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TOP260EN
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TOP260EN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low standby power, compact size
  • Package: TO-220-7L
  • Essence: Switching Regulator Controller
  • Packaging/Quantity: Tray, 100 pieces per tray

Specifications

  • Input Voltage Range: 9V to 38V
  • Output Voltage Range: 5V to 24V
  • Switching Frequency: 132 kHz
  • Maximum Output Power: 60W
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TOP260EN has a total of 7 pins:

  1. GND: Ground pin
  2. VCC: Supply voltage input
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for loop stability
  5. DRAIN: High-voltage power MOSFET drain connection
  6. SOURCE: High-voltage power MOSFET source connection
  7. SENSE: Current sense and overcurrent protection pin

Functional Features

  • Primary-Side Control: Eliminates the need for an optocoupler or secondary-side feedback circuitry.
  • Frequency Modulation: Provides improved EMI performance.
  • Cycle-by-Cycle Current Limiting: Ensures reliable and safe operation.
  • Auto-Restart Protection: Protects against output short-circuit and open-loop conditions.

Advantages and Disadvantages

Advantages: - High efficiency leading to energy savings. - Low standby power consumption. - Compact size suitable for space-constrained applications. - Primary-side control simplifies design and reduces component count.

Disadvantages: - Limited input voltage range. - Limited output voltage range. - Requires external components for complete power supply design.

Working Principles

The TOP260EN is a switching regulator controller that operates in a flyback topology. It uses primary-side control to regulate the output voltage. The controller generates a PWM signal that drives an external power MOSFET, which controls the energy transfer from the input to the output. By adjusting the duty cycle of the PWM signal, the output voltage can be regulated.

Detailed Application Field Plans

The TOP260EN is commonly used in various power management applications, including:

  1. Power Adapters: Used in AC/DC adapters for laptops, smartphones, and other electronic devices.
  2. LED Lighting: Suitable for driving LED lighting systems with efficient power conversion.
  3. Industrial Power Supplies: Used in industrial equipment requiring stable and efficient power delivery.
  4. Telecommunications: Suitable for telecom infrastructure equipment such as base stations and routers.
  5. Automotive Electronics: Can be utilized in automotive power supplies and battery chargers.

Detailed and Complete Alternative Models

  1. TOP261EN: Similar to TOP260EN but with extended input voltage range (9V to 60V).
  2. TOP257EN: Offers higher output power capability (100W) and wider input voltage range (9V to 66V).
  3. TOP249EN: Suitable for lower power applications (30W) with a narrower input voltage range (9V to 38V).

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan TOP260EN dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of TOP260EN in technical solutions:

  1. Q: What is TOP260EN? A: TOP260EN is a highly integrated offline switcher IC (integrated circuit) designed for low-power applications.

  2. Q: What are the typical applications of TOP260EN? A: TOP260EN is commonly used in various low-power applications such as power supplies, LED lighting, battery chargers, and consumer electronics.

  3. Q: What is the input voltage range supported by TOP260EN? A: TOP260EN supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global use.

  4. Q: Can TOP260EN handle high voltage spikes or surges? A: Yes, TOP260EN has built-in protection features like line overvoltage protection (OVP) and line undervoltage lockout (UVLO) to handle voltage spikes and surges.

  5. Q: Does TOP260EN require an external MOSFET for switching? A: No, TOP260EN integrates a high-voltage power MOSFET, eliminating the need for an external MOSFET.

  6. Q: What is the maximum output power that TOP260EN can handle? A: TOP260EN can handle output powers up to 45W, depending on the specific application and thermal conditions.

  7. Q: Is TOP260EN suitable for dimmable LED lighting applications? A: Yes, TOP260EN can be used in dimmable LED lighting applications with appropriate external circuitry.

  8. Q: Does TOP260EN have any protection features for fault conditions? A: Yes, TOP260EN includes features like overload protection (OLP), short-circuit protection (SCP), and thermal shutdown to protect against fault conditions.

  9. Q: Can TOP260EN operate in a wide temperature range? A: Yes, TOP260EN is designed to operate reliably in a wide temperature range from -40°C to 150°C.

  10. Q: Are there any reference designs or application notes available for TOP260EN? A: Yes, the manufacturer of TOP260EN provides reference designs and application notes that can help in implementing the IC in various technical solutions.

Please note that the answers provided here are general and may vary depending on the specific requirements and implementation of TOP260EN in different applications.