LM3404HVMA

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3404HVMA is a high-voltage buck regulator designed for driving high-power LEDs. It provides a constant current output, making it suitable for various lighting applications.

Characteristics: - High voltage input range - Constant current output - Efficient power conversion - Compact package size - Wide operating temperature range

Package: The LM3404HVMA is available in a small outline package (SOP) with 8 pins.

Essence: This IC is specifically designed to efficiently drive high-power LEDs by providing a regulated constant current output.

Packaging/Quantity: The LM3404HVMA is typically sold in reels containing a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 6V to 75V
• Output Current Range: Up to 1A
• Switching Frequency: Adjustable up to 1MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LM3404HVMA has the following pin configuration:

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| | --| VIN GND|-- Pin 1: Ground --| SW NC |-- Pin 2: No Connection --| FB EN |-- Pin 3: Enable --| VCC COMP|-- Pin 4: Compensation --| CS DIM |-- Pin 5: Dimming Control --| NC VOUT|-- Pin 6: Output Voltage --| NC NC |-- Pin 7: No Connection --| NC NC |-- Pin 8: No Connection |___________| ```

Functional Features

• High-Voltage Operation: The LM3404HVMA can handle input voltages ranging from 6V to 75V, making it suitable for a wide range of applications.
• Constant Current Output: It provides a regulated constant current output, ensuring consistent brightness and performance of high-power LEDs.
• Efficient Power Conversion: The IC offers high efficiency, reducing power losses and maximizing energy conversion.
• Dimming Control: The LM3404HVMA includes a dimming control pin (DIM) that allows for easy adjustment of LED brightness.
• Enable Pin: The enable pin (EN) enables or disables the regulator, providing flexibility in controlling the LED driver.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Constant current output for LED driving - High efficiency - Compact package size - Dimming control capability

Disadvantages: - Limited output current range (up to 1A) - Requires external compensation components for stability

Working Principles

The LM3404HVMA is a buck regulator that uses pulse width modulation (PWM) to regulate the output current. It operates by switching the input voltage on and off at a high frequency, controlling the duty cycle to maintain a constant current through the LED load. This method ensures efficient power conversion and precise current regulation.

Detailed Application Field Plans

The LM3404HVMA is commonly used in various lighting applications, including: - Street lighting - Automotive lighting - Industrial lighting - Architectural lighting - Signage lighting

Its high-voltage operation, constant current output, and dimming control make it suitable for driving high-power LEDs in these applications.

Detailed and Complete Alternative Models

Some alternative models to the LM3404HVMA include: - LM3404HVMY/NOPB - LM3404HVMAX/NOPB - LM3404HVMA/NOPB - LM3404HVMA/NOPBCT-ND

These models offer similar functionality and characteristics, providing alternatives for different design requirements.

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