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NJM7806FA
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NJM7806FA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics:
    • Fixed output voltage of -6V
    • Low dropout voltage
    • High ripple rejection
    • Thermal shutdown protection
  • Package: TO-220F
  • Essence: Monolithic integrated circuit designed for voltage regulation
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

  • Output Voltage: -6V
  • Input Voltage Range: 8V to 35V
  • Dropout Voltage: 2V (typical)
  • Ripple Rejection: 60dB (typical)
  • Quiescent Current: 5mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NJM7806FA has a standard TO-220F package with three pins:

  1. Input Pin (Vin): Connects to the input voltage source.
  2. Ground Pin (GND): Connected to the ground reference.
  3. Output Pin (Vout): Provides the regulated -6V output.

Functional Features

  • Voltage Regulation: The NJM7806FA maintains a constant -6V output voltage regardless of variations in the input voltage.
  • Low Dropout Voltage: The regulator can operate with a small voltage difference between the input and output, minimizing power dissipation.
  • High Ripple Rejection: It effectively filters out noise and ripple present in the input voltage.
  • Thermal Shutdown Protection: The IC shuts down when the temperature exceeds a safe limit, preventing damage due to overheating.

Advantages and Disadvantages

Advantages: - Stable and accurate voltage regulation - Low dropout voltage ensures efficient power conversion - High ripple rejection improves performance in noisy environments - Thermal shutdown protection enhances reliability

Disadvantages: - Fixed output voltage limits flexibility in certain applications - Limited input voltage range (8V to 35V)

Working Principles

The NJM7806FA 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 constant -6V output.

Detailed Application Field Plans

The NJM7806FA is commonly used in various electronic devices and systems, including:

  1. Power Supplies: Provides regulated -6V supply for analog circuits, sensors, or other components.
  2. Audio Amplifiers: Stabilizes the negative power supply rail in audio amplifiers, ensuring consistent performance.
  3. Industrial Control Systems: Used in control circuits, motor drivers, and other industrial applications requiring stable negative voltage.

Alternative Models

Other alternative models that can be considered as replacements for the NJM7806FA include:

  1. LM7806: A widely used 6V voltage regulator from Texas Instruments.
  2. MC7806: Another popular 6V regulator manufactured by ON Semiconductor.
  3. UA7806: A fixed -6V regulator produced by Fairchild Semiconductor.

These alternatives offer similar functionality and can be suitable replacements depending on specific requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af NJM7806FA i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of NJM7806FA in technical solutions:

  1. Q: What is NJM7806FA? A: NJM7806FA is a voltage regulator IC that provides a fixed output voltage of +6V.

  2. Q: What is the input voltage range for NJM7806FA? A: The input voltage range for NJM7806FA is typically between 7V and 35V.

  3. Q: What is the maximum output current of NJM7806FA? A: The maximum output current of NJM7806FA is 1A.

  4. Q: Can NJM7806FA handle higher input voltages than its output voltage? A: No, NJM7806FA requires the input voltage to be at least 2V higher than its output voltage.

  5. Q: Is NJM7806FA suitable for both AC and DC input voltages? A: Yes, NJM7806FA can handle both AC and DC input voltages.

  6. Q: Does NJM7806FA require any external components for operation? A: Yes, NJM7806FA requires input and output capacitors for stability and filtering.

  7. Q: Can NJM7806FA be used in automotive applications? A: Yes, NJM7806FA is suitable for automotive applications as long as the input voltage requirements are met.

  8. Q: What is the thermal resistance of NJM7806FA? A: The thermal resistance of NJM7806FA is typically around 50°C/W.

  9. Q: Can NJM7806FA be used in high-temperature environments? A: NJM7806FA has a maximum operating temperature of 125°C, so it can be used in moderately high-temperature environments.

  10. Q: Are there any alternative voltage regulator ICs similar to NJM7806FA? A: Yes, there are other voltage regulator ICs available in the market such as LM7806, MC7806, etc., which provide similar functionality.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of NJM7806FA.