Power Integrations
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TOP265EG
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TOP265EG

Product Overview

  • Category: Power Management IC
  • Use: Switching Power Supply Controller
  • Characteristics: High Efficiency, Low Standby Power, Integrated Protections
  • Package: TO-220-7L
  • Essence: Highly integrated power management solution
  • Packaging/Quantity: Tray, 100 pieces per tray

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 65W
  • Switching Frequency: 132 kHz (typical)
  • Operating Temperature Range: -40°C to +150°C
  • Protection Features: Overvoltage Protection, Overcurrent Protection, Overtemperature Protection, Undervoltage Lockout

Detailed Pin Configuration

  1. VCC: Power supply voltage input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for loop stability
  5. CS: Current sense input for overcurrent protection
  6. DRAIN: High-voltage power MOSFET drain connection
  7. SOURCE: High-voltage power MOSFET source connection

Functional Features

  • Integrated high-voltage power MOSFET
  • Frequency jittering for reduced EMI
  • Auto-restart protection for fault conditions
  • Built-in soft-start for controlled startup
  • Cycle-by-cycle current limit
  • Green-mode power-saving operation at light loads

Advantages and Disadvantages

Advantages

  • High efficiency resulting in energy savings
  • Low standby power consumption
  • Compact and cost-effective solution
  • Integrated protections ensure system reliability
  • Wide input voltage range for versatile applications

Disadvantages

  • Requires external components for complete power supply design
  • Limited output power compared to higher-rated controllers

Working Principles

TOP265EG is a switching power supply controller designed for offline power supplies. It utilizes a high-voltage power MOSFET to regulate the output voltage efficiently. The controller operates in a fixed-frequency mode with frequency jittering to reduce electromagnetic interference (EMI). It incorporates various protection features like overvoltage, overcurrent, and overtemperature protection to ensure safe operation. The device also includes auto-restart protection and soft-start functionality for fault conditions and controlled startup.

Detailed Application Field Plans

  • Offline power supplies for consumer electronics
  • LED lighting applications
  • Industrial power systems
  • Telecom and networking equipment
  • Home appliances

Detailed and Complete Alternative Models

  1. TOP264EG: Similar specifications and features, different package (TO-220-7C)
  2. TOP267EG: Higher output power capability, similar specifications and features (TO-220-7L)
  3. TOP249EG: Lower output power capability, similar specifications and features (TO-220-7L)

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

This encyclopedia entry provides an overview of the TOP265EG power management IC. It includes information about its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af TOP265EG i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of TOP265EG in technical solutions:

  1. Q: What is TOP265EG? A: TOP265EG is a highly integrated offline switcher IC (integrated circuit) designed for low-power applications.

  2. Q: What are the typical applications of TOP265EG? A: TOP265EG is commonly used in various low-power applications such as LED lighting, smart home devices, industrial controls, and consumer electronics.

  3. Q: What is the input voltage range supported by TOP265EG? A: TOP265EG supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global applications.

  4. Q: What is the output power range that TOP265EG can handle? A: TOP265EG can handle output power ranging from a few watts up to approximately 25 watts, depending on the specific application and design considerations.

  5. Q: Does TOP265EG require an external MOSFET? A: No, TOP265EG integrates a high-voltage MOSFET, which eliminates the need for an external MOSFET in most applications.

  6. Q: Can TOP265EG operate in a constant current mode? A: Yes, TOP265EG can be configured to operate in constant current mode, making it suitable for driving LED lighting applications.

  7. Q: Is TOP265EG capable of providing overvoltage protection? A: Yes, TOP265EG includes built-in overvoltage protection (OVP) features to safeguard the connected load from excessive voltage levels.

  8. Q: How does TOP265EG handle thermal management? A: TOP265EG incorporates thermal shutdown protection, which automatically reduces the power output or shuts down the device if the temperature exceeds a safe threshold.

  9. Q: Can TOP265EG operate in a wide temperature range? A: Yes, TOP265EG is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.

  10. Q: Are there any evaluation boards or reference designs available for TOP265EG? A: Yes, Power Integrations, the manufacturer of TOP265EG, provides evaluation boards and reference designs that can help engineers quickly prototype and implement their applications using TOP265EG.

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