Power Integrations LYTSwitch™ Series
The Power Integrations LYTSwitch™ family of ICs provides highly integrated, single-stage LED driver solutions for a wide range of LED lighting applications. These devices combine a high-voltage power MOSFET with a power supply controller and comprehensive protection features in a single package, simplifying design and reducing component count.
LYTSwitch ICs are designed to deliver high efficiency, excellent power factor correction (PFC), and accurate constant current (CC) regulation, ensuring optimal performance and longevity of LED light engines. With various series like LYTSwitch-0, LYTSwitch-1, LYTSwitch-2, and LYTSwitch-3, Power Integrations offers tailored solutions for different power levels, dimming requirements, and form factors, from simple bulb replacements to sophisticated commercial luminaires. LiTong Group, as an authorized PI distributor, provides comprehensive support for selecting and implementing LYTSwitch solutions.
The LYTSwitch series is particularly valued for its ability to achieve high performance with minimal external components, leading to compact, cost-effective, and reliable LED driver designs that meet stringent energy efficiency and regulatory standards globally. Its integrated features simplify the design process, accelerating time-to-market for innovative LED lighting products.
LiTong FAE Review: "The LYTSwitch series is a fantastic choice for LED lighting designers. Its single-stage architecture simplifies the BOM and design complexity significantly, while still delivering excellent power factor and efficiency. We've seen it used in everything from residential bulbs to high-power streetlights, consistently providing reliable and high-quality light output. The integrated protection features are also a huge plus for product longevity."
LYTSwitch™ Series Product Model Table
| Model | Series | Output Power (W) | Topology | Package | Key Features | Datasheet |
|---|---|---|---|---|---|---|
| LYT0006D | LYTSwitch-0 | Up to 5W | Buck/Buck-Boost | SO-8C | Non-isolated, Low Cost, Simple Design | Download |
| LYT1004D | LYTSwitch-1 | Up to 10W | Buck/Buck-Boost | SO-8C | Non-isolated, High PF, Low THD | Download |
| LYT2004D | LYTSwitch-2 | Up to 15W | Flyback | SO-8C | Isolated, High PF, Low THD, Dimming | Download |
| LYT3004D | LYTSwitch-3 | Up to 25W | Flyback | SO-8C | Isolated, High PF, Low THD, Advanced Dimming | Download |
Alternative & Matching Part Numbers
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LYTSwitch™ Series FAQs
Q: What is single-stage power conversion in LYTSwitch?
A: Single-stage power conversion means that the power factor correction (PFC) and constant current (CC) regulation are achieved in a single power conversion stage, simplifying the circuit, reducing component count, and improving efficiency.
Q: Do LYTSwitch devices support dimming functionality?
A: Yes, many LYTSwitch series devices, particularly LYTSwitch-2 and LYTSwitch-3, offer advanced dimming capabilities, including TRIAC dimming, 0-10V dimming, and digital dimming, making them suitable for various smart lighting applications.
Q: What are the typical applications for LYTSwitch-0 and LYTSwitch-1?
A: LYTSwitch-0 and LYTSwitch-1 are typically used in non-isolated, low-power LED lighting applications such as GU10 bulbs, E14/E27 bulbs, and other cost-sensitive designs where high power factor and efficiency are still required.