 2. Ground (GND) 3. Output (Vout)

Functional Features

  • Voltage Regulation: The L7908ACV provides a stable -8V output voltage even with fluctuations in the input voltage.
  • Overload Protection: It includes thermal overload and short circuit protection to prevent damage to the regulator and connected components.

Advantages

  • Wide Input Voltage Range: Can handle input voltages up to 35V.
  • Robust Protection: Offers protection against thermal overload and short circuits.
  • Reliable Performance: Provides stable output voltage even under varying load conditions.

Disadvantages

  • Dropout Voltage: The 1.5V dropout voltage may not be suitable for low-power applications.
  • Heat Dissipation: May require additional heat sinking for high current applications.

Working Principles

The L7908ACV uses internal circuitry to compare the output voltage with a reference voltage and adjusts the output to maintain a constant -8V. It utilizes a series pass PNP transistor to regulate the output voltage.

Detailed Application Field Plans

The L7908ACV is commonly used in: - Power supply units - Industrial control systems - Automotive electronics - Audio amplifiers - Instrumentation

Detailed and Complete Alternative Models

Some alternative models to the L7908ACV include: - LM7908: A similar -8V voltage regulator from Texas Instruments. - UA7908: Another -8V regulator with comparable specifications.

In conclusion, the L7908ACV is a reliable voltage regulator with robust protection features, making it suitable for various electronic applications requiring a stable -8V power supply.

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技術ソリューションにおける L7908ACV の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the L7908ACV voltage regulator used for?

    • The L7908ACV is a voltage regulator designed to provide a constant 8V output voltage from a higher input voltage source.

  2. What is the maximum input voltage for the L7908ACV?

    • The maximum input voltage for the L7908ACV is typically around 35V.

  3. What is the maximum output current of the L7908ACV?

    • The maximum output current of the L7908ACV is around 1.5A.

  4. How does the L7908ACV handle thermal considerations?

    • The L7908ACV has built-in thermal shutdown and current limiting features to protect itself from overheating and overloading.

  5. Can the L7908ACV be used in automotive applications?

    • Yes, the L7908ACV is suitable for use in automotive electronics as long as the operating conditions are within its specified limits.

  6. What are the typical applications for the L7908ACV?

    • The L7908ACV is commonly used in power supply circuits for various electronic devices, including audio amplifiers, industrial control systems, and instrumentation.

  7. Does the L7908ACV require external components for operation?

    • Yes, the L7908ACV typically requires input and output capacitors for stable and reliable operation.

  8. What are the key features of the L7908ACV?

    • The key features of the L7908ACV include low dropout voltage, thermal shutdown, short-circuit protection, and high ripple rejection.

  9. What are the recommended operating conditions for the L7908ACV?

    • The L7908ACV operates within a temperature range of -40°C to 125°C and requires proper heat sinking for higher power dissipation.

  10. Are there any common issues or limitations when using the L7908ACV?

    • Some common issues include voltage drop across the regulator, heat dissipation concerns, and the need to ensure proper input and output capacitor selection for stability.

Feel free to ask if you have any more questions or need further details on any of these points!