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TOP258GN-TL
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TOP258GN-TL

Product Overview

Category: Integrated Circuit
Use: Power Management
Characteristics: High efficiency, compact design
Package: 7-pin SMD
Essence: Energy-efficient power supply solution
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 85 VAC to 265 VAC
  • Output Power: Up to 25 W
  • Efficiency: Up to 88%
  • Operating Temperature Range: -40°C to 125°C
  • Frequency: 132 kHz

Detailed Pin Configuration

  1. VDD: Power supply input
  2. GND: Ground
  3. FB: Feedback pin
  4. D: Drain connection for external MOSFET
  5. S: Source connection for external MOSFET
  6. RT: Oscillator timing resistor
  7. CT: Oscillator timing capacitor

Functional Features

  • Integrated 725 V MOSFET
  • Advanced EcoSmart technology for low standby power
  • Auto-restart protection
  • Accurate hysteretic thermal shutdown

Advantages

  • High efficiency over a wide load range
  • Compact design with minimal external components
  • Enhanced safety features for reliable operation
  • Low standby power consumption

Disadvantages

  • Limited output power compared to some competing models
  • Requires careful consideration of external component selection for optimal performance

Working Principles

The TOP258GN-TL is a highly integrated switcher IC designed for energy-efficient power supplies. It utilizes primary-side regulation to achieve accurate output voltage control without the need for an optocoupler or secondary feedback circuitry. The device operates in a flyback topology, providing high efficiency and excellent line and load regulation.

Detailed Application Field Plans

The TOP258GN-TL is well-suited for a wide range of applications including: - AC/DC power supplies for consumer electronics - LED lighting drivers - Industrial power supplies - Auxiliary power supplies in appliances

Detailed and Complete Alternative Models

  • TOP256EN: Lower power version suitable for lower wattage applications
  • TOP259PN: Higher power version with extended feature set for more demanding applications
  • TOP250YN: Cost-effective alternative with slightly lower efficiency for price-sensitive designs

In conclusion, the TOP258GN-TL offers a compelling combination of high efficiency, compact design, and advanced safety features, making it an ideal choice for a variety of power management applications.

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10個與TOP258GN-TL在技術方案中應用相關的常見問題與解答

  1. What is TOP258GN-TL?

    • TOP258GN-TL is a high-performance, energy-efficient integrated off-line switcher IC designed for use in power supply applications.

  2. What are the typical applications of TOP258GN-TL?

    • TOP258GN-TL is commonly used in AC/DC power supplies for appliances, LED lighting, industrial controls, and other electronic devices.

  3. What is the input voltage range for TOP258GN-TL?

    • The input voltage range for TOP258GN-TL is typically from 85VAC to 265VAC.

  4. What is the output power capability of TOP258GN-TL?

    • TOP258GN-TL can deliver output power up to 25W with excellent efficiency.

  5. Does TOP258GN-TL have built-in protection features?

    • Yes, TOP258GN-TL includes comprehensive protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  6. What are the key advantages of using TOP258GN-TL?

    • Some key advantages of TOP258GN-TL include its high efficiency, compact size, and integration of multiple functions into a single IC.

  7. Can TOP258GN-TL be used in dimmable LED lighting applications?

    • Yes, TOP258GN-TL can be used in dimmable LED lighting applications with appropriate circuit design.

  8. What are the typical external components required for a power supply using TOP258GN-TL?

    • Typical external components include a transformer, input and output capacitors, a diode, and an optocoupler for feedback.

  9. Is TOP258GN-TL suitable for universal input voltage power supplies?

    • Yes, TOP258GN-TL is suitable for universal input voltage power supplies due to its wide input voltage range.

  10. Where can I find detailed application notes and design resources for TOP258GN-TL?

    • Detailed application notes and design resources for TOP258GN-TL can be found on the manufacturer's website or through authorized distributors.