LM3429MH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3429MH/NOPB is a high-performance LED driver IC designed for driving LEDs in various lighting applications.

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

Package: The LM3429MH/NOPB is available in a 16-pin TSSOP package.

Essence: This IC is essential for efficient and reliable LED lighting systems.

Packaging/Quantity: The LM3429MH/NOPB is typically sold in reels of 250 units.

Specifications

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

Pin Configuration

The LM3429MH/NOPB features the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. CS: Current sense input
5. DIM: Dimming control input
6. FB: Feedback voltage input
7. EN: Enable control input
8. SW: Switch node connection
9. SW: Switch node connection
10. SW: Switch node connection
11. SW: Switch node connection
12. SW: Switch node connection
13. SW: Switch node connection
14. SW: Switch node connection
15. SW: Switch node connection
16. SW: Switch node connection

Functional Features

• Constant current output regulation
• Adaptive gate drive for optimal switching performance
• Internal over-temperature protection
• Soft-start for controlled startup
• External dimming control capability

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for versatile applications - Adjustable output current enables flexibility in LED configurations - Dimming control capability provides lighting customization - Over-temperature protection ensures device reliability

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power LED applications - Requires external components for complete LED driver circuit implementation

Working Principles

The LM3429MH/NOPB operates as a buck LED driver, converting the higher input voltage to a regulated lower voltage suitable for driving LEDs. It utilizes a constant current control scheme to ensure consistent LED brightness. The IC incorporates adaptive gate drive techniques to optimize switching performance and minimize power losses.

Detailed Application Field Plans

The LM3429MH/NOPB is widely used in various lighting applications, including: - Residential and commercial lighting - Automotive lighting - Industrial lighting - Outdoor lighting - Signage and display lighting

Detailed and Complete Alternative Models

Some alternative models to the LM3429MH/NOPB include: - LM3409HV/NOPB - LT3754EMSE#PBF - TPS92560QDDCRQ1 - MAX16834ATJ/V+ - AS3693B-ZWLT

These alternative models offer similar functionality and can be considered based on specific application requirements.

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