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TOP252EG
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TOP252EG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
  • Package: TO-220
  • Essence: Switching Power Supply Controller
  • Packaging/Quantity: Tray, 50 pieces per tray

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 94W
  • Switching Frequency: 132 kHz to 150 kHz
  • Operating Temperature Range: -40°C to +125°C
  • Protection Features: Overload Protection, Overvoltage Protection, Overtemperature Protection

Detailed Pin Configuration

  1. VCC: Power Supply Voltage
  2. FB: Feedback Pin for Output Voltage Regulation
  3. COMP: Compensation Pin for Loop Stability
  4. CS: Current Sense Pin for Current Limiting
  5. GND: Ground Reference
  6. DRAIN: Switching Transistor Drain Connection
  7. SOURCE: Switching Transistor Source Connection
  8. RT/CT: Timing Resistor and Capacitor Connection for Oscillator Frequency Control

Functional Features

  • Integrated high-voltage power MOSFET
  • Built-in frequency jittering for reduced EMI emissions
  • Auto-restart protection for fault conditions
  • Cycle-by-cycle current limit
  • Adjustable output voltage
  • Soft-start for controlled startup

Advantages

  • High efficiency leading to energy savings
  • Low standby power consumption
  • Wide input voltage range for universal compatibility
  • Compact TO-220 package for easy integration
  • Comprehensive protection features for enhanced reliability

Disadvantages

  • Requires external components for complete power supply implementation
  • Limited output power compared to some other models in the same category

Working Principles

TOP252EG is a switching power supply controller that utilizes a flyback topology to convert high-voltage AC input into low-voltage DC output. It operates by controlling the switching transistor to regulate the output voltage and current. The integrated high-voltage power MOSFET ensures efficient power conversion. The frequency jittering feature reduces electromagnetic interference (EMI) emissions, while the auto-restart protection ensures safe operation in fault conditions.

Detailed Application Field Plans

  • Consumer Electronics: Power adapters for laptops, TVs, and gaming consoles
  • Industrial Equipment: Power supplies for industrial automation systems
  • Lighting: LED drivers for residential and commercial lighting applications
  • Telecommunications: Power management for telecom infrastructure equipment

Detailed and Complete Alternative Models

  1. TOP243EG: Similar specifications and features, but lower output power capability
  2. TOP254EG: Higher output power capability, suitable for more demanding applications
  3. TOP255EG: Integrated power MOSFET with improved efficiency and thermal performance

Note: This entry provides a brief overview of TOP252EG. For detailed technical information, please refer to the product datasheet or consult the manufacturer.

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技術ソリューションにおける TOP252EG の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of TOP252EG in technical solutions:

  1. Q: What is TOP252EG? A: TOP252EG is a high-performance integrated switcher used for offline power conversion applications.

  2. Q: What are the typical applications of TOP252EG? A: TOP252EG 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 TOP252EG? A: The input voltage range of TOP252EG is typically between 85VAC and 265VAC.

  4. Q: What is the output power range that TOP252EG can handle? A: TOP252EG can handle output power ranging from a few watts up to around 100 watts, depending on the specific design and thermal considerations.

  5. Q: Does TOP252EG require an external MOSFET? A: Yes, TOP252EG requires an external MOSFET to function properly. It is designed to work with an N-channel MOSFET.

  6. Q: Can TOP252EG operate in a wide temperature range? A: Yes, TOP252EG is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.

  7. Q: What are the key features of TOP252EG? A: Some key features of TOP252EG include primary-side regulation, frequency jittering for low EMI, cycle-by-cycle current limit, and auto-restart protection.

  8. Q: How does TOP252EG achieve primary-side regulation? A: TOP252EG uses a proprietary control method called EcoSmart™ technology to achieve primary-side regulation, eliminating the need for an optocoupler or secondary-side feedback circuitry.

  9. Q: Can TOP252EG provide multiple output voltages? A: Yes, TOP252EG can be used in designs that require multiple output voltages by using additional secondary-side regulation or post-regulation techniques.

  10. Q: Is TOP252EG compliant with safety and regulatory standards? A: Yes, TOP252EG is designed to meet various safety and regulatory standards such as UL, CE, and EN55022 Class B for conducted EMI.

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