LT3791EFE

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LED drivers are essential power management integrated circuits (PMICs) for providing proper current for illumination. They are incorporated in many electronic devices with LEDs and it is important for the design engineer to select the right driver. The LT3791EFE is a high power LED driver which can offer up to 2A of continuous current. It is ideal for driving high power LEDs in many applications, from automotive lighting to solar illumination.

In order to understand its application field, we first need to understand how it works. The LT3791EFE uses a current mode architecture which is ideal for providing clean and stable current to multiple parallel LEDs. It employs a buck-boost topology to control the current and voltage, making it ideal for applications where the input voltage is uncertain. A typical application is automotive lamps, where the input voltage can range between almost zero to more than 10V. The LT3791EFE is a low noise IC which features low EMI, making it suitable for use in noise sensitive environments such as aerospace or medical applications.

The LT3791EFE operates off a single input voltage and provides up to 2A of continuous current. It is a highly flexible device which supports a variety of control inputs including analog, PWM and digital. The internal buck-boost converter ensures that the LEDs are driven at constant current, even if the input voltage varies. The LT3791EFE also supports dimming control, allowing for dimming and color mixing of multiple LED channels.

The LT3791EFE is also suitable for driving LEDs in solar applications. Because the LT3791EFE can operate with an input voltage of up to 30V, it can be used to directly drive the output of solar panels. This eliminates the need for a separate boost converter, saving power, space and cost. The output current can be programmed using a simple external resistor, allowing for a wide range of current levels.

The LT3791EFE is a high current LED driver which is suitable for applications ranging from automotive lighting to solar illumination. It employs a current mode architecture and a buck-boost topology to ensure stable and clean current output. It can operate with an input voltage up to 30V and can be programmed for output current levels up to 2A. The low noise and low EMI make it suitable for use in noise sensitive applications and it is also versatile, supporting a variety of control inputs. Overall, the LT3791EFE is an ideal choice for high power LED applications.

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