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LM3414MR

Name: LM3414MR
Rating: 4.7 (12 reviews)

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規格

Brand	Texas Instruments
Product Type	LED Lighting Drivers
Subcategory	Driver ICs
Number of Outputs	1 Output
Number of Channels	1 Channel

概述

Description

The LM3414MR is a versatile LED driver IC designed for high-efficiency driving of multiple LED configurations. Operating in a constant current mode, it supports a wide input voltage range (typically 6V to 40V) and can drive up to 1A of output current, making it suitable for various lighting applications including automotive, decorative, and general illumination.
Key features include a programmable output current, PWM dimming capabilities, and thermal shutdown protections. The device is capable of step-down (buck) operation, allowing for efficient conversion of higher input voltages to the desired output current level for LEDs. Additionally, it offers features like a built-in soft-start function to minimize inrush current and improve reliability.
The LM3414MR is available in a compact package, facilitating easy integration into space-constrained designs. Its flexibility and efficiency make it ideal for modern LED applications requiring reliable performance and energy savings.

Features

The LM3414MR is a versatile, high-performance LED driver IC designed for various illumination applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 40V, accommodating multiple power supply configurations.
2. High Efficiency: Integrated switching regulator provides efficiency up to 95%, minimizing heat dissipation.
3. Constant Current Regulation: Ensures stable LED brightness, adjustable via an external resistor.
4. PWM Dimming: Supports PWM dimming for precise control over brightness levels.
5. Thermal Protection: Features thermal shutdown to prevent overheating, enhancing reliability and longevity.
6. Compact Package: Available in a small MLP (Micro Leadframe Package), suitable for space-constrained designs.
7. Flexible Topology: Supports buck, boost, and buck-boost configurations, allowing for versatile application in different circuit designs.
These features make the LM3414MR ideal for driving LED lighting in automotive, architectural, and general lighting applications.

Package

The LM3414MR is packaged in a 5-pin SOT-23 format. This compact surface-mount package facilitates easy integration into various electronic designs, particularly for LED driver applications.

Pinout

The LM3414MR is a high-efficiency LED driver with a total of 16 pins. It is used for driving LEDs in various applications, particularly in constant current configurations.
Key functions of the pins include:
1. Power and Ground Pins: Provide necessary voltage and reference ground for the chip.
2. Input Voltage Pin (VIN): Connects to the power supply.
3. Switching Control Pins: Control the internal switching of the converter.
4. Compensation Pins: Used for stability and frequency response adjustments.
5. Feedback Pin (FB): Monitors the output current to maintain constant current regulation.
6. Switch Pin (SW): Connects to the inductor in the switching circuit.
7. Enable Pin (EN): Used to enable or disable the device.
8. LED Current Set Pins (Rset): Determines the output current through an external resistor.
These functions enable the LM3414MR to efficiently drive LED loads while maintaining desired brightness and performance.

Manufacturer

The LM3414MR is manufactured by Texas Instruments (TI), a global semiconductor company based in the United States. Texas Instruments specializes in designing and manufacturing a wide range of electronic components and integrated circuits, including analog, embedded processing, and digital signal processing solutions. Founded in 1930, TI serves various industries such as automotive, industrial, communications, and consumer electronics. The LM3414MR is a LED driver IC designed for driving high-brightness LEDs, commonly used in lighting applications. TI is known for its innovation and commitment to providing high-quality products and solutions to meet the needs of engineers and designers worldwide.

Application

The LM3414MR is a buck LED driver used primarily in applications such as automotive lighting, architectural lighting, street lighting, and backlighting. Its features make it suitable for driving high-brightness LEDs efficiently, providing constant current regulation, and supporting dimming functions. Additionally, it can be used in industrial lighting and signage applications where precise control and high efficiency are required.

Equivalent

The LM3414MR is a buck LED driver. Equivalent products include:
1. LM3405 - Similar functionality with different current ratings.
2. LT3495 - High-efficiency LED driver with integrated functions.
3. LM3406 - Offers higher current capability and more features.
4. TPS92512 - A buck LED driver with adjustable output current.
Always check datasheets for specific features and compatibility.