LT8391EFE#TRPBF

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LT8391EFE#TRPBF is an advanced and efficient integrated step-down regulator and LED driver. It is a state-of-the-art power management integrated circuit (PMIC) specifically designed for LED lighting applications where high efficiency, low power consumption, and performance are of primary consideration. This specialized integrated circuit is part of a growing family of PMICs and LED drivers, developed by Linear Technology, which have been designed to meet the latest industry standards and requirements in terms of size, cost-effectiveness, and competitive performance.

The LT8391EFE#TRPBF contains a Pulse-Width Modulation (PWM) controller, a MOSFET gate driver, a current sensing operational amplifier, and a power FET. This device is able to run from as little as 5 volts and is able to provide a regulatory output current at level of up to 5 amps. This current control capability is achieved utilizing the combination of internal current sensing and MOSFET gate drive circuitry. The internal PWM controller operates in an adjustable frequency of up to 500 kHz, thus minimizing unneeded associated EMI.

The LT8391EFE#TRPBF features a comprehensive circuit protection system. This includes an output voltage limit and an independent thermal shutdown device. Additional current limiters and a gate drive undervoltage lockout are incorporated, offering optimum system protection at all times. The device further features an enable pin and a logic soft-start pin, which can be used independently or combined to customize the turn-on time of the device. Additional features include a synchronous operation with an external clock.

The LT8391EFE#TRPBF is an ideal semiconductor solution for the development of powerful, low-voltage power management systems such as: automotive, industrial, and commercial LED lighting systems; small, low power, and Ultra HDTVs; medical electronics and related applications; notebook and tablet PCs; and other embedded applications.

When integrated into a circuit, the LT8391EFE#TRPBF allows a wide variety of systems to benefit from its advanced features such as high output current levels, low power consumption, improved system efficiency, minimal component count, and ease of design. Furthermore,

the LT8391EFE#TRPBF is designed to be as environmentally friendly as possible and is free from lead and halogen which, of course, makes it very attractive for use in green-powered systems.

When used as a power management IC for LED systems, the LT8391EFE#TRPBF allows the LED system to operate at its maximum efficiency and maximum power level for extended periods of time. Its current control circuits enable a precise output voltage regulation and a precise output current regulation. Additionally, the device is able to monitor the output current and adjust the PWM duty cycle if it exceeds a certain predetermined threshold. This ensures an enhanced system performance even in fluctuating ambient conditions.

Due to its flexibility, reliability, and features, the LT8391EFE#TRPBF has become a popular choice among industrial and commercial LED lighting systems designers and manufacturers. Its precise operational parameters and comprehensive monitoring and protection functions make this PMIC and LED driver one of the most advanced, efficient, and reliable products in its class. It is therefore the right choice for any applications where the requirements include a high performance, trustworthy, and cutting-edge solution.

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