A6276SLW-T

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PMIC – LED Drivers refer to “power management IC”, which provide integrated control, power conversion and regulation capabilities. They are available in a wide variety of packages and configurations, which are typically the ultimate choice to power energy-critical applications. A6276SLW-T is one of the most popular PMIC – LED drivers that provides all kinds of power options for industrial, commercial and residential users.

A6276SLW-T is a high efficiency and advanced, ultrahigh-performance controller developed by ON Semiconductor. It features a high-integrity, high performance 2A constant current sink/source with full system Support, including an enable/disable soft start input and five different dimming modes. It is designed to provide protection against short circuit, over-current, overtemperature and overvoltage condition in an LED application.

In terms of applications, the A6276SLW-T LED Driver is particularly suitable for white LED lighting, especially in areas that require precise control and high efficiency. The device can support single or multiple LED configurations, and owing to its efficient design, reduces size and cost requirements for LED lighting applications. The device offers large dimming range, up to 20X, which allows for a high degree of energy savings with excellent total harmonic distortion (THD) levels. Additionally, A6276SLW-T is compatible with all types of non-isolated power source, such as offline Drv, DC-DC converters, voltage regulators, DC-AC inverters, and AC mains.

In terms of its working principle, the A6276SLW-T LED Driver operates in a closed loop system. The device converts an input voltage into appropriate output current, which can be used to drive a single LED or several LEDs connected in parallel. With a step-down type circuit, the capacitive filter and current sensing resistor are used to filter out noise and accurately control the output current. The device features several dimming modes, including voltage, current, linear and pulse width modulation, that can be used to adjust the brightness of the LED. In addition, the soft-start input pin allows the device to gradually power up the connected LEDs to eliminate the inrush current.

Overall, the A6276SLW-T LED Driver is a power efficient device, designed for high-end LED lighting applications where precise current control and high efficiency are required. It offers several protection options, such as over-current, over-voltage, overtemperature and short circuit protection, which provide excellent device reliability. Additionally, the device supports up to 20X dimming range and is compatible with various power sources, allowing for a wide range of LED lighting applications.

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