NJM78L09UA

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: Low dropout voltage, high output current capability
Package: TO-92 (Through-Hole)
Essence: Linear voltage regulator
Packaging/Quantity: Typically sold in reels of 2,500 units

Specifications

Input Voltage Range: 10V to 35V
Output Voltage: 9V
Output Current: Up to 100mA
Dropout Voltage: 1.5V (maximum)
Quiescent Current: 4mA (typical)

Detailed Pin Configuration

The NJM78L09UA has three pins:

Input (Vin): Connects to the input voltage source.
Ground (GND): Connected to the ground reference.
Output (Vout): Provides the regulated output voltage.

Functional Features

Voltage Regulation: The NJM78L09UA maintains a constant output voltage of 9V, regardless of changes in the input voltage or load conditions.
Low Dropout Voltage: With a maximum dropout voltage of 1.5V, this regulator can operate with a small voltage difference between the input and output.
High Output Current Capability: Capable of delivering up to 100mA of continuous output current.

Advantages and Disadvantages

Advantages: - Simple and easy to use. - Stable output voltage. - Low power consumption. - Compact package size.

Disadvantages: - Limited output current capability. - Requires external capacitors for stability.

Working Principles

The NJM78L09UA is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage to a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The NJM78L09UA is commonly used in various electronic devices and applications, including: - Power supplies for microcontrollers and other low-power digital circuits. - Battery-powered devices requiring a stable 9V voltage source. - Audio amplifiers and preamplifiers. - Voltage regulators for sensors and analog circuits.

Detailed and Complete Alternative Models

Some alternative models to the NJM78L09UA include: - LM7809: A popular voltage regulator with similar specifications and pin configuration. - MC78L09: Another widely used linear voltage regulator with compatible characteristics. - UA78L09: A low-cost alternative with comparable performance.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням NJM78L09UA у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of NJM78L09UA in technical solutions:

Q: What is NJM78L09UA? A: NJM78L09UA is a voltage regulator IC that provides a fixed output voltage of +9V.
Q: What is the input voltage range for NJM78L09UA? A: The input voltage range for NJM78L09UA is typically between +11V and +35V.
Q: What is the maximum output current of NJM78L09UA? A: The maximum output current of NJM78L09UA is 100mA.
Q: Can NJM78L09UA handle reverse polarity protection? A: No, NJM78L09UA does not have built-in reverse polarity protection. External protection measures should be taken.
Q: Is NJM78L09UA suitable for battery-powered applications? A: Yes, NJM78L09UA can be used in battery-powered applications as long as the input voltage is within the specified range.
Q: Does NJM78L09UA require any external components for operation? A: Yes, NJM78L09UA requires input and output capacitors for stability and filtering purposes. Refer to the datasheet for recommended values.
Q: Can NJM78L09UA handle high temperatures? A: NJM78L09UA has a maximum operating temperature of +125°C, making it suitable for most standard temperature environments.
Q: Can NJM78L09UA be used in automotive applications? A: Yes, NJM78L09UA can be used in automotive applications as long as the operating conditions and temperature range are within the specified limits.
Q: Can NJM78L09UA be used to power sensitive electronic components? A: Yes, NJM78L09UA provides a regulated output voltage, making it suitable for powering sensitive electronic components.
Q: Are there any alternative voltage regulator ICs similar to NJM78L09UA? A: Yes, there are several alternatives available in the market such as LM7809, MC7809, and UA7809 that provide similar functionality.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an expert when designing technical solutions.