ACT6311UC-T

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The ACT6311UC-T is a type of PMIC (power management integrated circuit) primarily used as a LED driver. Its primary purpose is to regulate the current and voltage output for LED applications needing additional voltage and current support. The ACT6311UC-T’s application field is mainly used in LED backlighting of notebook computers, LCD monitors, and projectors. The device includes a variety of adjustable functions, allowing any LED current to be set based on the application’s demands.

The working principle of the ACT6311UC-T LED driver is mainly based on its high-performance, high-gain architecture. An oscillator, boost regulator, and a buck converter are the important building blocks of this device. These components are mostly based on PWM (pulse width modulation) architecture, which helps it achieve excellent regulation accuracy and fast response time. It also contains a digital-to-analog converter, allowing it to control analog input signals. The switching controller, within the device, uses the digital-to-analog converter to determine the current and voltage output needed for the LEDs.

Because the ACT6311UC-T utilizes PWM architecture, its output is clean and stable. The driver is adjustable by pulse width modulation, which enables users to control voltage and current output levels. It is designed to operate up to 50kHz and features a range of dimming options, including optical, DC and AC control. Additionally, it is designed to provide a wide output voltage range—from 4 to 44V—making it suitable for a vast range of LEDs.

The ACT6311UC-T is highly efficient, as it includes several power-saving modes. To further enhance its efficiency, the chip includes several devices, such as synchronous rectification, standby energy saving, low noise, and temperature protection. With these additional features, the ACT6311UC-T offers higher energy efficiency and a longer operating life for the LEDs.

The ACT6311UC-T is an ideal LED driver solution for applications that require motorized control, dimmable lighting, or other high-power LED applications. With its integrated PWM architecture, adjustable output functions, and energy saving modes, the ACT6311UC-T can provide a reliable and cost-effective LED driver solution.

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