LM3402HVMMX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High Voltage, Low-Side Constant Current Driver
• Package: 8-Pin VSSOP
• Essence: Efficient and Reliable LED Driver Solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0V to 60V
• Maximum Output Current: 1.5A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to +125°C
• Dimming Control: Analog/PWM

Pin Configuration

The LM3402HVMMX/NOPB IC has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. COMP: Compensation pin for feedback control loop
4. DIM: Dimming control input pin
5. FB: Feedback voltage pin
6. CS: Current sense pin
7. SW: Switch node pin
8. VCC: Supply voltage pin

Functional Features

• High voltage capability allows driving LEDs in series
• Low-side constant current driver for accurate LED current regulation
• Wide input voltage range enables versatile applications
• Adjustable dimming control for brightness adjustment
• Integrated protection features like thermal shutdown and overcurrent protection

Advantages and Disadvantages

Advantages: - High efficiency LED driver solution - Compact package size for space-constrained designs - Wide input voltage range for flexibility - Accurate current regulation for consistent LED performance - Integrated protection features enhance reliability

Disadvantages: - Limited maximum output current of 1.5A - Requires external components for proper operation - Not suitable for applications requiring higher output voltages

Working Principles

The LM3402HVMMX/NOPB is a low-side constant current driver designed to efficiently drive LEDs in various lighting applications. It regulates the LED current by adjusting the duty cycle of the internal switching regulator. The input voltage range allows it to be used with a wide variety of power sources.

The dimming control input (DIM) enables brightness adjustment through either analog or pulse width modulation (PWM) signals. This feature provides flexibility in controlling the LED intensity based on specific application requirements.

The IC incorporates protection features such as thermal shutdown and overcurrent protection, ensuring safe operation and preventing damage to the device and LEDs.

Detailed Application Field Plans

The LM3402HVMMX/NOPB LED driver IC finds applications in various fields, including:

1. General Lighting: Suitable for driving high-power LEDs used in residential, commercial, and industrial lighting applications.
2. Automotive Lighting: Enables efficient and reliable LED driving in automotive headlights, taillights, and interior lighting.
3. Display Backlighting: Provides accurate current regulation for LED backlighting in LCD displays, TVs, and monitors.
4. Signage and Advertising: Ideal for illuminating large outdoor signs, billboards, and display panels.
5. Architectural Lighting: Enables precise control of LED lighting in architectural structures, highlighting their design elements.

Detailed and Complete Alternative Models

1. LM3402: Similar functionality but operates at lower voltages (up to 40V).
2. LM3404: Higher maximum output current (up to 2.5A) for applications requiring more current.
3. LM3410: Buck-boost LED driver with a wider input voltage range (up to 80V).

These alternative models offer different specifications and features, allowing designers to choose the most suitable LED driver for their specific application requirements.

Word count: 453 words