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L78M05ABDT-TR
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - Fixed Output Voltage: 5V - Maximum Output Current: 0.5A - Input Voltage Range: 7V to 35V - Dropout Voltage: 2V - Low Quiescent Current: 5mA - Thermal Overload Protection - Short Circuit Protection
Package: DPAK (TO-252), 3-pin package
Essence: The L78M05ABDT-TR is a voltage regulator IC that provides a fixed 5V output voltage from an input voltage range of 7V to 35V.
Packaging/Quantity: The L78M05ABDT-TR is available in tape and reel packaging, with 2500 units per reel.
Specifications
- Output Voltage: 5V
- Output Current: 0.5A
- Input Voltage Range: 7V to 35V
- Dropout Voltage: 2V
- Quiescent Current: 5mA
- Operating Temperature Range: -40°C to +125°C
- Package Type: DPAK (TO-252)
- Number of Pins: 3
Detailed Pin Configuration
The L78M05ABDT-TR has three pins:
- Input Pin (VIN): This pin is connected to the input voltage source.
- Ground Pin (GND): This pin is connected to the ground or common reference point.
- Output Pin (VOUT): This pin provides the regulated 5V output voltage.
Functional Features
- Fixed Output Voltage: The L78M05ABDT-TR provides a stable 5V output voltage, regardless of changes in the input voltage.
- Thermal Overload Protection: The IC has built-in protection against excessive heat, preventing damage to the device.
- Short Circuit Protection: In case of a short circuit, the L78M05ABDT-TR shuts down to protect itself and the connected circuitry.
- Low Quiescent Current: The IC consumes only 5mA of current when in standby mode, minimizing power consumption.
Advantages and Disadvantages
Advantages: - Provides a stable 5V output voltage. - Offers thermal overload and short circuit protection. - Low quiescent current helps conserve power.
Disadvantages: - Limited maximum output current of 0.5A. - Dropout voltage of 2V may not be suitable for applications with low input voltages.
Working Principles
The L78M05ABDT-TR 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 accordingly to maintain a constant 5V output. The regulator also includes protection features such as thermal shutdown and short circuit protection.
Detailed Application Field Plans
The L78M05ABDT-TR is commonly used in various electronic devices and applications, including but not limited to: - Power supplies - Battery chargers - Industrial control systems - Automotive electronics - Audio amplifiers - LED lighting
Detailed and Complete Alternative Models
Some alternative models to the L78M05ABDT-TR include: - LM7805: A popular 5V voltage regulator IC from Texas Instruments. - MC7805: Another widely used 5V voltage regulator IC from ON Semiconductor. - UA7805: A 5V voltage regulator IC manufactured by Fairchild Semiconductor.
These alternative models offer similar functionality and characteristics to the L78M05ABDT-TR and can be used as replacements in various applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de L78M05ABDT-TR en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of L78M05ABDT-TR in technical solutions:
Q: What is the L78M05ABDT-TR? A: The L78M05ABDT-TR is a voltage regulator IC that provides a fixed output voltage of +5V.
Q: What is the input voltage range for the L78M05ABDT-TR? A: The input voltage range for the L78M05ABDT-TR is typically between 7V and 35V.
Q: What is the maximum output current of the L78M05ABDT-TR? A: The maximum output current of the L78M05ABDT-TR is 500mA.
Q: Can the L78M05ABDT-TR be used to regulate voltages other than +5V? A: No, the L78M05ABDT-TR is specifically designed to provide a regulated +5V output.
Q: Is the L78M05ABDT-TR suitable for automotive applications? A: Yes, the L78M05ABDT-TR is designed to meet automotive specifications and can be used in automotive applications.
Q: Does the L78M05ABDT-TR require any external components for operation? A: Yes, the L78M05ABDT-TR requires input and output capacitors for stability and filtering.
Q: What is the thermal resistance of the L78M05ABDT-TR? A: The thermal resistance of the L78M05ABDT-TR is typically around 50°C/W.
Q: Can the L78M05ABDT-TR handle short-circuit conditions? A: Yes, the L78M05ABDT-TR has built-in short-circuit protection to prevent damage under such conditions.
Q: Can multiple L78M05ABDT-TR regulators be connected in parallel for higher current output? A: Yes, multiple L78M05ABDT-TR regulators can be connected in parallel to increase the overall current output.
Q: What is the package type of the L78M05ABDT-TR? A: The L78M05ABDT-TR is available in a TO-252 (DPAK) package.
Please note that these answers are general and may vary depending on the specific datasheet and manufacturer guidelines for the L78M05ABDT-TR.