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TOP266VG
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TOP266VG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low standby power, compact size
  • Package: TO-220
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tray, 50 pieces per tray

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Voltage: 5VDC
  • Output Current: 3A
  • Switching Frequency: 132kHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for regulating output voltage
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for current limit protection
  6. DRAIN: Drain pin for switching transistor
  7. SOURCE: Source pin for switching transistor
  8. VREF: Reference voltage output

Functional Features

  • Integrated high-voltage power MOSFET
  • Built-in frequency jittering for reduced EMI
  • Auto-restart protection for overvoltage and overcurrent conditions
  • Cycle-by-cycle current limit protection
  • Soft-start for controlled startup
  • Over-temperature protection

Advantages and Disadvantages

Advantages

  • High efficiency resulting in energy savings
  • Low standby power consumption
  • Compact size suitable for space-constrained applications
  • Wide input voltage range for universal compatibility
  • Robust protection features for enhanced reliability

Disadvantages

  • Limited output current capacity of 3A
  • Requires external components for complete circuit implementation
  • Not suitable for high-power applications

Working Principles

The TOP266VG is a voltage regulator IC that utilizes a flyback topology to convert high-voltage AC input to low-voltage DC output. It incorporates a high-voltage power MOSFET for efficient switching and regulation. The IC operates by controlling the duty cycle of the switching transistor based on feedback from the FB pin, ensuring a stable output voltage. Various protection mechanisms are implemented to safeguard against overvoltage, overcurrent, and over-temperature conditions.

Detailed Application Field Plans

The TOP266VG is commonly used in various power management applications, including:

  1. Power adapters for consumer electronics
  2. LED lighting drivers
  3. Industrial power supplies
  4. Home appliances
  5. Automotive electronics

Detailed and Complete Alternative Models

  1. TOP267VG: Similar specifications but with higher output current capacity (up to 5A)
  2. TOP255VG: Lower output current capacity (up to 2A) but more cost-effective
  3. TOP258MG: Integrated PFC (Power Factor Correction) functionality for improved power efficiency

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi TOP266VG dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of TOP266VG in technical solutions:

  1. Q: What is TOP266VG? A: TOP266VG is a highly integrated offline switcher IC (Integrated Circuit) designed for low-power applications.

  2. Q: What are the typical applications of TOP266VG? A: TOP266VG is commonly used in power supplies for consumer electronics, LED lighting, industrial controls, and other low-power systems.

  3. Q: What is the input voltage range supported by TOP266VG? A: The input voltage range of TOP266VG is typically between 85V AC and 265V AC.

  4. Q: What is the output power range that TOP266VG can handle? A: TOP266VG can handle output power ranging from a few watts up to around 30 watts, depending on the specific application and design.

  5. Q: Does TOP266VG require an external MOSFET? A: No, TOP266VG integrates a high-voltage power MOSFET, eliminating the need for an external MOSFET in most applications.

  6. Q: Can TOP266VG operate in continuous or discontinuous conduction mode? A: TOP266VG can operate in both continuous and discontinuous conduction modes, providing flexibility in different load conditions.

  7. Q: What are the key protection features offered by TOP266VG? A: TOP266VG includes various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  8. Q: Is TOP266VG compatible with dimming functionality for LED lighting applications? A: Yes, TOP266VG supports dimming functionality through pulse width modulation (PWM) control, making it suitable for LED lighting designs.

  9. Q: Does TOP266VG have built-in power management features? A: Yes, TOP266VG incorporates advanced power management features like frequency jittering and frequency foldback to enhance efficiency.

  10. Q: Are there any evaluation boards or reference designs available for TOP266VG? A: Yes, the manufacturer of TOP266VG provides evaluation boards and reference designs that can help engineers in implementing the IC effectively.

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