LT3763EFE

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LED drivers are an essential component of powering high luminance LED assemblies. The LT3763EFE is a very efficient LED driver with a semi-resonant power conversion structure. The device is designed to drive LED assemblies in either boost or flyback topology. The LT3763EFE offers an adjustable current limit and a wide input voltage range. Additionally, the LT3763EFE is capable of driving multiple LED strings in phases, parallel and/or multiple string combinations.

The LT3763EFE is ideal for a variety of applications, including LED bulbs, LED lighting, LED monitors, outdoor LED displays, LED signs, and LED arrays. The device can operate from a wide input voltage range of 8V to 55V, and its adjustable current limit makes it suitable for a range of LED chain lengths and LED string combinations. The device can also be used in solar LED lighting applications, where it maximizes the efficiency of operation even at lower input voltage levels.

The LT3763EFE\'s semi-resonant power conversion structure enables it to save power and maintain a high level of efficiency. The device can impart significant savings in terms of both power consumption and system cost, while providing the most reliable solutions for LED lighting applications.

The LT3763EFE\'s working principle is based on a controlled peak-current-mode control technique. In normal operation, the LT3763EFE first determines the proper current limit setting by measuring its output voltage. Then, it compares this current limit to its measured current reference, and regulates its output current so that the current limit and current reference remain the same.

The device also contains an active burst mode to maximize energy efficiency. In burst mode, the LT3763EFE periodically turns the output off for a short period of time. During this short period of time, the inductor is still energized, and the capacitor is still charged. This allows the device to conserve energy and reduce switching losses during low-light conditions.

The LT3763EFE also includes adjustable soft-start capabilities. During startup, the device ramps up its output current in a defined rate until it reaches the set current limit. This ensures that the device produces a stable and accurate output current, and prevents it from entering a latch shutdown state.

In addition, the LT3763EFE contains an overload protection. In the event of an overload, the device will reduce its output current to a safe level. This ensures that the LED string is not damaged and the LED assembly is adequately protected from being exposed to over-current conditions.

The LT3763EFE also contains a thermal-shutdown feature which will shut down the device when its operating temperature exceeds a preset limit. This feature prevents the device from sustaining damage due to temperatures that are too high for operation.

The LT3763EFE is the ideal solution for LED bulbs, LED lighting, LED monitors, outdoor LED displays, LED signs, and LED arrays. Its wide input voltage range, adjustable current limit and soft-start capabilities, as well as its thermal and overload protection make it the ideal solution for these applications.

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