KA7905TU
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Regulator
- Characteristics: Fixed Negative Voltage Regulator
- Package: TO-220
- Essence: Monolithic IC
- Packaging/Quantity: Tube/50 pieces
Specifications
- Output Voltage: -5V
- Output Current: 1A
- Input Voltage Range: -7V to -25V
- Dropout Voltage: 2V (typical)
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The KA7905TU has three pins: 1. Pin 1: Input Voltage (VIN) 2. Pin 2: Ground (GND) 3. Pin 3: Output Voltage (VOUT)
Functional Features
- Provides a stable -5V output voltage.
- Built-in thermal overload protection.
- Short circuit current limiting.
- Internal short-circuit current limit.
- Safe operating area protection.
Advantages and Disadvantages
Advantages: - High accuracy and stability in providing a fixed -5V output. - Wide input voltage range allows for flexibility in various applications. - Built-in protection features ensure safe operation.
Disadvantages: - Limited output current of 1A may not be suitable for high-power applications. - Dropout voltage of 2V may result in higher power dissipation.
Working Principles
The KA7905TU is a fixed negative voltage regulator that uses a monolithic integrated circuit to provide a stable -5V output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor to maintain the desired output voltage.
Detailed Application Field Plans
The KA7905TU is commonly used in various electronic devices and applications, including: - Power supplies for audio amplifiers. - Voltage regulators in automotive electronics. - Negative power supply for analog circuits. - Industrial control systems. - Battery charging circuits.
Detailed and Complete Alternative Models
Some alternative models to the KA7905TU include: - LM7905: Fixed -5V voltage regulator by Texas Instruments. - MC7905: Negative voltage regulator by ON Semiconductor. - L7905CV: TO-220 package negative voltage regulator by STMicroelectronics. - UA7905: Fixed negative voltage regulator by Fairchild Semiconductor.
Note: This is not an exhaustive list, and there are several other alternative models available in the market.
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기술 솔루션에 KA7905TU 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of KA7905TU in technical solutions:
Question: What is KA7905TU?
- Answer: KA7905TU is a voltage regulator IC that provides a fixed output voltage of -5V.Question: What is the input voltage range for KA7905TU?
- Answer: The input voltage range for KA7905TU is typically between -7V to -25V.Question: Can KA7905TU be used to regulate positive voltages?
- Answer: No, KA7905TU is specifically designed to regulate negative voltages only.Question: What is the maximum output current of KA7905TU?
- Answer: The maximum output current of KA7905TU is 1A.Question: How does KA7905TU handle thermal protection?
- Answer: KA7905TU has built-in thermal shutdown protection to prevent overheating and damage.Question: Can KA7905TU be used in automotive applications?
- Answer: Yes, KA7905TU is suitable for automotive applications as it can operate within the required temperature range.Question: Is an external heat sink required for KA7905TU?
- Answer: It depends on the power dissipation and ambient temperature. In some cases, an external heat sink may be necessary.Question: Can multiple KA7905TU regulators be connected in parallel?
- Answer: Yes, multiple KA7905TU regulators can be connected in parallel to increase the output current capability.Question: What is the typical dropout voltage of KA7905TU?
- Answer: The typical dropout voltage of KA7905TU is around 2V.Question: Can KA7905TU be used in high-frequency applications?
- Answer: KA7905TU is not specifically designed for high-frequency applications, but it can be used if the frequency requirements are within its operating range.
Please note that these answers are general and may vary depending on the specific datasheet and application guidelines provided by the manufacturer.