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TOP267VG
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TOP267VG

Product Overview

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

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Voltage Range: 5VDC to 24VDC
  • Switching Frequency: 132kHz to 200kHz
  • Maximum Output Power: 25W
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VCC: 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
  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
  • Adjustable output voltage through external resistors
  • Soft-start for controlled startup

Advantages

  • High efficiency conversion
  • Low standby power consumption
  • Wide input voltage range allows for global compatibility
  • Compact TO-220 package for easy integration
  • Robust protection features ensure reliable operation

Disadvantages

  • Requires external components for complete power supply design
  • Limited maximum output power of 25W

Working Principles

The TOP267VG is a switching regulator controller that utilizes a high-voltage power MOSFET to efficiently convert the input voltage into a regulated output voltage. It operates by controlling the duty cycle of the power MOSFET based on feedback from the output voltage. The integrated circuit includes various protection features such as overvoltage and overcurrent protection, ensuring safe operation under different load conditions.

Detailed Application Field Plans

The TOP267VG is commonly used in various applications requiring power management, such as:

  1. AC-DC power supplies
  2. LED lighting systems
  3. Industrial control systems
  4. Consumer electronics
  5. Telecommunications equipment

Detailed and Complete Alternative Models

  1. TOP258PN: Similar functionality with different pin configuration
  2. TOP266EG: Lower maximum output power but higher efficiency
  3. TOP269VG: Higher maximum output power but larger package size

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TOP267VG en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of TOP267VG in technical solutions:

  1. Q: What is TOP267VG? A: TOP267VG is a highly integrated offline switcher IC (integrated circuit) designed for low-power applications.

  2. Q: What are the key features of TOP267VG? A: The key features of TOP267VG include high efficiency, wide input voltage range, integrated protection features, and compact size.

  3. Q: What are the typical applications of TOP267VG? A: TOP267VG is commonly used in applications such as power supplies for consumer electronics, LED lighting, industrial controls, and home appliances.

  4. Q: What is the maximum output power that TOP267VG can handle? A: TOP267VG can handle a maximum output power of up to 25 watts, depending on the specific application and design considerations.

  5. Q: Does TOP267VG support universal input voltage range? A: Yes, TOP267VG supports a wide universal input voltage range typically from 85VAC to 265VAC, making it suitable for global applications.

  6. Q: What are the advantages of using TOP267VG in power supply designs? A: Some advantages of using TOP267VG include high efficiency, low standby power consumption, built-in protection features, and simplified circuit design.

  7. Q: Can TOP267VG operate in a wide temperature range? A: Yes, TOP267VG is designed to operate reliably in a wide temperature range, typically from -40°C to +125°C.

  8. Q: Does TOP267VG have built-in protection features? A: Yes, TOP267VG incorporates various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  9. Q: What is the typical efficiency of TOP267VG? A: The typical efficiency of TOP267VG can reach up to 90%, depending on the specific operating conditions and load requirements.

  10. Q: Are there any reference designs available for TOP267VG? A: Yes, the manufacturer provides reference designs and application notes that can help engineers in implementing TOP267VG in their designs effectively.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application guidelines provided by the manufacturer of TOP267VG.