AAT3112IVN-5.0-T1

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PMIC - LED Drivers

The AAT3112IVN-5.0-T1 is a LED driver comprised of a LED driver, LED array, and a power management IC. The LED driver is designed to support one or more LED arrays and to provide dynamic current limit and PWM dimming control. The LED array is composed of multiple LED emitters that are connected in parallel to the LED driver. The power management IC includes a precise current regulation circuit and on/off control logic.

The AAT3112IVN-5.0-T1 application field covers a wide range of disciplines, it can be used for automotive applications, commercial and industrial lighting, signage, LCD backlighting and other applications. The AAT3112IVN-5.0-T1 enables designers to create compact, energy efficient and low cost lighting solutions that meet their application needs.

Working Principle

The AAT3112IVN-5.0-T1 operates by switching its inductive current source on and off at a given frequency. A high duty cycle reduces the effective current flowing through the LED array, while a low duty cycle results in higher power dissipation and greater light output. By cycling the duty cycle of the LED array, the LED drivers allow for dimming and tinting of LED arrays.

Step Down Converter

The AAT3112IVN-5.0-T1 includes an integrated step-down converter, allowing designers to easily convert higher voltage input (up to 24V) into a lower voltage output for the LED driver. This makes it possible to deliver the same light output from a smaller power source, improving system reliability and efficiency. The step down converter has an adjustable switching frequency that ensures a smooth dimming effect at all levels.

Integrated Safety Features

The AAT3112IVN-5.0-T1 allows designers to incorporate several system level protection features within the LED driver. This includes overtemperature protection, short circuit protection, and overvoltage protection. Additionally, the integrated surge clamping system (SCS) is designed to protect the LED array from voltage transients.

Input/Output Pins

The AAT3112IVN-5.0-T1 also provides a wide range of interfaces, including: one common IN pin for input voltage, two fault protection pins, a PWM signal pin for external dimming control, and three output pins for connection to the LED array. By using these pins, designers can easily setup up the LED driver for their individual applications.

Summary

The AAT3112IVN-5.0-T1 is a versatile and powerful LED driver that is ideal for automotive, commercial and industrial lighting, signage, LCD backlighting and other applications. It is capable of delivering a wide range of light outputs, depending on the input voltage and duty cycle, while also providing various protection features, and controllable interfaces. The AAT3112IVN-5.0-T1 is an effective solution to meet the lighting needs of any system.

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