NJM78L24UA
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Regulator
- Characteristics: Low dropout, fixed output voltage
- Package: TO-92
- Essence: Linear regulator
- Packaging/Quantity: Bulk packaging, typically sold in reels or tubes
Specifications
- Input Voltage Range: 4.75V to 30V
- Output Voltage: 24V
- Output Current: 100mA
- Dropout Voltage: 1.7V (typical)
- Line Regulation: 0.04%/V (typical)
- Load Regulation: 0.2% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The NJM78L24UA has three pins: 1. Input (IN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (OUT): Provides the regulated output voltage.
Functional Features
- Low dropout voltage: The NJM78L24UA can regulate the output voltage even when the input voltage is close to the desired output voltage.
- Short circuit protection: The IC is designed to withstand short circuits at the output without damage.
- Thermal shutdown protection: In case of excessive temperature, the IC shuts down to prevent overheating and potential damage.
- Reverse polarity protection: The device is protected against reverse polarity connection.
Advantages and Disadvantages
Advantages: - Compact size and easy to use. - Stable and reliable voltage regulation. - Wide input voltage range. - Built-in protection features.
Disadvantages: - Limited output current capability. - Requires external capacitors for stability.
Working Principles
The NJM78L24UA 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 to maintain a constant output voltage. The dropout voltage is minimized by using a low dropout voltage regulator design.
Detailed Application Field Plans
The NJM78L24UA is commonly used in various applications, including: 1. Power supplies for industrial and consumer electronics. 2. Battery-powered devices requiring a stable 24V supply. 3. Automotive electronics. 4. Audio amplifiers and preamplifiers. 5. LED lighting systems.
Detailed and Complete Alternative Models
Some alternative models that can be used as replacements for the NJM78L24UA include: - LM78L24: Manufactured by Texas Instruments. - MC78L24: Manufactured by ON Semiconductor. - UA78L24: Manufactured by Fairchild Semiconductor.
These alternatives have similar specifications and pin configurations, making them suitable substitutes for the NJM78L24UA.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av NJM78L24UA i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of NJM78L24UA in technical solutions:
Q: What is NJM78L24UA? A: NJM78L24UA is a voltage regulator IC that provides a fixed output voltage of 24V.
Q: What is the input voltage range for NJM78L24UA? A: The input voltage range for NJM78L24UA is typically between 27V and 30V.
Q: What is the maximum output current of NJM78L24UA? A: The maximum output current of NJM78L24UA is 100mA.
Q: Can NJM78L24UA handle higher input voltages than its specified range? A: No, exceeding the specified input voltage range can damage the IC.
Q: Is NJM78L24UA suitable for battery-powered applications? A: Yes, NJM78L24UA can be used in battery-powered applications as long as the input voltage is within its specified range.
Q: Does NJM78L24UA require any external components for operation? A: Yes, NJM78L24UA requires input and output capacitors for stability and filtering purposes.
Q: Can NJM78L24UA be used in automotive applications? A: Yes, NJM78L24UA can be used in automotive applications as long as the input voltage is within its specified range.
Q: What is the thermal shutdown feature of NJM78L24UA? A: The thermal shutdown feature protects the IC from overheating by shutting it down when the temperature exceeds a certain threshold.
Q: Can NJM78L24UA be used in high-temperature environments? A: NJM78L24UA has a maximum operating temperature of 125°C, so it can be used in moderately high-temperature environments.
Q: Are there any alternative voltage regulator ICs similar to NJM78L24UA? A: Yes, there are other voltage regulator ICs available in the market with similar specifications, such as LM7805 and MC78L24.