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KA3882ED
Product Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Regulator
- Characteristics: High efficiency, low dropout voltage, compact size
- Package: TO-220
- Essence: Monolithic linear voltage regulator
- Packaging/Quantity: Tape and reel, 1000 units per reel
Specifications
- Input Voltage Range: 4.5V to 25V
- Output Voltage Range: 1.2V to 20V
- Output Current: Up to 3A
- Dropout Voltage: 0.6V typical at 3A load
- Line Regulation: ±0.2% typical
- Load Regulation: ±0.4% typical
- Quiescent Current: 10mA typical
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The KA3882ED has the following pin configuration:
- VIN - Input Voltage
- GND - Ground
- VOUT - Output Voltage
- ADJ - Adjustable Pin for Output Voltage Setting
- NC - No Connection
Functional Features
- High efficiency with low dropout voltage
- Built-in thermal shutdown protection
- Short circuit current limiting
- Overcurrent and overtemperature protection
- Adjustable output voltage using external resistors
- Fast transient response
Advantages and Disadvantages
Advantages
- High efficiency results in less power dissipation
- Wide input voltage range allows for versatile applications
- Compact size makes it suitable for space-constrained designs
- Excellent line and load regulation ensures stable output voltage
Disadvantages
- Dropout voltage of 0.6V may limit certain low voltage applications
- Quiescent current of 10mA may be relatively high for battery-powered devices
Working Principles
The KA3882ED is a monolithic linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a feedback voltage derived from the output. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in load and input voltage.
Detailed Application Field Plans
The KA3882ED is commonly used in various applications, including:
- Power supplies for consumer electronics
- Industrial control systems
- Automotive electronics
- Telecommunications equipment
- Battery charging circuits
- LED lighting systems
Detailed and Complete Alternative Models
- LM317 - Adjustable Linear Voltage Regulator
- LT1083 - Low Dropout Positive Adjustable Regulator
- LM1117 - Low Dropout Voltage Regulator
- L7805 - Fixed Voltage Regulator, 5V Output
- LM2940 - Low Dropout Regulator, 1A Output
These alternative models offer similar functionality and can be considered as substitutes for the KA3882ED in various applications.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de KA3882ED em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of KA3882ED in technical solutions:
Q: What is KA3882ED? A: KA3882ED is a specific integrated circuit (IC) used for controlling power supply systems in various technical applications.
Q: What are the main features of KA3882ED? A: The main features of KA3882ED include overvoltage protection, undervoltage lockout, soft-start function, and adjustable output voltage.
Q: How does KA3882ED help in power supply control? A: KA3882ED provides precise control over the power supply system by regulating the output voltage, protecting against voltage fluctuations, and ensuring a smooth startup.
Q: Can KA3882ED be used in both AC and DC power supplies? A: Yes, KA3882ED can be used in both AC and DC power supplies, making it versatile for various technical solutions.
Q: What is the maximum input voltage supported by KA3882ED? A: The maximum input voltage supported by KA3882ED is typically around 30V.
Q: Is KA3882ED suitable for high-power applications? A: KA3882ED is designed for low to medium power applications, typically up to a few hundred watts.
Q: Does KA3882ED have built-in protection mechanisms? A: Yes, KA3882ED incorporates overvoltage protection, undervoltage lockout, and short-circuit protection to safeguard the power supply system.
Q: Can KA3882ED be used in battery charging applications? A: Yes, KA3882ED can be utilized in battery charging applications by providing controlled and regulated charging voltage.
Q: Are there any specific design considerations when using KA3882ED? A: Yes, it is important to consider the input and output voltage requirements, load characteristics, and thermal management while designing with KA3882ED.
Q: Where can I find more information about the application of KA3882ED in technical solutions? A: You can refer to the datasheet and application notes provided by the manufacturer or consult online resources and forums dedicated to power supply design for more detailed information.
Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of your technical solution.