ON Semiconductor
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FSFR1800US
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FSFR1800US

Product Overview

Category

FSFR1800US belongs to the category of power electronics components.

Use

It is primarily used in power supply applications, specifically in offline flyback converters.

Characteristics

  • High efficiency
  • Low standby power consumption
  • Compact size
  • Wide input voltage range
  • Overload and short-circuit protection

Package

FSFR1800US comes in a compact and robust package, ensuring durability and ease of installation.

Essence

The essence of FSFR1800US lies in its ability to efficiently convert high-voltage AC power into low-voltage DC power, making it suitable for various electronic devices.

Packaging/Quantity

Each package of FSFR1800US contains one unit of the component.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 180W
  • Switching Frequency: 65kHz
  • Operating Temperature Range: -40°C to +125°C
  • Maximum Junction Temperature: 150°C

Detailed Pin Configuration

  1. VCC: Power supply pin for internal control circuitry.
  2. GND: Ground reference for the component.
  3. FB: Feedback pin for regulating the output voltage.
  4. CS: Current sense pin for monitoring the load current.
  5. DRAIN: High-voltage power switch pin.
  6. SOURCE: Source pin for the internal power MOSFET.
  7. VREF: Reference voltage pin for the feedback loop.
  8. COMP: Compensation pin for stabilizing the control loop.

Functional Features

  • Integrated high-voltage power MOSFET
  • Built-in protection features (overload, short-circuit)
  • Soft-start function for smooth power-up
  • Frequency jittering for reduced EMI emissions
  • Auto-restart feature for fault recovery

Advantages and Disadvantages

Advantages

  • High efficiency leads to energy savings.
  • Compact size allows for space-efficient designs.
  • Wide input voltage range ensures compatibility with various power sources.
  • Integrated protection features enhance system reliability.

Disadvantages

  • Limited output power compared to higher-rated models.
  • Higher cost compared to some alternative options.

Working Principles

FSFR1800US operates on the principle of a flyback converter. It utilizes a high-voltage power MOSFET to switch the primary side of the transformer, which stores energy during the switch-on period and transfers it to the secondary side during the switch-off period. This process enables efficient power conversion from AC to DC.

Detailed Application Field Plans

FSFR1800US finds applications in various fields, including: 1. Consumer electronics: Power supplies for televisions, audio systems, and gaming consoles. 2. Industrial equipment: Power converters for motor drives, lighting systems, and control circuits. 3. Telecommunications: Power modules for routers, switches, and base stations. 4. Automotive: DC-DC converters for electric vehicles and charging stations.

Detailed and Complete Alternative Models

  1. FSFR2100US: Higher power rating (up to 250W) for more demanding applications.
  2. FSFR1200US: Lower power rating (up to 120W) for less power-hungry devices.
  3. FSFR2800US: Higher switching frequency (up to 100kHz) for improved efficiency.

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

In conclusion, FSFR1800US is a power electronics component used in offline flyback converters. With its high efficiency, compact size, and integrated protection features, it offers reliable power supply solutions for a wide range of applications.

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של FSFR1800US בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of FSFR1800US in technical solutions:

  1. Q: What is FSFR1800US? A: FSFR1800US is a highly integrated power switch designed for high-efficiency offline power supplies.

  2. Q: What are the key features of FSFR1800US? A: The key features of FSFR1800US include integrated MOSFETs, protection features, frequency jittering, and soft-start functionality.

  3. Q: What is the typical application of FSFR1800US? A: FSFR1800US is commonly used in applications such as LED lighting, LCD TVs, set-top boxes, and other consumer electronics.

  4. Q: How does FSFR1800US help in achieving high efficiency? A: FSFR1800US incorporates advanced control techniques like frequency jittering and burst mode operation, which contribute to higher efficiency levels.

  5. Q: What are the protection features offered by FSFR1800US? A: FSFR1800US provides protection against over-temperature, over-current, over-voltage, and under-voltage conditions.

  6. Q: Can FSFR1800US be used in both AC-DC and DC-DC power supply designs? A: Yes, FSFR1800US can be used in both AC-DC and DC-DC power supply designs, making it versatile for various applications.

  7. Q: What is the maximum output power that FSFR1800US can handle? A: FSFR1800US can handle output powers up to 180W, depending on the specific application and design considerations.

  8. Q: Does FSFR1800US require an external controller or microcontroller for operation? A: No, FSFR1800US is a self-contained power switch and does not require an external controller or microcontroller for basic operation.

  9. Q: Can FSFR1800US be used in high-voltage applications? A: Yes, FSFR1800US is designed to operate with input voltages up to 600V, making it suitable for high-voltage applications.

  10. Q: Are there any application notes or reference designs available for FSFR1800US? A: Yes, the manufacturer of FSFR1800US provides application notes and reference designs that can help in implementing the chip effectively in various technical solutions.

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