LM3492HCQMHX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3492HCQMHX/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 - Dimming control capabilities - Over-temperature protection - Short-circuit protection

Package: The LM3492HCQMHX/NOPB is available in a compact and thermally enhanced 16-pin QFN package.

Essence: This IC provides efficient and reliable power management for high-power LED lighting systems.

Packaging/Quantity: The LM3492HCQMHX/NOPB is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Current Range: Up to 1.5A
• Switching Frequency: Adjustable up to 1MHz
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM3492HCQMHX/NOPB features the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. EN: Enable pin for turning on/off the IC
5. DIM: Dimming control input
6. FB: Feedback pin for regulating output current
7. CS: Current sense pin
8. SW: Switch node connection for driving LEDs
9. NC: No connect
10. NC: No connect
11. NC: No connect
12. NC: No connect
13. NC: No connect
14. NC: No connect
15. NC: No connect
16. NC: No connect

Functional Features

• High-efficiency step-down (buck) converter
• Adjustable output current
• Wide input voltage range for versatile applications
• Dimming control options for brightness adjustment
• Over-temperature and short-circuit protection for enhanced reliability

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for flexibility in different applications - Dimming control enables customized lighting levels - Over-temperature and short-circuit protection enhance system reliability

Disadvantages: - Limited output current range may not be suitable for extremely high-power LED applications - Requires external components for proper operation

Working Principles

The LM3492HCQMHX/NOPB operates as a step-down (buck) converter, converting the higher input voltage to a lower voltage suitable for driving LEDs. It utilizes a feedback mechanism to regulate the output current and provides dimming control through the DIM pin. The IC incorporates various protection features to ensure safe operation under different conditions.

Detailed Application Field Plans

The LM3492HCQMHX/NOPB is widely used in the following lighting applications:

1. Indoor and outdoor LED lighting systems
2. Automotive lighting
3. Display backlighting
4. Street lighting
5. Architectural lighting

Detailed and Complete Alternative Models

1. LM3409HV: High-voltage LED driver IC with similar features and performance.
2. LT3799: High-power LED driver IC with integrated boost converter.
3. TPS92550: Constant current buck LED driver with advanced dimming capabilities.

These alternative models offer similar functionality and can be considered as alternatives to the LM3492HCQMHX/NOPB based on specific application requirements.

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