LT8391AIUFD#TRPBF

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PMIC - LED Drivers

The LT8391AIUFD#TRPBF is a high performance and portable LED driver with a unique architecture that allows designers to control and manage multiple LED lights and provides high reliability and power savings that can be used in a variety of applications. The LT8391AIUFD#TRPBF is a high performance and efficient power management integrated circuit (PMIC) with a unique architecture providing high current active DC/DC buck (DCB) and multiple current sense outputs with very low maximum power consumption over a wide temperature range (up to +125°C).

The LT8391AIUFD#TRPBF integrates a variety of features to improve the efficiency and reduce the system cost and power consumption. These features include an ultra-low input voltage range (down to 1.5V), wide output voltage range (0.7V to 6V), automatically set current limit (resistance programmable) with protection, a programmable phase-lock-loop (PLL) for frequency synchronization, gate drivers up to 25 A/12 V, fast switching time (1 us to 2 ms), auto-disable mode with light load compensation, etc. The device also includes advanced safety features to protect the system from heating, overvoltage, over-current, and short circuit conditions.

The LT8391AIUFD#TRPBF also provides a wide range of built-in advanced protections and complete monitoring functions, including an adjustable current limit, over-voltage protection, over-current protection, thermal protection, short-circuit protection, open-load protection, and automatic disable on open-load conditions. Additionally, the device offers a built-in current sense amplifier, charging LED drive current monitor and LED voltage monitor.

The LT8391AIUFD#TRPBF can be used for various applications including LED driver modules, LED display control modules, LED switching drivers, LED-lighting controllers and others. The device features a high efficiency up to 96%, and operates a direct AC/DC buck converter with wide output currents (up to 25A with 0.7V to 6V output) with low minimum input voltage down to 1.5V.

The LT8391AIUFD#TRPBF is easy to use and easy to integrate with any existing application. It can be used in combination with other components such as resistors, capacitors and inductors, or it can be used as a stand-alone solution for DC/DC buck converter applications. The device also features user-programmable linear and logarithmic current control, depending on the needs and the application.

The LT8391AIUFD#TRPBF features a smart power infrastructure including several power-saving features that can reduce the power consumption of the LED application. This device supports several integrated power-saving features to reduce the ripple and power consumption on the LED channel. It also features a soft-start mode and an auto-shutdown mode to keep the power consumption low. Furthermore, the device has an adjustable output voltage stability (VSH) circuit to provide accurate output voltage with minimum voltage drops during the load transition.

The LT8391AIUFD#TRPBF offers many other features including a high signal to noise ratio, which prevents pulsation feedback to the controller. This reduces the EMI noise and improves the overall performance in high frequency applications. Other features include its low IMAX detection with accurate current control, low switching noise, low ripple, fast over-current support, over-temperature protection, and full diagnostics for diagnosis and monitoring.

The LT8391AIUFD#TRPBF is designed for high performance, low cost, and high reliability applications, such as LED driver modules, LED display control modules, LED switching drivers, LED lighting controllers and others. It is a highly integrated solution that provides advanced features in a single device. It is also suitable for applications in which cost, power consumption and safety are important, such as automotive, consumer electronics and medical applications.

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