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TOP253EG
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TOP253EG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
  • Package: TO-220-7C
  • Essence: Offline Switcher with EcoSmart Technology
  • Packaging/Quantity: Tube/50 pieces

Specifications

  • Input Voltage Range: 85 VAC to 265 VAC
  • Output Power: Up to 45 W
  • Switching Frequency: 132 kHz
  • Operating Temperature Range: -40°C to +150°C
  • Protection Features: Overload Protection, Overvoltage Protection, Overtemperature Protection

Detailed Pin Configuration

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

Functional Features

  • Integrated 700 V MOSFET
  • Built-in frequency jittering for low EMI
  • Auto-restart protection for short-circuit and open-loop faults
  • Cycle-by-cycle current limit
  • Line undervoltage lockout with hysteresis
  • Accurate programmable current limit
  • Adjustable output voltage

Advantages

  • High efficiency up to 88%
  • Low standby power consumption
  • Simplified design with integrated features
  • Wide input voltage range for global compatibility
  • Comprehensive protection features ensure system reliability

Disadvantages

  • Requires external components for complete circuit implementation
  • Limited output power compared to higher-rated devices
  • Relatively high operating temperature range

Working Principles

TOP253EG is an offline switcher IC that utilizes EcoSmart technology to provide efficient power management solutions. It integrates a 700 V MOSFET and various control features to regulate the power supply. The device operates at a high switching frequency of 132 kHz, ensuring smooth power conversion. It incorporates frequency jittering to minimize electromagnetic interference (EMI) and offers protection against faults such as short-circuits and open-loop conditions.

Detailed Application Field Plans

TOP253EG is commonly used in various applications requiring power management, including:

  1. AC-DC Power Supplies
  2. LED Lighting Systems
  3. Industrial Controls
  4. Home Appliances
  5. Consumer Electronics

The device's wide input voltage range makes it suitable for global use, while its high efficiency and low standby power consumption contribute to energy-saving designs.

Detailed and Complete Alternative Models

  1. TOP254EG: Similar specifications and features, but with higher output power capability.
  2. TOP255EG: Lower output power capability, suitable for lower power applications.
  3. TOP256EG: Higher output power capability, suitable for higher power applications.
  4. TOP257EG: Similar specifications and features, but with different pin configuration.

These alternative models provide flexibility in choosing the appropriate device based on specific application requirements.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan TOP253EG dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of TOP253EG in technical solutions:

  1. Q: What is TOP253EG? A: TOP253EG is a high-performance integrated switcher used for offline power conversion applications.

  2. Q: What are the typical applications of TOP253EG? A: TOP253EG is commonly used in applications such as power supplies, LED lighting, industrial controls, and consumer electronics.

  3. Q: What is the input voltage range supported by TOP253EG? A: TOP253EG supports an input voltage range from 85VAC to 265VAC.

  4. Q: What is the output power range that TOP253EG can handle? A: TOP253EG can handle output power ranging from a few watts up to 100 watts.

  5. Q: Does TOP253EG require an external MOSFET? A: Yes, TOP253EG requires an external MOSFET for power switching.

  6. Q: Can TOP253EG operate in a wide temperature range? A: Yes, TOP253EG is designed to operate in a wide temperature range, typically from -40°C to 150°C.

  7. Q: Does TOP253EG have built-in protection features? A: Yes, TOP253EG includes various protection features like overvoltage protection, overcurrent protection, and thermal shutdown.

  8. Q: What is the maximum switching frequency of TOP253EG? A: The maximum switching frequency of TOP253EG is typically around 132 kHz.

  9. Q: Is TOP253EG compatible with both primary-side and secondary-side regulation? A: Yes, TOP253EG supports both primary-side and secondary-side regulation techniques.

  10. Q: Are there any evaluation boards available for TOP253EG? A: Yes, Power Integrations provides evaluation boards for TOP253EG to facilitate the design and testing process.

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