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FAN4802LMY
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FAN4802LMY

Product Overview

Category

FAN4802LMY belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • FAN4802LMY is a high-performance, low-power, and compact integrated circuit.
  • It offers excellent voltage regulation and protection features.
  • The IC is designed to enhance power efficiency and reliability in various applications.

Package

FAN4802LMY is available in a small outline package (SOP) or dual in-line package (DIP).

Essence

The essence of FAN4802LMY lies in its ability to regulate and protect voltage in power supply systems efficiently.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with each containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 4.5V to 25V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 1A
  • Operating Temperature Range: -40°C to +85°C
  • Switching Frequency: 500kHz

Detailed Pin Configuration

The FAN4802LMY IC has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. EN: Enable pin for turning the IC on/off
  6. VCC: Supply voltage pin
  7. PGND: Power ground pin
  8. SW: Switching pin for power conversion

Functional Features

  • Voltage Regulation: FAN4802LMY ensures stable and accurate output voltage regulation.
  • Overvoltage Protection: The IC incorporates overvoltage protection to safeguard connected devices.
  • Undervoltage Lockout: It includes undervoltage lockout functionality to prevent operation below a certain voltage threshold.
  • Soft Start: FAN4802LMY employs a soft start feature to minimize inrush current during power-up.

Advantages and Disadvantages

Advantages

  • High-performance voltage regulation
  • Compact size for space-constrained applications
  • Excellent efficiency and reliability
  • Comprehensive protection features

Disadvantages

  • Limited maximum output current (1A)
  • Restricted input voltage range (4.5V to 25V)

Working Principles

FAN4802LMY operates based on the principle of pulse width modulation (PWM). It regulates the output voltage by adjusting the duty cycle of the switching signal. By controlling the switching frequency, it achieves efficient power conversion while maintaining stable voltage levels.

Detailed Application Field Plans

FAN4802LMY finds applications in various fields, including but not limited to: - Power supply units for computers and servers - Industrial automation systems - LED lighting systems - Consumer electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to FAN4802LMY are: - LM2576-ADJ - TPS5430 - LT1073

These alternatives can be considered based on specific requirements and compatibility with the application.

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技術ソリューションにおける FAN4802LMY 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 FAN4802LMY in technical solutions:

  1. Q: What is FAN4802LMY? A: FAN4802LMY is a high-performance, synchronous rectifier controller IC used in power supply applications.

  2. Q: What is the purpose of FAN4802LMY? A: FAN4802LMY is designed to control the synchronous rectification MOSFETs in a power supply circuit, improving efficiency and reducing power losses.

  3. Q: What are the key features of FAN4802LMY? A: Some key features include adaptive dead-time control, programmable soft-start, overcurrent protection, and under-voltage lockout.

  4. Q: How does FAN4802LMY improve power supply efficiency? A: By controlling the synchronous rectification MOSFETs, FAN4802LMY minimizes power losses during switching transitions, resulting in improved overall efficiency.

  5. Q: Can FAN4802LMY be used in both buck and boost converter applications? A: Yes, FAN4802LMY can be used in both buck and boost converter applications, making it versatile for various power supply designs.

  6. Q: What is adaptive dead-time control? A: Adaptive dead-time control is a feature of FAN4802LMY that adjusts the timing between the turn-off of one MOSFET and the turn-on of the other, optimizing efficiency and reducing shoot-through current.

  7. Q: Does FAN4802LMY have any protection features? A: Yes, FAN4802LMY includes overcurrent protection, which shuts down the MOSFETs if the current exceeds a certain threshold, preventing damage to the circuit.

  8. Q: Can FAN4802LMY operate in a wide input voltage range? A: Yes, FAN4802LMY can operate in a wide input voltage range, typically from 4.5V to 28V, making it suitable for various power supply applications.

  9. Q: Is FAN4802LMY easy to integrate into existing power supply designs? A: Yes, FAN4802LMY is available in a compact package and requires minimal external components, making it relatively easy to integrate into existing power supply designs.

  10. Q: Are there any application notes or reference designs available for FAN4802LMY? A: Yes, the manufacturer provides application notes and reference designs that can help engineers understand and implement FAN4802LMY in their technical solutions effectively.