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L78L08ABZ-AP
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L78L08ABZ-AP

Product Overview

Category

The L78L08ABZ-AP belongs to the category of linear voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

  • Input Voltage Range: 10V to 35V
  • Output Voltage: 8V
  • Maximum Output Current: 100mA
  • Low Dropout Voltage: 1.7V (typical)
  • Thermal Overload Protection
  • Short Circuit Protection

Package

The L78L08ABZ-AP comes in a TO-92 package, which is a small plastic package with three leads.

Essence

This voltage regulator is designed to provide a stable and regulated output voltage of 8V, regardless of variations in the input voltage.

Packaging/Quantity

The L78L08ABZ-AP is typically packaged in reels or tubes, containing a specific quantity of units per package.

Specifications

  • Input Voltage Range: 10V to 35V
  • Output Voltage: 8V
  • Output Current: Up to 100mA
  • Dropout Voltage: 1.7V (typical)
  • Line Regulation: ±0.2%
  • Load Regulation: ±0.4%
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: TO-92

Detailed Pin Configuration

The L78L08ABZ-AP has three pins:

  1. Input (Vin): This pin is connected to the input voltage source.
  2. Ground (GND): This pin is connected to the ground reference.
  3. Output (Vout): This pin provides the regulated output voltage of 8V.

Functional Features

  • Voltage Regulation: The L78L08ABZ-AP ensures a constant output voltage of 8V, even when the input voltage varies.
  • Thermal Overload Protection: The regulator includes a thermal shutdown feature that protects it from overheating.
  • Short Circuit Protection: It has built-in protection against short circuits, preventing damage to the device.

Advantages and Disadvantages

Advantages

  • Compact Size: The TO-92 package makes it suitable for space-constrained applications.
  • Easy to Use: The three-pin configuration simplifies the integration into electronic circuits.
  • Stable Output: Provides a stable 8V output voltage, ensuring reliable performance of connected components.

Disadvantages

  • Limited Output Current: With a maximum output current of 100mA, it may not be suitable for high-power applications.
  • Dropout Voltage: The 1.7V dropout voltage can affect efficiency in low input voltage scenarios.

Working Principles

The L78L08ABZ-AP operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the regulator adjusts the transistor to maintain a constant 8V output.

Detailed Application Field Plans

The L78L08ABZ-AP is commonly used in various electronic applications, including:

  1. Power Supply Circuits: It can be employed as a voltage regulator in power supply circuits to provide a stable 8V output.
  2. Microcontroller Systems: Used to regulate the voltage supplied to microcontrollers, ensuring their proper operation.
  3. Audio Amplifiers: The L78L08ABZ-AP can be utilized to stabilize the voltage in audio amplifier circuits, improving audio quality.

Detailed and Complete Alternative Models

  1. LM7808: A popular alternative with similar specifications and pin configuration.
  2. MC78L08: Another alternative with comparable characteristics and package type.
  3. UA78L08: An alternative option offering the same output voltage and package style.

These alternative models can be considered based on specific requirements and availability.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de L78L08ABZ-AP en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of L78L08ABZ-AP in technical solutions:

  1. Q: What is the L78L08ABZ-AP? A: The L78L08ABZ-AP is a voltage regulator IC that provides a fixed output voltage of 8V.

  2. Q: What is the input voltage range for the L78L08ABZ-AP? A: The input voltage range for this voltage regulator is typically between 10V and 35V.

  3. Q: What is the maximum output current of the L78L08ABZ-AP? A: The maximum output current is 100mA, which means it can supply up to 100mA of current to the load.

  4. Q: Can the L78L08ABZ-AP handle higher input voltages? A: No, the maximum input voltage should not exceed 35V as it may damage the IC.

  5. Q: Is the L78L08ABZ-AP suitable for battery-powered applications? A: Yes, it can be used in battery-powered applications as long as the input voltage does not exceed the specified range.

  6. Q: Does the L78L08ABZ-AP require any external components for operation? A: Yes, it requires input and output capacitors for stability. Refer to the datasheet for recommended values.

  7. Q: Can I use the L78L08ABZ-AP to regulate voltages other than 8V? A: No, this specific IC is designed to provide a fixed output voltage of 8V. For different voltages, you would need a different regulator.

  8. Q: What is the thermal resistance of the L78L08ABZ-AP? A: The thermal resistance is typically around 50°C/W, which indicates how well it dissipates heat.

  9. Q: Can the L78L08ABZ-AP handle short-circuit conditions? A: Yes, it has built-in short-circuit protection that limits the output current to a safe level during such conditions.

  10. Q: Is the L78L08ABZ-AP available in different package options? A: Yes, it is available in various packages like TO-92, SO-8, and DPAK, allowing flexibility in board layout and mounting options.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for the L78L08ABZ-AP.