Richtek has launched a series of LED lighting driver ICs - RT8454/5/6. Compared with the previously introduced support for direct current (DC) light source solutions, this new series is aimed at AC (AC) input sources such as E27, GU10 bulbs, T5, T8 tubes, street lamps, table lamps, etc. Its main function is two. Constant current control on the secondary side.
The new series can maintain the output current between ±5% within the range of -20~+105°C, allowing the LED to work stably at the highest efficiency and prolong the service life, while avoiding the illumination of the same LED lamp on the market. A big gap.
Among them, the RT8456's small package can put the entire power supply solution into a small light bulb such as E27. According to the type of light fixture, it can be combined with different primary side ICs to effectively improve system efficiency. The RT8455 supports a variety of dimming methods, including Triac Dimming, which are easily compatible with existing systems. The RT8454 also performs constant current control on six strings of LEDs, and can be used in parallel for multiple high-power lamps such as street lamps.
The company said that following the launch of this new series of products, the technology of LED lighting drive has become complete, whether it is DC input light source such as MR16, AR111, car lights, projector lights, etc. or various AC lighting equipment has solutions that allow a wide range of different luminaires to work optimally and become truly energy efficient LED luminaires. (Editor: Xiao Zhou)
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