LM3551SDX/NOPB

Product Overview

Category

The LM3551SDX/NOPB belongs to the category of LED drivers.

Use

It is used to drive and control the brightness of LEDs in various applications such as backlighting for LCD displays, camera flash, and indicator lights.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable output current
• Integrated over-voltage protection
• Small package size

Package

The LM3551SDX/NOPB comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of LM3551SDX/NOPB lies in its ability to efficiently drive and control LED brightness in a compact and versatile package.

Packaging/Quantity

The LM3551SDX/NOPB is typically available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: 5mA to 30mA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to 85°C
• Package Type: Small Outline Package (SOP)

Detailed Pin Configuration

The LM3551SDX/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. LX (Switch Node) 7. VOUT (Output Voltage)

Functional Features

• Integrated over-voltage protection
• Adjustable output current
• Enable pin for power management
• Feedback pin for regulating LED brightness
• Small package size for space-constrained designs

Advantages

• High efficiency leading to longer battery life
• Wide input voltage range for versatile applications
• Compact package size for space-constrained designs
• Integrated over-voltage protection for added reliability

Disadvantages

• Limited output current range compared to some other LED drivers
• May require external components for specific applications

Working Principles

The LM3551SDX/NOPB regulates the current flowing through the connected LEDs based on the feedback received from the FB pin. It adjusts the output current to maintain the desired brightness level while ensuring high efficiency and protection against over-voltage conditions.

Detailed Application Field Plans

The LM3551SDX/NOPB is well-suited for various applications including: - Backlighting for LCD displays in portable devices - Camera flash in mobile phones and digital cameras - Indicator lights in consumer electronics and automotive applications

Detailed and Complete Alternative Models

Some alternative models to LM3551SDX/NOPB include: - LM3410YMF/NOPB - LT3476EUHF#PBF - TPS61165DRVR

In conclusion, the LM3551SDX/NOPB is a versatile LED driver with high efficiency, wide input voltage range, and integrated protection features, making it suitable for a wide range of applications in consumer electronics and beyond.

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