ON Semiconductor
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FSFR1800USL
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FSFR1800USL

Product Overview

Category

FSFR1800USL belongs to the category of power electronics devices.

Use

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

Characteristics

  • High efficiency
  • Low standby power consumption
  • Compact size
  • Integrated protection features

Package

FSFR1800USL comes in a compact and robust package, designed for easy installation and heat dissipation.

Essence

The essence of FSFR1800USL lies in its ability to efficiently convert input voltage into regulated output voltage, while ensuring minimal power loss.

Packaging/Quantity

This product is typically packaged individually and is available in various quantities depending on customer requirements.

Specifications

  • Input Voltage Range: 85V - 265V AC
  • 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: Supply voltage pin
  2. GND: Ground reference pin
  3. FB: Feedback pin for regulating output voltage
  4. CS: Current sense pin for controlling switching frequency
  5. DRAIN: Drain pin for connecting the primary winding of the transformer
  6. SOURCE: Source pin for connecting the return path of the primary winding
  7. VREF: Reference voltage pin for internal control circuitry
  8. COMP: Compensation pin for stability optimization

Functional Features

  • Integrated high-voltage startup circuit
  • Overload protection
  • Overvoltage protection
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start function for smooth power-up

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Compact size allows for space-saving designs
  • Integrated protection features enhance system reliability
  • Wide input voltage range enables global compatibility

Disadvantages

  • Limited output power compared to higher-rated devices
  • Requires careful thermal management due to high operating temperatures

Working Principles

FSFR1800USL operates on the principle of a flyback converter. It utilizes a transformer to store energy during the switching cycle and transfer it to the output circuit during the off-cycle. This allows for efficient voltage conversion and regulation.

Detailed Application Field Plans

FSFR1800USL finds extensive application in various power supply systems, including: 1. Consumer electronics 2. Industrial equipment 3. LED lighting 4. Telecommunications 5. Medical devices

Detailed and Complete Alternative Models

  1. FSFR2100USL
  2. FSFR2200USL
  3. FSFR2300USL
  4. FSFR2400USL
  5. FSFR2500USL

These alternative models offer higher output power ratings while maintaining similar characteristics and pin configurations.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق FSFR1800USL في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of FSFR1800USL in technical solutions:

  1. Q: What is FSFR1800USL? A: FSFR1800USL is a highly integrated power switch designed for high-efficiency offline power supplies.

  2. Q: What are the key features of FSFR1800USL? A: The key features include a built-in high-voltage startup circuit, a current mode PWM controller, protection features like over-temperature and over-current protection, and a wide input voltage range.

  3. Q: What applications can FSFR1800USL be used in? A: FSFR1800USL is commonly used in applications such as LED lighting, LCD TVs, set-top boxes, and other consumer electronics.

  4. Q: How does FSFR1800USL help in achieving high efficiency? A: FSFR1800USL incorporates advanced control techniques and low-loss components to minimize power dissipation and maximize overall system efficiency.

  5. Q: Can FSFR1800USL handle high input voltages? A: Yes, FSFR1800USL has a wide input voltage range of typically up to 600V, making it suitable for various AC line voltages.

  6. Q: Does FSFR1800USL provide any protection features? A: Yes, FSFR1800USL offers protection against over-temperature, over-current, and over-voltage conditions, ensuring safe operation of the power supply.

  7. Q: Is FSFR1800USL easy to integrate into existing designs? A: Yes, FSFR1800USL comes in a compact package with minimal external components required, making it relatively easy to integrate into existing designs.

  8. Q: Can FSFR1800USL operate in a wide temperature range? A: Yes, FSFR1800USL is designed to operate reliably in a wide temperature range, typically from -40°C to 125°C.

  9. Q: Does FSFR1800USL support frequency modulation (FM) for EMI reduction? A: Yes, FSFR1800USL supports frequency modulation techniques to reduce electromagnetic interference (EMI) emissions.

  10. Q: Are there any application notes or reference designs available for FSFR1800USL? A: Yes, the manufacturer of FSFR1800USL provides application notes and reference designs that can help engineers in implementing the chip effectively in their designs.

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