LT8391EUFD#PBF

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LT8391EUFD#PBF, or simply LT8391, is a PMIC - LED Driver. It is one of several LED drivers from Linear Technology Corporation, and it is designed for driving multiple linear LEDs with a low current range. Its high-side current limit and low-side current limit safety functions make it well-suited for driving a wide range of LEDs. With these safety features, it can prevent potential and catastrophic over-current and over-voltage events.

The LT8391EUFD#PBF features inductive switching, which reduces the power loss due to EMI, and improves the circuit efficiency. It also features an integrated low-side gate drive stage, which can be used to create an open-drain, high-side N-Channel MOSFET switch that has very good current and power handling capabilities, and can be used to control multiple channels of lighting.

The LT8391EUFD#PBF is suitable for industrial, automotive, and medical applications, including lighting control and displayconfiguration control. It is especially suitable for applications that require precise current regulation, such as medical and automotive backlight control systems. The LT8391EUFD#PBF can be used in a 3-channel, gate-drive configuration or in a single-channel, high side configuration for driving multiple series-con nected LEDs.

The LT8391EUFD#PBF can be used to drive multiple linear LEDs from a single output, and it is also suitable for driving multi-mode LED displays. It features a programmable current limit, which allows the user to adjust the level of current provided to each LED in the system, allowing for brightness control and dimming. It also features over-voltage and over-current protection, ensuring that it remains safe and reliable in operation.

In terms of its working principle, the LT8391EUFD#PBF operates using a wide-range amplifier to provide a precise current to the LEDs. The amplifier measures the voltage across the LED’s terminals and adjusts the current supplied to the LED based on the reference voltage provided. This action allows for precise and efficient current regulation. This helps ensure that each LED is supplied with constant current, providing bright and consistent illumination.

The LT8391EUFD#PBF is one of the most reliable LED drivers available. Its combination of wide-range amplifier and current limit safety features make it suitable for a wide variety of LED lighting applications, from industrial and automotive to medical systems. Its high-side current limit and low-side current limit safety functions ensure that it remains safe and reliable in operation, and its integrated low-side gate drive ensures that it offers a high degree of current and power handling capabilities.

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