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NCP1251CSN65T1G
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NCP1251CSN65T1G

Product Overview

Category

The NCP1251CSN65T1G belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for providing efficient power management solutions in various electronic devices and systems.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Integrated protection features
  • Low standby power consumption

Package

The NCP1251CSN65T1G is available in a compact and industry-standard SOIC-7 package.

Essence

The essence of this product lies in its ability to efficiently regulate and manage power supply in electronic applications, contributing to improved energy efficiency and performance.

Packaging/Quantity

The NCP1251CSN65T1G is typically supplied in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 85V to 265V
  • Output Power: Up to 15W
  • Switching Frequency: 65kHz
  • Operating Temperature Range: -40°C to 125°C
  • Standby Power Consumption: <30mW

Detailed Pin Configuration

The NCP1251CSN65T1G features a 7-pin configuration: 1. VCC 2. GND 3. FB 4. CS 5. DRAIN 6. COMP 7. VDD

Functional Features

  • Overvoltage and overcurrent protection
  • Built-in soft-start function
  • Frequency jittering for reduced EMI
  • Auto-restart for fault conditions

Advantages and Disadvantages

Advantages

  • High efficiency contributes to energy savings
  • Integrated protection features enhance system reliability
  • Compact package size for space-constrained designs

Disadvantages

  • Limited output power compared to higher-rated ICs
  • Higher cost compared to non-integrated solutions

Working Principles

The NCP1251CSN65T1G operates on the principle of pulse frequency modulation (PFM) to regulate the output voltage based on the input conditions. It utilizes a combination of internal control circuitry and external components to achieve efficient power conversion.

Detailed Application Field Plans

The NCP1251CSN65T1G is well-suited for various applications including: - AC-DC power supplies - LED lighting systems - Home appliances - Industrial equipment

Detailed and Complete Alternative Models

Some alternative models to the NCP1251CSN65T1G include: - NCP1251 - NCP1251A - NCP1251B - NCP1251C

In conclusion, the NCP1251CSN65T1G offers a reliable and efficient solution for power management in diverse electronic applications, making it a valuable component in modern electronic designs.

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Énumérez 10 questions et réponses courantes liées à l'application de NCP1251CSN65T1G dans les solutions techniques

  1. What is the NCP1251CSN65T1G?

    • The NCP1251CSN65T1G is a fixed-frequency current-mode controller for offline power supplies.

  2. What are the key features of the NCP1251CSN65T1G?

    • The key features include a high-voltage start-up, a jittered switching frequency to reduce EMI, and a built-in 650V MOSFET.

  3. What are the typical applications of the NCP1251CSN65T1G?

    • Typical applications include AC-DC adapters, auxiliary power supplies, and LED lighting.

  4. What is the maximum operating frequency of the NCP1251CSN65T1G?

    • The maximum operating frequency is typically around 132 kHz.

  5. What protections does the NCP1251CSN65T1G offer?

    • It offers overvoltage protection, overcurrent protection, and thermal shutdown.

  6. What is the input voltage range for the NCP1251CSN65T1G?

    • The input voltage range is typically from 85V to 265V.

  7. Can the NCP1251CSN65T1G be used in dimmable LED lighting applications?

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

  8. What is the efficiency of the NCP1251CSN65T1G in typical applications?

    • The efficiency can reach up to 85% in typical applications.

  9. Does the NCP1251CSN65T1G require an external oscillator?

    • No, it has a built-in oscillator, which simplifies the design and reduces component count.

  10. Is there a reference design available for the NCP1251CSN65T1G?

    • Yes, ON Semiconductor provides reference designs and application notes for implementing the NCP1251CSN65T1G in various technical solutions.