Consulte las especificaciones para obtener detalles del producto.
L7905ACD2T
Product Overview
- Category: Integrated Circuit
- Use: Voltage Regulator
- Characteristics: Negative voltage regulator, fixed output voltage of -5V, 1A output current capability
- Package: TO-252 (DPAK)
- Essence: Linear voltage regulator
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Input Voltage Range: -7V to -35V
- Output Voltage: -5V
- Output Current: 1A
- Dropout Voltage: 2V
- Line Regulation: 0.07%/V
- Load Regulation: 0.1%
- Quiescent Current: 6mA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The L7905ACD2T has three pins:
- Input Pin (IN): Connects to the input voltage source.
- Ground Pin (GND): Connected to the ground reference.
- Output Pin (OUT): Provides the regulated -5V output.
Functional Features
- Fixed Output Voltage: The L7905ACD2T provides a stable -5V output voltage regardless of variations in the input voltage or load conditions.
- Overcurrent Protection: The device incorporates internal current limiting circuitry to protect against excessive output current.
- Thermal Shutdown: In case of high temperature, the regulator shuts down to prevent damage.
- Short-Circuit Protection: The L7905ACD2T is designed to withstand short-circuits between the output and ground without any damage.
Advantages and Disadvantages
Advantages: - Simple and reliable voltage regulation solution. - Low dropout voltage allows for efficient operation even with low input voltages. - Compact package size enables easy integration into various applications.
Disadvantages: - Limited output current capability of 1A. - Fixed output voltage may not be suitable for all applications requiring negative voltage regulation.
Working Principles
The L7905ACD2T is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with a fraction of the output voltage and adjusts the pass transistor accordingly to maintain a stable -5V output.
Detailed Application Field Plans
The L7905ACD2T is commonly used in various electronic devices and systems, including:
- Power Supplies: Provides regulated -5V supply for analog circuits, sensors, or other components.
- Audio Amplifiers: Used to generate a negative voltage rail for audio amplification circuits.
- Industrial Control Systems: Provides negative voltage for control circuitry in industrial automation applications.
- Automotive Electronics: Used in automotive systems where a stable negative voltage is required.
Detailed and Complete Alternative Models
- LM79XX Series: Similar negative voltage regulators with different fixed output voltages (-9V, -12V, etc.).
- LT1054: Switched-capacitor voltage converter capable of generating both positive and negative voltages.
- MAX1044: Voltage inverter IC that generates a negative voltage from a positive input.
These alternative models offer similar functionality but may have different specifications or package options.
Word count: 314 words
Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de L7905ACD2T en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of L7905ACD2T in technical solutions:
Q: What is L7905ACD2T? A: L7905ACD2T is a voltage regulator IC that provides a fixed output voltage of -5V.
Q: What is the input voltage range for L7905ACD2T? A: The input voltage range for L7905ACD2T is typically between -7V and -35V.
Q: What is the maximum output current of L7905ACD2T? A: The maximum output current of L7905ACD2T is 1A.
Q: Can L7905ACD2T be used to regulate positive voltages? A: No, L7905ACD2T is specifically designed to regulate negative voltages.
Q: How does L7905ACD2T handle thermal protection? A: L7905ACD2T has built-in thermal shutdown protection that prevents the IC from overheating.
Q: Can L7905ACD2T be used in automotive applications? A: Yes, L7905ACD2T is suitable for automotive applications as it can operate in a wide temperature range.
Q: What is the typical dropout voltage of L7905ACD2T? A: The typical dropout voltage of L7905ACD2T is around 2V.
Q: Is an external capacitor required for stability with L7905ACD2T? A: Yes, an external capacitor is recommended for stability. A 0.33μF ceramic capacitor is commonly used.
Q: Can L7905ACD2T be used in high-frequency applications? A: L7905ACD2T is not suitable for high-frequency applications due to its limited bandwidth.
Q: What are the typical applications of L7905ACD2T? A: L7905ACD2T is commonly used in various technical solutions, such as power supplies, voltage regulators, and audio amplifiers requiring a negative voltage source.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.