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L78L09ACZ-AP
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L78L09ACZ-AP

Product Overview

Category

L78L09ACZ-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: 9V
  • Maximum Output Current: 100mA
  • Dropout Voltage: 2V (typical)
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: TO-92
  • Essence: Positive voltage regulator

Packaging/Quantity

L78L09ACZ-AP is typically available in a TO-92 package. It is commonly sold in reels or tubes, with quantities varying depending on the supplier.

Specifications

  • Input Voltage Range: 10V to 35V
  • Output Voltage: 9V ±5%
  • Output Current: Up to 100mA
  • Dropout Voltage: 2V (typical)
  • Line Regulation: 0.04% (typical)
  • Load Regulation: 0.1% (typical)
  • Quiescent Current: 4.5mA (typical)
  • Ripple Rejection Ratio: 62dB (typical)
  • Thermal Shutdown Protection: Yes
  • Short Circuit Protection: Yes

Detailed Pin Configuration

The L78L09ACZ-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.

Functional Features

  • Regulates and stabilizes the input voltage to a fixed 9V output.
  • Provides protection against thermal shutdown and short circuits.
  • Low dropout voltage ensures efficient operation even with low input voltages.
  • High ripple rejection ratio minimizes the impact of input voltage fluctuations.

Advantages and Disadvantages

Advantages

  • Simple and cost-effective solution for voltage regulation.
  • Compact TO-92 package allows for easy integration into various circuits.
  • Wide operating temperature range makes it suitable for diverse environments.
  • Provides reliable and stable output voltage.

Disadvantages

  • Limited output current capacity (up to 100mA).
  • Dropout voltage may cause inefficiency in low input voltage scenarios.

Working Principles

The L78L09ACZ-AP is a positive voltage regulator that utilizes 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 constant output voltage of 9V.

Detailed Application Field Plans

The L78L09ACZ-AP finds applications in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and digital circuits. - Battery-powered devices requiring a stable 9V supply. - Automotive electronics. - Industrial control systems. - Audio amplifiers and preamplifiers. - LED lighting systems.

Detailed and Complete Alternative Models

  • LM7809: Similar voltage regulator with higher output current capacity.
  • MC78L09: Another alternative with similar specifications and pin configuration.
  • UA78L09: Positive voltage regulator with comparable characteristics.

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

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技術ソリューションにおける L78L09ACZ-AP の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of L78L09ACZ-AP in technical solutions:

  1. Q: What is L78L09ACZ-AP? A: L78L09ACZ-AP is a voltage regulator IC that provides a fixed output voltage of +9V.

  2. Q: What is the input voltage range for L78L09ACZ-AP? A: The input voltage range for L78L09ACZ-AP is typically between 11V and 35V.

  3. Q: What is the maximum output current of L78L09ACZ-AP? A: The maximum output current of L78L09ACZ-AP is 100mA.

  4. Q: Can L78L09ACZ-AP handle higher input voltages than 35V? A: No, exceeding the maximum input voltage can damage the IC. It is recommended to stay within the specified range.

  5. Q: Is L78L09ACZ-AP suitable for both AC and DC input voltages? A: Yes, L78L09ACZ-AP can handle both AC and DC input voltages.

  6. Q: Can I use L78L09ACZ-AP to regulate voltages other than +9V? A: No, L78L09ACZ-AP is specifically designed to provide a fixed output voltage of +9V.

  7. Q: Does L78L09ACZ-AP require any external components for operation? A: Yes, L78L09ACZ-AP requires input and output capacitors for stability and filtering purposes.

  8. Q: What is the typical dropout voltage of L78L09ACZ-AP? A: The typical dropout voltage of L78L09ACZ-AP is around 2V.

  9. Q: Can I use L78L09ACZ-AP in high-temperature environments? A: Yes, L78L09ACZ-AP has a maximum operating temperature of 125°C, making it suitable for many applications.

  10. Q: Is L78L09ACZ-AP available in different package types? A: Yes, L78L09ACZ-AP is available in various package types, such as TO-92 and TO-220, to suit different application requirements.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for L78L09ACZ-AP.