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FSFR1700HS
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FSFR1700HS

Product Overview

Category

FSFR1700HS belongs to the category of power electronics components.

Use

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

Characteristics

  • High voltage capability
  • Integrated high-side and low-side MOSFETs
  • Protection features such as overcurrent protection and thermal shutdown
  • Compact size for space-constrained applications

Package

FSFR1700HS is available in a compact and industry-standard TO-220 package.

Essence

The essence of FSFR1700HS lies in its ability to efficiently convert input voltage into regulated output voltage, making it suitable for various power supply applications.

Packaging/Quantity

FSFR1700HS is typically sold in reels or tubes containing a specific quantity, usually 50 pieces per reel/tube.

Specifications

  • Input Voltage Range: 90V - 265V AC
  • Output Power: Up to 170W
  • Switching Frequency: 66kHz
  • 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 device.
  3. FB: Feedback pin for regulating the output voltage.
  4. DRAIN: Connection point for the drain terminal of the internal MOSFET.
  5. SOURCE: Connection point for the source terminal of the internal MOSFET.
  6. COMP: Compensation pin for stability control.
  7. CS: Current sense pin for overcurrent protection.

Functional Features

  • Integrated high-side and low-side MOSFETs simplify the design and reduce external component count.
  • Overcurrent protection ensures safe operation by limiting the current during fault conditions.
  • Thermal shutdown feature protects the device from excessive temperature.
  • Soft-start function prevents excessive inrush current during startup.

Advantages and Disadvantages

Advantages

  • Compact size allows for space-efficient designs.
  • Integrated MOSFETs reduce external component count and simplify the circuit.
  • Protection features enhance reliability and safety.
  • Wide input voltage range enables versatile applications.

Disadvantages

  • Limited output power compared to higher-rated devices.
  • Fixed switching frequency may not be suitable for all applications.
  • Requires careful thermal management due to high power dissipation.

Working Principles

FSFR1700HS operates on the principle of flyback conversion, where energy is stored in the transformer during the switch-on period and transferred to the output during the switch-off period. The integrated MOSFETs control the switching process, regulating the output voltage based on the feedback signal.

Detailed Application Field Plans

FSFR1700HS finds application in various power supply systems, including: 1. AC-DC adapters for consumer electronics 2. LED lighting drivers 3. Industrial power supplies 4. Telecom power systems 5. Automotive electronics

Detailed and Complete Alternative Models

  1. FSFR1800HS: Higher power rating variant of FSFR1700HS, suitable for applications requiring more than 170W output power.
  2. FSFR2100HS: Similar functionality to FSFR1700HS but with a higher switching frequency for specific applications.
  3. FSFR2200HS: Enhanced version with additional protection features such as overvoltage protection and brownout detection.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de FSFR1700HS en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of FSFR1700HS in technical solutions:

  1. Q: What is FSFR1700HS? A: FSFR1700HS is a highly integrated power switch designed for high-efficiency offline power supplies.

  2. Q: What are the key features of FSFR1700HS? A: The key features of FSFR1700HS include built-in protection features, high efficiency, low standby power consumption, and a wide input voltage range.

  3. Q: What are the typical applications of FSFR1700HS? A: FSFR1700HS is commonly used in applications such as LED lighting, industrial power supplies, consumer electronics, and telecommunication equipment.

  4. Q: What is the maximum output power that FSFR1700HS can handle? A: FSFR1700HS can handle a maximum output power of up to 250 watts.

  5. Q: Does FSFR1700HS support over-temperature protection? A: Yes, FSFR1700HS has built-in over-temperature protection to ensure safe operation under high temperature conditions.

  6. Q: Can FSFR1700HS operate with a wide range of input voltages? A: Yes, FSFR1700HS has a wide input voltage range of 85VAC to 265VAC, making it suitable for various global power systems.

  7. Q: Does FSFR1700HS require an external heatsink for cooling? A: Yes, FSFR1700HS requires an external heatsink to dissipate heat generated during operation.

  8. Q: Is FSFR1700HS compatible with both continuous and discontinuous conduction modes? A: Yes, FSFR1700HS is compatible with both continuous and discontinuous conduction modes, providing flexibility in power supply design.

  9. Q: Can FSFR1700HS handle short-circuit conditions? A: Yes, FSFR1700HS has built-in short-circuit protection to prevent damage to the device during short-circuit events.

  10. Q: Are there any evaluation boards or reference designs available for FSFR1700HS? A: Yes, Fairchild Semiconductor provides evaluation boards and reference designs to help engineers quickly prototype and implement solutions using FSFR1700HS.

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