LM3401MM/NOPB

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LM3401MM/NOPB belongs to Power Management Integrated Circuits (PMICs) and specifically, it is part of PMIC - LED Drivers. A PMIC - LED Drivers or Light-Emitting Diode (LED) driver is an electrical circuit that is used to control the output of a LED. It is responsible for getting the proper current and voltage from the power supply and adjusting them according to the LED\'s specifications. LED drivers also provide safe operation, protection from over-voltage, over-current, over-temperature and short-circuit protection.

The LM3401MM/NOPB is a 4-channel LED driver with internal 40V, 0.5A power MOSFETs and a wide 5.5V to 95V adjustable output voltage range. It is ideal for a variety of industrial and commercial applications ranging from street lighting, light fixtures and color-changing lighting, to dynamic visibility and architectural lighting. The LM3401MM/NOPB also supports up to four LEDs in series connection, and is provided in a 6-pin TSOT package.

The LM3401MM/NOPB features a hybrid architecture with both analog and digital control, allowing for greater flexibility in the design of LED lighting systems. It provides excellent temperature performance, allowing the driver to work in a wide range of temperatures from -20°C to 150°C, as well as a flexible switching frequency range of 40 to 400kHz, adjustable to match wide voltage supply requirements. Additionally, the LM3401MM/NOPB supports many protection features, protecting from short and open circuit protection, over-voltage, over-temperature and open LED.

The working principle of LM3401MM/NOPB is based on a buck-boost topology that enables the device to provide current or voltage conversion. It adjusts the external incoming DC voltage according to the LED’s current and voltage requirement, which helps in increasing the luminous efficiency of LEDs. The LM3401MM/NOPB also features a high-frequency PWM switching with a constant LED current, ensuring steady LED operation, while providing improved power efficiency, reduced power dissipation and improved heat sinking, which further helps to increase the lifespan of the LED.

In summary, the LM3401MM/NOPB is a highly efficient and flexible LED driver that provides dynamic reconfiguration of LED lighting systems. It is an ideal solution for industrial and commercial applications, offering excellent temperature performance, dynamic switching frequency and protection from short, open circuit, over-voltage, over-temperature and open LED protection. It also enables a wide range of LED current and voltage outputs.

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