Power Integrations
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TOP225YN
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TOP225YN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low standby power, compact size
  • Package: TO-220
  • Essence: Offline Switcher
  • Packaging/Quantity: Tube/50 pieces

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 25W
  • Frequency Range: 50Hz to 60Hz
  • Operating Temperature Range: -40°C to +125°C
  • Efficiency: Up to 88%
  • Standby Power: Less than 100mW

Detailed Pin Configuration

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

Functional Features

  • Integrated high-voltage power MOSFET
  • Built-in frequency jittering for reduced EMI
  • Auto-restart protection for overvoltage and overcurrent conditions
  • Adjustable output voltage
  • Soft-start for smooth power-up
  • Over-temperature protection

Advantages

  • High efficiency results in lower power consumption
  • Compact size allows for space-saving designs
  • Wide input voltage range enables global compatibility
  • Low standby power reduces energy waste
  • Built-in protection features enhance system reliability

Disadvantages

  • Limited output power of up to 25W
  • Requires external components for complete power supply design
  • Not suitable for high-power applications

Working Principles

The TOP225YN is an offline switcher IC that operates by converting high-voltage AC input into a regulated DC output. It utilizes a high-voltage power MOSFET to switch the input voltage at high frequencies, reducing power losses and improving efficiency. The integrated control circuitry ensures stable output voltage and provides various protection features.

Detailed Application Field Plans

The TOP225YN is commonly used in various power management applications, including:

  1. AC-DC power supplies for consumer electronics
  2. LED lighting systems
  3. Industrial control equipment
  4. Home appliances
  5. Battery chargers

Detailed and Complete Alternative Models

  1. TOP224YN: Similar specifications, lower output power (up to 20W)
  2. TOP226YN: Similar specifications, higher output power (up to 30W)
  3. TOP227YN: Similar specifications, higher output power (up to 40W)

These alternative models provide flexibility in power supply design based on specific application requirements.

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10 domande e risposte comuni relative all'applicazione di TOP225YN nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of TOP225YN in technical solutions:

  1. Q: What is TOP225YN? A: TOP225YN is a high-performance offline switcher IC (integrated circuit) designed for power supply applications.

  2. Q: What are the typical applications of TOP225YN? A: TOP225YN is commonly used in various power supply designs, including adapters, chargers, LED lighting, and industrial control systems.

  3. Q: What is the input voltage range supported by TOP225YN? A: The input voltage range of TOP225YN is typically between 85V AC and 265V AC.

  4. Q: What is the output power range that TOP225YN can handle? A: TOP225YN can handle output power ranging from a few watts up to around 25 watts, depending on the specific design and operating conditions.

  5. Q: Does TOP225YN require an external MOSFET for operation? A: No, TOP225YN integrates a high-voltage MOSFET internally, eliminating the need for an external MOSFET.

  6. Q: Can TOP225YN operate in continuous or discontinuous mode? A: TOP225YN can operate in both continuous and discontinuous modes, providing flexibility in different load conditions.

  7. Q: What are the key protection features offered by TOP225YN? A: TOP225YN includes built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  8. Q: Is TOP225YN suitable for universal input voltage applications? A: Yes, TOP225YN is designed to support a wide input voltage range, making it suitable for universal input voltage applications.

  9. Q: Can TOP225YN be used in isolated or non-isolated power supply designs? A: TOP225YN is primarily designed for non-isolated power supply applications, but it can also be used in some isolated designs with additional components.

  10. Q: Are there any reference designs or application notes available for TOP225YN? A: Yes, the manufacturer of TOP225YN provides reference designs and application notes that can help engineers in implementing the IC effectively in their designs.

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