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LM3551SD/NOPB
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LM3551SD/NOPB

Product Overview

Category

The LM3551SD/NOPB belongs to the category of LED drivers.

Use

It is used for driving and controlling LED lighting in various applications.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Adjustable output current
  • Integrated over-temperature protection

Package

The LM3551SD/NOPB comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of LM3551SD/NOPB lies in its ability to efficiently drive and control LED lighting while offering flexibility and protection features.

Packaging/Quantity

The LM3551SD/NOPB is typically available in reels with a specific quantity per reel.

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Current Range: Up to 1A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LM3551SD/NOPB has a detailed pin configuration as follows: 1. VIN (Input Voltage) 2. GND (Ground) 3. EN (Enable) 4. ISET (Output Current Set) 5. FB (Feedback) 6. SW (Switch Node) 7. PGND (Power Ground)

Functional Features

  • Adjustable output current through the ISET pin
  • Over-temperature protection
  • Enable pin for control
  • High efficiency operation

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for versatile applications
  • High efficiency leads to energy savings
  • Integrated over-temperature protection enhances reliability

Disadvantages

  • Limited maximum output current compared to some other LED drivers
  • May require additional components for certain applications

Working Principles

The LM3551SD/NOPB operates by regulating the current flowing through the connected LED, ensuring consistent and efficient lighting. The integrated circuitry allows for precise control and protection against over-temperature conditions.

Detailed Application Field Plans

The LM3551SD/NOPB is well-suited for various applications including: - Portable electronics - Automotive lighting - General illumination - Backlighting for displays

Detailed and Complete Alternative Models

Some alternative models to LM3551SD/NOPB include: - LM3409 - LT3476 - TPS92511

In conclusion, the LM3551SD/NOPB LED driver offers high efficiency, adjustable output current, and integrated protection features, making it suitable for diverse LED lighting applications.

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10 domande e risposte comuni relative all'applicazione di LM3551SD/NOPB nelle soluzioni tecniche

  1. Q: What is the input voltage range for LM3551SD/NOPB? A: The input voltage range for LM3551SD/NOPB is typically 2.7V to 5.5V.

  2. Q: What is the maximum output current of LM3551SD/NOPB? A: The maximum output current of LM3551SD/NOPB is typically 30mA.

  3. Q: Can LM3551SD/NOPB be used for LED backlighting in portable devices? A: Yes, LM3551SD/NOPB is suitable for LED backlighting in portable devices.

  4. Q: Does LM3551SD/NOPB have built-in over-temperature protection? A: Yes, LM3551SD/NOPB features built-in over-temperature protection.

  5. Q: What is the typical efficiency of LM3551SD/NOPB? A: The typical efficiency of LM3551SD/NOPB is around 90%.

  6. Q: Is LM3551SD/NOPB compatible with dimming control? A: Yes, LM3551SD/NOPB is compatible with dimming control.

  7. Q: Can LM3551SD/NOPB be used in automotive lighting applications? A: Yes, LM3551SD/NOPB can be used in automotive lighting applications.

  8. Q: What is the operating temperature range for LM3551SD/NOPB? A: The operating temperature range for LM3551SD/NOPB is typically -40°C to 85°C.

  9. Q: Does LM3551SD/NOPB require external compensation components? A: No, LM3551SD/NOPB does not require external compensation components.

  10. Q: Is LM3551SD/NOPB available in a small package suitable for space-constrained designs? A: Yes, LM3551SD/NOPB is available in a small package suitable for space-constrained designs.