LM3404MAX

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3404MAX is a high-performance LED driver IC designed for driving single or multiple LEDs in various lighting applications. It provides efficient and precise control of LED current, ensuring optimal performance and longevity of the LEDs.

Characteristics: - High efficiency - Wide input voltage range - Adjustable LED current - Thermal shutdown protection - Low external component count

Package: The LM3404MAX is available in a small outline package (SOP) with 8 pins, making it suitable for compact designs and easy integration into lighting systems.

Essence: The essence of the LM3404MAX lies in its ability to provide reliable and efficient LED driving capabilities, enabling the creation of high-quality lighting solutions.

Packaging/Quantity: The LM3404MAX is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

The LM3404MAX has the following specifications:

• Input Voltage Range: 6V to 42V
• Output Current Range: Up to 1A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C
• Dimming Control: Analog/PWM
• Protection Features: Thermal shutdown, overcurrent protection

Pin Configuration

The LM3404MAX features the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. DIM: Dimming control input
5. FB: Feedback pin for LED current regulation
6. SW: Switch node for driving LEDs
7. NC: No connection
8. VOUT: Output voltage for driving LEDs

Functional Features

The LM3404MAX offers the following functional features:

• Precise LED current regulation
• Wide input voltage range for versatile applications
• Dimming control for adjusting brightness
• Thermal shutdown protection to prevent overheating
• Overcurrent protection to safeguard LEDs

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Wide input voltage range allows for flexibility in design - Adjustable LED current enables customization of lighting effects - Compact package size facilitates integration into space-constrained systems - Protection features ensure reliability and longevity of LEDs

Disadvantages: - Limited output current range may not be suitable for high-power LED applications - Analog/PWM dimming control may require additional circuitry for precise control

Working Principles

The LM3404MAX operates based on a buck converter topology. It regulates the LED current by controlling the duty cycle of the internal switch. The feedback pin (FB) monitors the LED current and adjusts the duty cycle accordingly to maintain the desired current level. The dimming control input (DIM) allows for analog or PWM dimming, providing flexibility in adjusting the brightness of the LEDs.

Detailed Application Field Plans

The LM3404MAX is well-suited for various lighting applications, including but not limited to: - Residential lighting - Commercial lighting - Automotive lighting - Industrial lighting - Signage and display lighting

In residential lighting, the LM3404MAX can be used in LED bulbs, downlights, and strip lights to provide efficient and long-lasting illumination. In commercial settings, it can be employed in office lighting, retail displays, and hospitality lighting to create visually appealing environments. Automotive applications include interior and exterior lighting, while industrial lighting covers warehouses, factories, and outdoor areas. Signage and display lighting benefit from the LM3404MAX's ability to deliver consistent and vibrant illumination.

Detailed and Complete Alternative Models

Some alternative models to the LM3404MAX that offer similar functionality and performance include:

1. LT3474: A high-efficiency LED driver IC with a wide input voltage range and adjustable LED current.
2. TPS92550: An integrated LED driver with dimming control and thermal protection features.
3. MAX16834: A compact LED driver IC with high efficiency and precise current regulation.

These alternative models can be considered based on specific design requirements and application needs.

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