Power Integrations
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TOP247Y
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TOP247Y

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
  • Package: TO-220, TO-263, and TO-262
  • Essence: Switching Regulator Controller
  • Packaging/Quantity: Tube/50 units

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Power: Up to 60W
  • Frequency Range: 50Hz to 400Hz
  • Operating Temperature Range: -40°C to +150°C
  • Maximum Duty Cycle: 75%
  • Output Voltage Accuracy: ±5%

Detailed Pin Configuration

  1. VCC: Power Supply Input
  2. FB: Feedback Input
  3. COMP: Compensation Pin
  4. CS: Current Sense Input
  5. DRAIN: Power MOSFET Drain Connection
  6. SOURCE: Power MOSFET Source Connection
  7. GND: Ground Connection
  8. SYNC: Synchronization Input

Functional Features

  • Primary-Side Regulation (PSR) Control
  • Frequency-Jittering for EMI Reduction
  • Auto-Restart Protection
  • Overload and Short-Circuit Protection
  • Thermal Shutdown Protection
  • Soft-Start Function
  • External Synchronization Capability

Advantages

  • High Efficiency Conversion
  • Low Standby Power Consumption
  • Compact Design
  • Wide Input Voltage Range
  • Robust Protection Features

Disadvantages

  • Limited Output Power (Up to 60W)
  • Requires External Components for Complete Circuit Implementation
  • Relatively High Cost Compared to Non-Integrated Solutions

Working Principles

The TOP247Y is a switching regulator controller that utilizes primary-side regulation (PSR) control. It operates by modulating the duty cycle of the power MOSFET to regulate the output voltage. The PSR control eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing costs.

Detailed Application Field Plans

The TOP247Y is commonly used in various power management applications, including:

  1. AC-DC Power Supplies
  2. LED Lighting Systems
  3. Industrial Control Systems
  4. Consumer Electronics
  5. Telecommunications Equipment
  6. Automotive Electronics

Detailed and Complete Alternative Models

  1. TOP248Y: Similar specifications and features as TOP247Y, but with higher output power capability (up to 100W).
  2. TOP249Y: Similar specifications and features as TOP247Y, but with additional integrated protection features.
  3. TOP250Y: Similar specifications and features as TOP247Y, but optimized for flyback converter topologies.

These alternative models provide flexibility in choosing the most suitable solution based on specific application requirements.

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तकनीकी समाधानों में TOP247Y के अनुप्रयोग से संबंधित 10 सामान्य प्रश्नों और उत्तरों की सूची बनाएं

Sure! Here are 10 common questions and answers related to the application of TOP247Y in technical solutions:

  1. Q: What is TOP247Y? A: TOP247Y is a highly integrated offline switcher IC (integrated circuit) that provides high efficiency, low standby power, and excellent line/load regulation for various applications.

  2. Q: What are the typical applications of TOP247Y? A: TOP247Y is commonly used in applications such as power supplies for TVs, monitors, set-top boxes, LED lighting, industrial controls, and other electronic devices.

  3. Q: What is the input voltage range supported by TOP247Y? A: TOP247Y supports a wide input voltage range from 85VAC to 265VAC, making it suitable for use in different regions with varying mains voltages.

  4. Q: What is the maximum output power TOP247Y can handle? A: The maximum output power of TOP247Y depends on the specific design and thermal considerations, but it can typically handle power levels up to 100W.

  5. Q: Does TOP247Y require an external MOSFET? A: Yes, TOP247Y requires an external MOSFET to function properly. The choice of MOSFET depends on the desired output power and efficiency.

  6. Q: Can TOP247Y operate in a continuous or discontinuous mode? A: TOP247Y can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), depending on the load conditions and design requirements.

  7. Q: How does TOP247Y achieve high efficiency? A: TOP247Y incorporates advanced features like frequency jittering, cycle-by-cycle current limit, and auto-restart protection, which help optimize efficiency and minimize power losses.

  8. Q: Does TOP247Y have built-in protection features? A: Yes, TOP247Y includes various built-in protection features such as overvoltage protection (OVP), overload protection (OLP), and thermal shutdown to ensure safe operation.

  9. Q: Can TOP247Y be used in designs requiring power factor correction (PFC)? A: Yes, TOP247Y can be used in PFC applications by combining it with an external boost converter or PFC controller to achieve high power factor and comply with regulatory standards.

  10. Q: Are there any design resources available for TOP247Y? A: Yes, the manufacturer provides datasheets, application notes, reference designs, and evaluation boards that can help engineers in designing with TOP247Y effectively.

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