LT3965EFE#PBF

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The LT3965EFE#PBF is a high-efficiency, high- accuracy, constant current buck converter designed to drive LEDs. It is included as part of the PMIC - LED Drivers family, offering an integrated solution to control multiple strings of LEDs. The application fields and working principles of the LT3965EFE#PBF are outlined below.

Application Fields

The LT3965EFE#PBF is a device ideal for driving multiple strings of LEDs. It is optimized for driving up to four strings of LEDs and can provide up to 1A of current. It is well-suited for automotive and industrial applications, such as LED lighting, display backlighting, and specialised lighting applications. The device is also suitable for battery-powered applications, as it offers a high efficiency and wide operating voltage range.

Working Principle

The LT3965EFE#PBF operates on the principle of buck-boost, regulating the output voltage and current to the desired levels. When the input or output voltage is higher than the reference voltage, the device operates in buck mode reducing the input voltage to the desired levels. When the input or output voltage is lower than the reference voltage, the device operates in boost mode increasing the input voltage to the desired levels.

The device is capable of operating in continuous current mode, providing a continuous current output. The output current can be adjusted with a resistor, allowing the user to adjust the LED current according to the application needs. Additionally, the device has an integrated soft-start feature which helps prevent inrush current issues. It includes protection against overtemperature, overvoltage, and short-circuit, providing reliable protection in case of faulty operation.

In summary, the LT3965EFE#PBF is an ideal solution for controlling multiple strings of LEDs. It offers high-efficiency, high current accuracy, and reliable protection, making it suitable for different applications. The device is well-suited for automotive and industrial applications, as well as battery-powered applications.

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