LM3407MY/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3407MY/NOPB is a high-performance LED driver IC designed for driving high-power LEDs in various lighting applications.

Characteristics: - High efficiency - Wide input voltage range - Adjustable output current - Dimming control capability - Over-temperature protection

Package: The LM3407MY/NOPB is available in a small outline package (SOP) with 8 pins.

Essence: This IC is essential for efficiently driving high-power LEDs, ensuring optimal performance and longevity.

Packaging/Quantity: The LM3407MY/NOPB is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Current Range: Up to 1A
• Efficiency: Up to 95%
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LM3407MY/NOPB features the following pin configuration:

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| | --| VIN GND|-- --| VCC CTRL|-- --| ISET DIM |-- --| FB EN |-- --| SW NC |-- --| SW NC |-- --| SW NC |-- |___________| ```

Functional Features

1. High Efficiency: The LM3407MY/NOPB incorporates advanced circuitry that ensures high power conversion efficiency, minimizing energy losses during LED operation.

2. Wide Input Voltage Range: With an input voltage range of 4.5V to 75V, this IC can be used in a wide range of applications, accommodating different power supply configurations.

3. Adjustable Output Current: The output current can be easily adjusted using the ISET pin, allowing precise control over the LED brightness.

4. Dimming Control Capability: The LM3407MY/NOPB supports both analog and pulse-width modulation (PWM) dimming control methods, enabling flexible lighting control options.

5. Over-Temperature Protection: To ensure safe operation, this IC incorporates over-temperature protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Wide input voltage range allows for versatile applications. - Adjustable output current enables precise LED brightness control. - Dimming control capability provides flexibility in lighting design. - Over-temperature protection ensures safe operation.

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power LED applications requiring higher currents. - Requires external components for proper operation, increasing overall system complexity.

Working Principles

The LM3407MY/NOPB operates as a constant current source, regulating the current flowing through the connected LEDs. It utilizes a buck converter topology to efficiently step down the input voltage to match the LED requirements. By adjusting the feedback voltage, the desired output current is maintained, ensuring consistent LED brightness.

Detailed Application Field Plans

The LM3407MY/NOPB finds applications in various lighting scenarios, including: 1. Residential lighting 2. Commercial lighting 3. Automotive lighting 4. Industrial lighting 5. Outdoor lighting

In these applications, the LM3407MY/NOPB provides efficient and reliable LED driving, contributing to enhanced lighting performance and energy efficiency.

Detailed and Complete Alternative Models

1. LM3409MY/NOPB: Similar to LM3407MY/NOPB but with a higher maximum output current of 2A.
2. LM3410MY/NOPB: A variant with integrated fault protection features, ensuring safe operation in case of LED open or short circuit conditions.
3. LM3405MY/NOPB: A lower power version suitable for driving low-power LEDs.

These alternative models offer different specifications and features, allowing users to select the most appropriate IC for their specific application requirements.

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