LT8391AEFE#PBF

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The LT8391AEFE#PBF is a LED driver from Linear Technology\'s Portfolio of PMICs (Power Management Integrated Circuits), specifically tailored to LED applications. It is designed for higher current circuitry, providing up to 5A at a single channel and capable of providing up to 10A with the addition of a companion boost transistor. It can be used in a variety of applications, such as interior/exterior lighting, accent lighting, and general illumination.

The LT8391AEFE#PBF is a constant current output driver with both analog and pulse-width modulation (PWM) dimming support. It offers a wide input voltage range of 3V to 60V and an adjustable output current of up to 5A. It also has an enable pin (EN) which allows the user to quickly shut off the circuit. The LT8391AEFE#PBF also offers thermal protection and short-circuit protection, making it safe and reliable in various applications.

The operating principles of this LED driver are quite simple. An input voltage is applied to the driver, and the output current is adjusted by setting a control resistance. By controlling the resistance, the current is limited, and the total power output is adjusted accordingly. The internal circuits of the LT8391AEFE#PBF allow for both analog and PWM dimming operation. The PWM dimming range is from 0 to 100%, and the analog dimming from 0 to 5A. The dimming mode is selectable via the ENA pin, allowing the user to switch between the two quickly and simply.

The LT8391AEFE#PBF is an excellent choice for LED-based applications, providing a constant current output, adjustable with dimmable capability, and safety features for reliable performance. Its wide input voltage range of 3V to 60V and adjustable output current of up to 5A make it suitable for a wide range of applications. The circuit’s simple operation and its integrated safety and protection make it a reliable choice for ease of use and dependability.

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