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NJM79L09A
Product Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Regulator
- Characteristics: Low Dropout, Negative Voltage Regulator
- Package: TO-92 (Through-Hole)
- Essence: Linear Regulator IC
- Packaging/Quantity: Bulk packaging, typically sold in reels or tubes
Specifications
- Input Voltage Range: -35V to -10V
- Output Voltage: -9V
- Output Current: 100mA
- Dropout Voltage: 1.2V (typical)
- Quiescent Current: 5mA (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The NJM79L09A has a standard three-pin configuration:
- Input Pin (VIN): Connects to the input voltage source.
- Ground Pin (GND): Connected to the ground reference.
- Output Pin (VOUT): Provides the regulated output voltage.
Functional Features
- Voltage Regulation: The NJM79L09A regulates the input voltage to a stable -9V output.
- Low Dropout: The dropout voltage is minimal, ensuring efficient operation even with low input-output differentials.
- Short Circuit Protection: The IC incorporates internal protection against short circuits, preventing damage to the device.
- Thermal Shutdown: In case of excessive temperature, the IC shuts down to prevent overheating and potential failure.
Advantages and Disadvantages
Advantages: - Compact and easy-to-use package - Reliable voltage regulation - Low dropout voltage - Built-in protection features
Disadvantages: - Limited output current capacity (100mA) - Requires external capacitors for stability
Working Principles
The NJM79L09A is a linear voltage regulator that utilizes a negative feedback mechanism to maintain a stable output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to regulate the output within the specified range.
Detailed Application Field Plans
The NJM79L09A is commonly used in various electronic applications, including:
- Power Supplies: Provides regulated -9V supply for analog circuits, sensors, or other components.
- Audio Amplifiers: Used as a negative power supply for audio amplifiers, ensuring stable operation.
- Instrumentation: Suitable for powering precision instruments requiring a stable negative voltage source.
- Automotive Electronics: Can be employed in automotive systems where a reliable negative voltage is necessary.
Detailed and Complete Alternative Models
- LM79L09: Similar negative voltage regulator IC manufactured by Texas Instruments.
- MC79L09: Negative voltage regulator IC produced by ON Semiconductor.
- KA79L09: Another alternative from Fairchild Semiconductor.
These alternative models offer similar functionality and can be used as substitutes for the NJM79L09A in various applications.
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10 domande e risposte comuni relative all'applicazione di NJM79L09A nelle soluzioni tecniche
Sure! Here are 10 common questions and answers related to the application of NJM79L09A in technical solutions:
Q: What is NJM79L09A? A: NJM79L09A is a voltage regulator IC that provides a fixed output voltage of -9V.
Q: What is the input voltage range for NJM79L09A? A: The input voltage range for NJM79L09A is typically between -11V to -35V.
Q: What is the maximum output current of NJM79L09A? A: The maximum output current of NJM79L09A is 100mA.
Q: Can NJM79L09A be used to regulate positive voltages? A: No, NJM79L09A is specifically designed for negative voltage regulation only.
Q: What are the typical applications of NJM79L09A? A: NJM79L09A is commonly used in various electronic circuits where a stable -9V supply is required, such as audio amplifiers, analog circuits, and power supplies.
Q: Does NJM79L09A require any external components for operation? A: Yes, NJM79L09A requires at least two external capacitors (input and output) for proper stability and filtering.
Q: What is the dropout voltage of NJM79L09A? A: The dropout voltage of NJM79L09A is typically around 2V.
Q: Can NJM79L09A handle short-circuit conditions? A: Yes, NJM79L09A has built-in protection features that allow it to withstand short-circuit conditions without damage.
Q: What is the operating temperature range of NJM79L09A? A: The operating temperature range of NJM79L09A is typically between -40°C to +85°C.
Q: Is NJM79L09A available in different package options? A: Yes, NJM79L09A is available in various package options, including TO-92, SOT-89, and DPAK.
Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for NJM79L09A.