L79L09ACUTR
Product Overview
- Category: Integrated Circuit
- Use: Voltage Regulator
- Characteristics: Low Dropout, Negative Voltage Regulator
- Package: TO-220
- Essence: Linear Regulator
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Input Voltage Range: -35V to -10V
- Output Voltage: -9V
- Output Current: 100mA
- Dropout Voltage: 1.5V (typical)
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The L79L09ACUTR 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
- Low Dropout: The L79L09ACUTR exhibits low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
- Negative Voltage Regulation: This integrated circuit is designed to provide a stable negative voltage output.
- Internal Thermal Shutdown: The device includes internal thermal shutdown protection, which prevents damage due to excessive temperature.
Advantages and Disadvantages
Advantages: - Low dropout voltage ensures efficient regulation. - Compact TO-220 package allows for easy integration into various applications. - Internal thermal shutdown protects against overheating.
Disadvantages: - Limited output current capability of 100mA may not be suitable for high-power applications. - Negative voltage output restricts its use to specific applications requiring negative voltage regulation.
Working Principles
The L79L09ACUTR is a linear regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.
Detailed Application Field Plans
The L79L09ACUTR finds applications in various fields, including:
- Industrial Automation: Used in control systems that require negative voltage regulation.
- Telecommunications: Provides regulated negative voltage for communication equipment.
- Automotive: Used in automotive electronics for negative voltage regulation.
- Consumer Electronics: Suitable for devices that require a stable negative voltage supply.
Detailed and Complete Alternative Models
- LM79L09: Similar negative voltage regulator with a TO-92 package.
- MC79L09: Negative voltage regulator with higher output current capability.
- LT1059: Precision negative voltage regulator with adjustable output voltage.
These alternative models offer similar functionality and can be considered as alternatives to the L79L09ACUTR based on specific requirements.
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기술 솔루션에 L79L09ACUTR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of L79L09ACUTR in technical solutions:
Q: What is L79L09ACUTR? A: L79L09ACUTR is a voltage regulator IC that provides a fixed output voltage of -9V.
Q: What is the purpose of using L79L09ACUTR in technical solutions? A: The purpose of using L79L09ACUTR is to regulate and stabilize the input voltage to a constant -9V output voltage.
Q: What is the maximum input voltage that L79L09ACUTR can handle? A: The maximum input voltage that L79L09ACUTR can handle is typically around -35V.
Q: Can L79L09ACUTR be used with both AC and DC input voltages? A: Yes, L79L09ACUTR can be used with both AC and DC input voltages.
Q: What is the maximum current that L79L09ACUTR can provide? A: The maximum current that L79L09ACUTR can provide is typically around 100mA.
Q: Is it necessary to use external capacitors with L79L09ACUTR? A: Yes, it is recommended to use external capacitors for stability and noise reduction. Refer to the datasheet for specific capacitor values.
Q: Can L79L09ACUTR handle short-circuit conditions? A: No, L79L09ACUTR is not designed to handle short-circuit conditions. It is advised to use appropriate protection circuitry.
Q: Can L79L09ACUTR be used in automotive applications? A: Yes, L79L09ACUTR can be used in automotive applications as long as the operating conditions and temperature range are within its specifications.
Q: What is the thermal resistance of L79L09ACUTR? A: The thermal resistance of L79L09ACUTR is typically around 50°C/W.
Q: Can multiple L79L09ACUTR ICs be connected in parallel to increase the output current? A: No, it is not recommended to connect multiple L79L09ACUTR ICs in parallel for increasing the output current. It may lead to stability issues and uneven load sharing.
Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for L79L09ACUTR.