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TOP247FN
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TOP247FN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
  • Package: TO-220
  • Essence: Switching Regulator
  • Packaging/Quantity: Tube/50 pieces

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Power: Up to 45W
  • Switching Frequency: 132 kHz
  • Efficiency: Up to 88%
  • Standby Power: Less than 100mW
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. Drain
  2. Source
  3. Feedback
  4. Control
  5. Ground
  6. Sense
  7. VCC
  8. Bias

Functional Features

  • Integrated 700V MOSFET
  • Auto-restart Protection
  • Cycle-by-Cycle Current Limiting
  • Overload and Short Circuit Protection
  • Thermal Shutdown
  • Frequency Jittering for EMI Reduction

Advantages

  • High Efficiency results in reduced power consumption and lower operating costs.
  • Wide Input Voltage Range allows for worldwide compatibility.
  • Low Standby Power minimizes energy wastage during idle periods.
  • Integrated MOSFET simplifies the design and reduces component count.
  • Auto-restart Protection ensures continuous operation in case of faults.

Disadvantages

  • Limited output power of up to 45W may not be suitable for high-power applications.
  • Requires external components for proper operation.
  • Not suitable for applications requiring extremely low standby power.

Working Principles

The TOP247FN is a switching regulator IC that converts high-voltage AC input into low-voltage DC output. It utilizes a flyback topology to achieve high efficiency and low standby power. The integrated MOSFET acts as a switch, controlling the energy transfer from the input to the output. The control circuitry ensures stable and regulated output voltage, while various protection features safeguard against faults and overloads.

Detailed Application Field Plans

The TOP247FN is commonly used in various power management applications, including:

  1. Power Adapters
  2. LED Lighting
  3. Set-Top Boxes
  4. Audio Amplifiers
  5. Industrial Controls
  6. Home Appliances

Detailed and Complete Alternative Models

  1. TOP248YN
  2. TOP249YN
  3. TOP250YN
  4. TOP251YN
  5. TOP253YN

These alternative models offer similar functionality and performance, with slight variations in specifications and pin configuration.

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Énumérez 10 questions et réponses courantes liées à l'application de TOP247FN dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of TOP247FN in technical solutions:

  1. Q: What is TOP247FN? A: TOP247FN is a high-performance offline switcher IC (integrated circuit) designed for use in various power supply applications.

  2. Q: What are the key features of TOP247FN? A: The key features of TOP247FN include wide input voltage range, high efficiency, integrated protection features, and flexible design options.

  3. Q: What are the typical applications of TOP247FN? A: TOP247FN is commonly used in applications such as AC/DC power supplies, LED lighting, industrial controls, and consumer electronics.

  4. Q: What is the maximum input voltage supported by TOP247FN? A: The maximum input voltage supported by TOP247FN is typically around 450V.

  5. Q: How does TOP247FN achieve high efficiency? A: TOP247FN achieves high efficiency through its advanced control algorithms, low-loss switching technology, and optimized design for minimizing power dissipation.

  6. Q: Does TOP247FN have built-in protection features? A: Yes, TOP247FN incorporates various protection features like overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown to ensure safe operation.

  7. Q: Can TOP247FN be used in both flyback and forward converter topologies? A: Yes, TOP247FN is versatile and can be used in both flyback and forward converter topologies, providing flexibility in design choices.

  8. Q: What is the maximum output power that TOP247FN can handle? A: The maximum output power that TOP247FN can handle depends on the specific application and design considerations but can typically reach several hundred watts.

  9. Q: Are there any design resources available for TOP247FN? A: Yes, the manufacturer provides application notes, reference designs, and evaluation boards that can assist in designing with TOP247FN.

  10. Q: Is TOP247FN RoHS compliant? A: Yes, TOP247FN is designed to be compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring it meets environmental regulations.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.