LT3791IFE

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LT3791IFE Application Field and Working Principle

The LT3791IFE is one of the most efficient multi-channel LED drivers available on the market. It is designed for use in general LED lighting applications such as LED displays, LED backlighting, LED driver for LED bulbs, and LED driver for home appliances. It is also suitable for medical device applications such as bio-imaging systems and laser light sources.

The device is a highly integrated single-chip power management circuit that can operate multiple LED strings with varying voltage levels. The LT3791IFE operates with a fixed frequency, providing built-in dimming capabilities. Its wide operating range also allows it to be used in a variety of applications.

Features

The LT3791IFE is designed for efficient output current operation and superior electrical stability. It offers a wide range of features to help design multi-channel LED driver applications.

• Programmable dimming of up to 12 channels
• High-efficiency output current control with 95% efficiency
• Low ripple and EMI
• Programmable operating frequency up to 1 MHz
• Wide range of operating voltages
• Integrated switching regulator with LED current feedback
• High accuracy current regulation
• Built-in reverse current protection
• Protection against short-circuit, over-voltage, and open LED strings

Working Principle and Specifications

The LT3791IFE is a single-chip device that is used to power multiple LED strings. It works by regulating the output voltage and current of each LED string separately with its programmable dimming capabilities. It also allows for a wide range of operating voltages from 5V to 30V.

The LT3791IFE features a built-in switching regulator with LED current feedback for accurate current regulation. It also has a wide range of features for protection against overload, short-circuit, and over-voltage. The device also has high efficiency output current control for low ripple and EMI.

Conclusion

The LT3791IFE is a highly efficient multi-channel LED driver. Its programmable dimming capabilities, wide operating voltages, and built-in protection features make it an ideal solution for many LED lighting applications.

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