TOP266KG

  • Created at: 2023-11-07 02:59:32 , by WikiIC
  • Updated at: 2023-11-07 02:59:32
  • Views: 14

TOP266KG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low standby power, compact size
  • Package: TO-220-7L
  • Essence: Switching Power Supply Controller
  • Packaging/Quantity: Tray, 50 pieces per tray

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 45W
  • Switching Frequency: 132kHz
  • Operating Temperature Range: -40°C to +125°C
  • Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown

Detailed Pin Configuration

The TOP266KG IC has the following 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 pin for current limit control
  6. DRAIN: Drain pin for primary side switch
  7. SOURCE: Source pin for primary side switch

Functional Features

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

Advantages and Disadvantages

Advantages: - High efficiency resulting in energy savings - Low standby power consumption - Compact size suitable for space-constrained applications - Comprehensive protection features ensure system reliability

Disadvantages: - Limited output power capability (up to 45W) - Requires external components for complete power supply design

Working Principles

The TOP266KG is a switching power supply controller that operates in a flyback topology. It regulates the output voltage by controlling the duty cycle of the power MOSFET. The integrated high-voltage MOSFET eliminates the need for an external switch, reducing component count and simplifying the design. The frequency jittering technique helps reduce electromagnetic interference (EMI) emissions.

Detailed Application Field Plans

The TOP266KG is commonly used in various applications, including but not limited to:

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

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TOP266KG are:

  1. TOP258PN: Similar functionality, different package (DIP-8)
  2. LNK364GN: Integrated flyback controller with similar specifications
  3. UC3842B: PWM controller for offline flyback converters

These alternative models offer similar features and can be used as replacements depending on specific design requirements.

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List 10 common questions and answers related to the application of TOP266KG in technical solutions

Sure! Here are 10 common questions and answers related to the application of TOP266KG in technical solutions:

  1. Q: What is TOP266KG? A: TOP266KG is a high-performance integrated switcher IC (integrated circuit) designed for offline power supplies.

  2. Q: What are the key features of TOP266KG? A: The key features of TOP266KG include high efficiency, low standby power consumption, wide input voltage range, and built-in protection features.

  3. Q: What are the typical applications of TOP266KG? A: TOP266KG is commonly used in various technical solutions such as power adapters, LED lighting, industrial power supplies, and consumer electronics.

  4. Q: What is the maximum output power that TOP266KG can handle? A: TOP266KG can handle a maximum output power of up to 100 watts, depending on the specific design and operating conditions.

  5. Q: Does TOP266KG support universal input voltage? A: Yes, TOP266KG supports a wide universal input voltage range, typically from 85V AC to 265V AC.

  6. Q: Can TOP266KG operate in continuous or discontinuous conduction mode? A: TOP266KG can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), depending on the load conditions.

  7. Q: What are the main advantages of using TOP266KG in power supply designs? A: The main advantages of using TOP266KG include high efficiency, compact size, simplified design, and reliable performance.

  8. Q: Does TOP266KG have any built-in protection features? A: Yes, TOP266KG incorporates various built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  9. Q: Can TOP266KG be used in both isolated and non-isolated power supply designs? A: Yes, TOP266KG can be used in both isolated and non-isolated power supply designs, depending on the specific application requirements.

  10. Q: Are there any reference designs or application notes available for TOP266KG? A: Yes, the manufacturer of TOP266KG provides reference designs and application notes that can help engineers in implementing the IC effectively in their technical solutions.

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

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