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FAN4800AUN
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FAN4800AUN

Product Overview

Category

FAN4800AUN belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • FAN4800AUN is a high-performance, current-mode PWM controller.
  • It operates at a fixed frequency and provides precise control over output voltage regulation.
  • The IC offers protection features such as overvoltage, undervoltage, and overcurrent protection.
  • It is designed to work with both primary-side and secondary-side feedback control methods.

Package

FAN4800AUN is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of FAN4800AUN lies in its ability to regulate and control power supply voltages efficiently and accurately.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of FAN4800AUN ICs.

Specifications

  • Input Voltage Range: 10V to 30V
  • Output Voltage Range: 0.8V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Duty Cycle: 100%
  • Switching Frequency: 200kHz to 1MHz

Detailed Pin Configuration

The FAN4800AUN IC has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for voltage regulation
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for overcurrent protection
  6. SS/TR: Soft-start/Shutdown control pin
  7. RT/CT: Timing components connection pins
  8. OUT: Output pin for regulated voltage

Functional Features

  • Current-mode control for improved line and load regulation.
  • Adjustable soft-start time to reduce inrush current during startup.
  • Overvoltage protection (OVP) and undervoltage lockout (UVLO) for enhanced system safety.
  • Error amplifier with high gain and bandwidth for precise voltage regulation.
  • Internal slope compensation for stable operation.

Advantages and Disadvantages

Advantages

  • High-performance PWM controller for efficient power supply applications.
  • Wide input and output voltage ranges for versatile use.
  • Comprehensive protection features ensure system reliability.
  • Compact SOIC package for easy integration into various designs.

Disadvantages

  • Limited operating temperature range (-40°C to +85°C).
  • Fixed switching frequency may not be suitable for all applications.
  • Requires external timing components for proper operation.

Working Principles

The FAN4800AUN operates based on the current-mode control principle. It compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then amplified and used to control the duty cycle of the PWM signal, which regulates the output voltage. The IC also incorporates various protection mechanisms to safeguard the power supply circuitry.

Detailed Application Field Plans

FAN4800AUN finds extensive application in the following fields:

  1. Switching power supplies for consumer electronics.
  2. Industrial power systems and automation equipment.
  3. LED lighting drivers.
  4. Telecommunication equipment.
  5. Automotive electronics.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to FAN4800AUN are:

  1. FAN4801AUN
  2. FAN4802AUN
  3. FAN4803AUN
  4. FAN4804AUN
  5. FAN4805AUN

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

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技術ソリューションにおける FAN4800AUN 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 FAN4800AUN in technical solutions:

  1. Q: What is the FAN4800AUN? A: The FAN4800AUN is a high-performance, integrated pulse-width modulation (PWM) controller designed for power supply applications.

  2. Q: What are the key features of the FAN4800AUN? A: The key features of the FAN4800AUN include adjustable frequency operation, soft-start capability, cycle-by-cycle current limiting, and overvoltage protection.

  3. Q: What is the input voltage range supported by the FAN4800AUN? A: The FAN4800AUN supports an input voltage range of 8V to 35V.

  4. Q: Can the FAN4800AUN be used in both buck and boost converter configurations? A: Yes, the FAN4800AUN can be used in both buck and boost converter configurations, making it versatile for various power supply designs.

  5. Q: Does the FAN4800AUN have built-in protection features? A: Yes, the FAN4800AUN has built-in overvoltage protection, cycle-by-cycle current limiting, and thermal shutdown protection.

  6. Q: What is the maximum switching frequency supported by the FAN4800AUN? A: The FAN4800AUN supports a maximum switching frequency of 500kHz.

  7. Q: Can the FAN4800AUN operate in continuous or discontinuous conduction mode? A: Yes, the FAN4800AUN can operate in both continuous and discontinuous conduction modes, providing flexibility in different load conditions.

  8. Q: Is the FAN4800AUN suitable for high-efficiency power supply designs? A: Yes, the FAN4800AUN is designed for high-efficiency applications and offers excellent line and load regulation.

  9. Q: Does the FAN4800AUN have adjustable soft-start capability? A: Yes, the FAN4800AUN has an adjustable soft-start feature that allows for controlled startup of the power supply.

  10. Q: What are some typical applications of the FAN4800AUN? A: The FAN4800AUN is commonly used in various power supply applications such as telecommunication equipment, industrial control systems, and consumer electronics.

Please note that these answers are general and may vary depending on specific design requirements and application scenarios.