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NCP3155ADR2G
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NCP3155ADR2G

Product Overview

Category

The NCP3155ADR2G belongs to the category of voltage mode PWM controllers.

Use

It is commonly used in power management applications, particularly in DC-DC converters and LED drivers.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Adjustable switching frequency
  • Overcurrent protection
  • Thermal shutdown protection

Package

The NCP3155ADR2G comes in a small outline package (SOIC) with 8 pins.

Essence

This product is essential for regulating and controlling the output voltage in various power supply and LED driver designs.

Packaging/Quantity

The NCP3155ADR2G is typically available in reels containing 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 75V
  • Output Voltage Range: 0.8V to 60V
  • Operating Temperature Range: -40°C to 125°C
  • Maximum Duty Cycle: 95%
  • Oscillator Frequency Range: 100kHz to 1MHz

Detailed Pin Configuration

  1. VCC
  2. GND
  3. FB
  4. COMP
  5. SS/EN
  6. RT/CLK
  7. CS
  8. DRV

Functional Features

  • Voltage mode control
  • Soft-start function
  • External synchronization capability
  • Error amplifier with precise reference voltage

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power dissipation
  • Wide input voltage range allows for versatile applications
  • Overcurrent and thermal shutdown protection enhance system reliability

Disadvantages

  • Limited maximum duty cycle may constrain certain designs
  • External components required for full functionality

Working Principles

The NCP3155ADR2G operates on the principle of pulse-width modulation (PWM) to regulate the output voltage. It compares the feedback voltage with a reference voltage and adjusts the duty cycle of the output signal accordingly.

Detailed Application Field Plans

The NCP3155ADR2G is well-suited for various applications including: - Point-of-load converters - LED lighting systems - Industrial power supplies - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the NCP3155ADR2G include: - LM5117 from Texas Instruments - LT3757 from Analog Devices - IR1167 from Infineon Technologies

In conclusion, the NCP3155ADR2G is a versatile voltage mode PWM controller with a wide range of applications in power management and LED driver designs. Its high efficiency, wide input voltage range, and built-in protections make it a popular choice for engineers working on diverse electronic systems.

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প্রযুক্তিগত সমাধানে NCP3155ADR2G এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

  1. What is the NCP3155ADR2G?

    • The NCP3155ADR2G is a synchronous buck controller designed for high-performance DC-DC applications.

  2. What is the input voltage range of NCP3155ADR2G?

    • The input voltage range of NCP3155ADR2G is typically 4.5V to 28V.

  3. What is the output current capability of NCP3155ADR2G?

    • The NCP3155ADR2G can support output currents up to 15A.

  4. What is the switching frequency of NCP3155ADR2G?

    • The switching frequency of NCP3155ADR2G is adjustable and can typically range from 100kHz to 2MHz.

  5. What are the key features of NCP3155ADR2G?

    • Some key features of NCP3155ADR2G include programmable soft-start, overcurrent protection, thermal shutdown, and adjustable current limit.

  6. What type of applications is NCP3155ADR2G suitable for?

    • NCP3155ADR2G is suitable for various applications such as industrial power supplies, telecom equipment, and automotive systems.

  7. How does NCP3155ADR2G achieve high efficiency?

    • NCP3155ADR2G achieves high efficiency through its synchronous rectification and low-side MOSFET driver.

  8. What are the recommended external components for using NCP3155ADR2G?

    • The recommended external components for NCP3155ADR2G include inductors, capacitors, and resistors for setting the desired output voltage and current limits.

  9. Can NCP3155ADR2G operate in a wide temperature range?

    • Yes, NCP3155ADR2G is designed to operate over a wide temperature range, typically from -40°C to 125°C.

  10. Is there a reference design available for NCP3155ADR2G?

    • Yes, ON Semiconductor provides reference designs and application notes for implementing NCP3155ADR2G in various technical solutions.