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L7908CV-DG
বিস্তারিত দেখুন ডেটাশিট

L7908CV-DG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Fixed Negative Voltage Regulator, -8V Output
  • Package: TO-220, 3-Pin
  • Essence: Linear Regulator
  • Packaging/Quantity: Tube/50 pieces

Specifications

  • Input Voltage Range: -10V to -35V
  • Output Voltage: -8V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 2V (max)
  • Line Regulation: 0.2% (typ)
  • Load Regulation: 0.4% (typ)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L7908CV-DG has three pins:

  1. Input Pin (Pin 1): Connects to the input voltage source.
  2. Ground Pin (Pin 2): Connected to the ground reference.
  3. Output Pin (Pin 3): Provides the regulated -8V output.

Functional Features

  • Voltage Regulation: The L7908CV-DG ensures a stable -8V output voltage regardless of input variations.
  • Overcurrent Protection: It incorporates overcurrent protection to safeguard connected devices.
  • Thermal Shutdown: In case of excessive temperature, the regulator shuts down to prevent damage.
  • Short-Circuit Protection: The device is protected against short-circuits, enhancing its reliability.

Advantages and Disadvantages

Advantages: - Simple and reliable voltage regulation solution. - Wide input voltage range allows flexibility in various applications. - Overcurrent and short-circuit protection enhance safety.

Disadvantages: - Dropout voltage of 2V may limit its use in low voltage applications. - Requires external capacitors for stability.

Working Principles

The L7908CV-DG is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable -8V output.

Detailed Application Field Plans

The L7908CV-DG finds application in various fields, including: 1. Power supply circuits requiring a regulated -8V output. 2. Audio amplifiers and preamplifiers. 3. Industrial control systems. 4. Automotive electronics. 5. Battery charging circuits.

Detailed and Complete Alternative Models

  1. LM320T-8: Fixed -8V Voltage Regulator, TO-220 package.
  2. MC7908CT: Negative Voltage Regulator, -8V output, TO-220 package.
  3. UA7908CKCSE3: Fixed Negative Voltage Regulator, -8V output, TO-220 package.

These alternative models provide similar functionality and can be used as substitutes for the L7908CV-DG.

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প্রযুক্তিগত সমাধানে L7908CV-DG এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

Sure! Here are 10 common questions and answers related to the application of L7908CV-DG in technical solutions:

  1. Q: What is L7908CV-DG? A: L7908CV-DG is a voltage regulator IC that provides a fixed output voltage of -8V.

  2. Q: What is the purpose of using L7908CV-DG in a technical solution? A: The purpose of using L7908CV-DG is to regulate and stabilize the input voltage to a constant -8V output voltage.

  3. Q: What is the maximum input voltage that L7908CV-DG can handle? A: The maximum input voltage that L7908CV-DG can handle is -35V.

  4. Q: Can L7908CV-DG be used with both AC and DC input voltages? A: Yes, L7908CV-DG can be used with both AC and DC input voltages.

  5. Q: What is the maximum output current that L7908CV-DG can provide? A: The maximum output current that L7908CV-DG can provide is 1.5A.

  6. Q: Is it necessary to use external components with L7908CV-DG for proper operation? A: Yes, external capacitors are required for stable operation. Refer to the datasheet for recommended values.

  7. Q: Can L7908CV-DG handle short circuit protection? A: Yes, L7908CV-DG has built-in short circuit protection to prevent damage to the IC.

  8. Q: What is the operating temperature range of L7908CV-DG? A: The operating temperature range of L7908CV-DG is typically -40°C to +125°C.

  9. Q: Can L7908CV-DG be used in automotive applications? A: Yes, L7908CV-DG is suitable for automotive applications as it meets the necessary standards and requirements.

  10. Q: Are there any alternative voltage regulator ICs that can be used instead of L7908CV-DG? A: Yes, there are other voltage regulator ICs available with different output voltages and specifications. It is recommended to choose one based on your specific requirements.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for L7908CV-DG.