FT822A-RB

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The FT822A-RB, classified as a PMIC - LED Drivers, are extremely popular in the majority of technological application fields worldwide. It is an integrated driver design with on-chip MOSFETs, dedicated current sensing, and lighting protection that provides features and flexibility with improved efficiency. The FT822A-RB driver has high integration capability and can be used in both constant and dynamic LED loading applications. It has been designed for LED lighting solutions for residential, commercial, signage, and automotive applications.

The FT822A-RB driver allows for universal AC input, wide input voltage range, and constant current output. It offers adjustable output current up to 1A and a choice of 6V or 8V feed-in voltage, which is suitable for most of the LED applications. The FT822A-RB provides a constant output current with accuracy of ±10% and meets many of the industry’s power-efficiency requirements. It also offers protection functions like short-circuit, open-circuit, LED open-circuit, constant-current, and over voltage.

The FT822A-RB driver is built upon proven and reliable integrated technology. It can operate in different modes: constant-current regulation mode, phase dimming mode, and phase angle dimming mode. It is uniquely designed for use in both constant and dynamic LED loading applications. In the constant current regulation mode, the FT822A-RB utilizes the current sensing circuit and the integrated MOSFETs to provide a constant output current, with accuracy of ±10%, along with a wide input voltage range from 100Vac to 277Vac.

In the phase dimming mode, the FT822A-RB utilizes the internal voltage control circuit to automatically adjust the output duty ratio and current level according to the voltage waveform of the input signal. The FT822A-RB is particularly suitable for use in applications that require high power factor and low THD, such as high-end LED lighting. The phase angle dimming mode utilizes the integrated voltage control circuit to adjust the output duty ratio according to the specified phase angle of the voltage waveform. The FT822A-RB is capable of meeting the requirements of some dimming applications, including those that need low power consumption and compact size.

The FT822A-RB driver is designed to provide a wide range of safety and protection functions. It offers a protection circuit to protect the LED loads against short circuit, open circuit, and over voltage. It also has a constant current-limiting feature that enables the driver to automatically adjust the output current to prevent over-loading of the LEDs. The FT822A-RB also offers ESD and surge protection, as well as a thermal shutdown circuit to protect against overheating.

In addition, the FT822A-RB driver design incorporates several features that are intended to improve system reliability, efficiency, and performance. These features include intelligent compatible detection and adjustable current regulation to ensure a consistent output current regardless of fluctuations in input voltage. It also has an auto-restart protection feature to automatically restart the device after a fault has been detected and corrected. Lastly, the FT822A-RB offers a built-in thermal shutdown protection that prevents the over-temperature operation of the driver.

The FT822A-RB driver is ideal for applications that require a high level of flexibility, robustness, and efficiency. Its wide operating temperature range and adjustable output current ensures reliable operation in a range of applications. Additionally, its protection and safety features provide protection against short circuit, open circuit, and over voltage conditions. The FT822A-RB driver’s broad input voltage range and compatibility with different dimming protocols add to its versatility, making it suitable for a variety of LED applications.

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