AAT2860IMK-2A-T1

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The AAT2860IMK-2A-T1 is a non-isolated, monolithic, 3-channel buck-boost converter optimized for driving multi-string, multi-channel LED strings. It is part of a class of power management ICs (PMICs) known as LED Drivers.

The AAT2860IMK-2A-T1 is a highly integrated dc-dc converters that provides a compact, scalable, and low power solution to facilitate driving multiple channel LED strings in series. It is mainly used to drive multi-channel LED strings, such as multiple LED backlight strings in displays, LED signs, LED lighting systems, and LED-based lighting solutions. The device features an output current of up to 1.5A and a maximum continuous output power of 7.5W.

The AAT2860IMK-2A-T1 is designed to operate over a wide input voltage range of 5.5V to 32V. It offers three regulated, programmable outputs with a minimum regulated output current of 0.75A (1.5A for one output). The device operates in a high efficiency buck-boost switching mode, making it ideal for driving variable LED string currents in high Ambient Temperature Operation.

In order to ensure the LED strings are operating correctly, the AAT2860IMK-2A-T1 has a variety of integrated protection features. The device includes an adjustable voltage-based input current limit, an adjustable over-temperature protection, and an output over-voltage protection (OVP) in order to protect against any potential over-lighting conditions. The AAT2860IMK-2A-T1 also includes integrated short-circuit protection, temperature-compensated constant-current regulation, and soft-start protection to reduce the voltage transients in the power system.

The AAT2860IMK-2A-T1 offers a variety of features to improve performance. These include a selectable frequency externally adjustable 1000 kHz to 500 kHz and PWM dimming capability with both frequency-shift and phase-shift dimming. It also includes an adjustable voltage-based input current limit, a low quiescent current, and an integrated charge pump for optional use as an LED string disconnect feature. Additionally, the AAT2860IMK-2A-T1 features a selectable dual-level output voltage for improved power efficiency and maximum power tracking.

The AAT2860IMK-2A-T1 is designed for LED switching applications and features a wide range of features and benefits. Its low quiescent current, programmable current and voltage output, adjustable voltage-based input current limit, and integrated protection features allow for reliable operation and maximum power tracking. The device also offers integrated frequency and phase-shift dimming for improved power efficiency and PWM dimming for improved response time. The AAT2860IMK-2A-T1 provides an ideal solution for any multi-channel LED string application.

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