PI's new LYTSwitch-6 family of safety isolated LED driver ICs delivers 65 W of flicker-free output with up to 94% efficiency and standby power as low as 15 mW with configuration options that support two-stage or single-stage PFCs, Add new options for smart lighting applications.
Solve the challenge of smart lighting power supply
According to the GGII data, the output value of smart lighting in China reached 14.7 billion yuan in 2016, up by 102.8% over 2015. It is estimated that the output value of intelligent lighting in China will reach 28.4 billion yuan by 2017, an increase of 93.2% %. GGII predicts that by 2020 China's smart lighting output value scale will reach as high as 103.5 billion.
The huge market space, coupled with smart home, Internet of Things and other application upgrades, LED intelligent lighting market to attract more recruiters, but as a practitioner in the industry, PI care more about how to solve industry challenges.
Nowadays, the challenges of power supply for smart lighting include: Auxiliary power supply for low power standby, efficient power supply in standby mode, auxiliary power supply needs to be always work, how to ensure that the auxiliary power supply has output when the main output is no load? The PI LYTSwitch-6 positive Effectively solve the power supply challenges facing smart lighting.
Jason Yan, senior technical training manager at PI, said the features and benefits of the LYTSwitch-6 are clear as one of PI's leading products. "The LYTSwitch-6 features ± 3% constant voltage and constant current accuracy to ensure that the LED lighting output Stability; at the same time, its no-load power consumption less than 15 mW (excluding the first-class PF correction circuit) to achieve a real saving energy consumption, while easy to achieve analog and PWM dimming, which is also LYTSwitch-6's excellent place. '
LYTSwitch- 6 IC integrates 650 V or 725 V MOSFET with secondary side FluxLink control, providing optocoupler better than 3% constant voltage and constant current regulation over all input voltages, loads and temperatures . With synchronous rectification and quasi-resonant switching, the power conversion stage with a flyback topology can exceed 94% efficiency and therefore provide high power output without the use of heat sinks. For example, a 35 W (12 V / 2.92 A), the efficiency of which can exceed 89%. The new device always has standby power less than 15 mW at universal AC input, even with input voltage detection circuitry Let the IC provide self-protection when the mains voltage surge and surge.
The LYTSwitch-6 integrates two 650 or 725V MOSFETs to support 308VAC industrial power supplies, providing additional safety margin even in areas with unstable grids. Of course, advanced thermal turn-back protection prevents the IC from over-temperatureing LYTSwitch-6 also meets this requirement, even under conditions of high temperature and under any elevated temperature and operating conditions, with guaranteed lighting conditions.
Reduce design and development costs
Designed for residential and commercial lighting and thin ceiling recessed lamp applications, the LYTSwitch-6 IC's fast dynamic response provides excellent cross-regulation for parallel LED string applications, eliminating the need for an additional secondary regulator. Easy to connect pulse width modulation (PWM) dimming interface.
The LYTSwitch-6 IC supports both constant voltage and constant current control, allowing lighting manufacturers to choose a solution for different design applications resulting in manufacturing and logistics savings. In addition, the LYTSwitch-6 family is available in an InSOP-24 C package.
Hubie Notohamiprodjo, director of marketing for LED lighting products at Power Integrations, said: "The LYTSwitch-6 IC is suitable for intelligent lighting applications with multiple outputs, eliminating the need for heatsinks and optocouplers and drastically reducing the size of the output capacitor by 30% The number of components and system size will also be significantly reduced.
It is understood that, based on the LYTSwitch-6 powerful applicability, a design can be adapted to different applications, that is, it can be applied to the constant current application of a single lamp string, and it is also suitable for the application of constant voltage output characteristics of multi-lamp series and parallel connection (for example, Can change the RGB three-color lighting), thus reducing the design and development costs of manufacturers.
Currently, PI's LYTSwitch-6 is available in mass production for smart home and smart lighting, as well as commercial lighting for spot and ceiling lighting applications up to 65 W and other off-line LED lighting applications.