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L78M05ABDT-TR
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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:

  1. Input Pin (VIN): This pin is connected to the input voltage source.
  2. Ground Pin (GND): This pin is connected to the ground or common reference point.
  3. 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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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi L78M05ABDT-TR dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of L78M05ABDT-TR in technical solutions:

  1. Q: What is the L78M05ABDT-TR? A: The L78M05ABDT-TR is a voltage regulator IC that provides a fixed output voltage of +5V.

  2. 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.

  3. Q: What is the maximum output current of the L78M05ABDT-TR? A: The maximum output current of the L78M05ABDT-TR is 500mA.

  4. 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.

  5. 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.

  6. 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.

  7. Q: What is the thermal resistance of the L78M05ABDT-TR? A: The thermal resistance of the L78M05ABDT-TR is typically around 50°C/W.

  8. 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.

  9. 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.

  10. 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.