Power Integrations LinkSwitch™-PH Series
The Power Integrations LinkSwitch™-PH family of ICs provides cost-effective, high-performance, and energy-efficient solutions for LED lighting applications requiring power factor correction (PFC). These devices integrate a high-voltage power MOSFET, a continuous conduction mode (CCM) PFC controller, and a constant current (CC) output controller into a single package.
LinkSwitch-PH ICs are designed to deliver high power factor (>0.9), low total harmonic distortion (THD), and accurate constant current regulation, ensuring compliance with global energy efficiency standards and optimal performance of LED light engines. They are ideal for a wide range of isolated and non-isolated LED driver applications, including commercial and industrial lighting, street lighting, and high-bay lighting. LiTong Group, as an authorized PI distributor, offers comprehensive support for selecting and implementing LinkSwitch-PH solutions.
The LinkSwitch-PH series simplifies the design of LED drivers by combining multiple functions into a single IC, reducing component count and board space. Its robust protection features and high level of integration contribute to reliable and cost-effective LED lighting designs that meet stringent performance and regulatory requirements.
LiTong FAE Review: "For LED lighting applications that demand high power factor and efficiency without breaking the bank, LinkSwitch-PH is an excellent choice. Its integrated PFC and CC control simplify the design significantly, allowing for compact and reliable drivers. We've seen it perform exceptionally well in commercial lighting fixtures, consistently meeting strict regulatory standards."
LinkSwitch™-PH Series Product Model Table
| Model | Series | Output Power (W) | Topology | Package | Key Features | Datasheet |
|---|---|---|---|---|---|---|
| LNK403EG | LinkSwitch-PH | Up to 15W | Flyback | eSOP-12B | High PF, Low THD, Integrated MOSFET | Download |
| LNK406EG | LinkSwitch-PH | Up to 25W | Flyback | eSOP-12B | High PF, Low THD, Integrated MOSFET | Download |
| LNK410EG | LinkSwitch-PH | Up to 40W | Flyback | eSOP-12B | High PF, Low THD, Integrated MOSFET | Download |
Alternative & Matching Part Numbers
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LinkSwitch™-PH Series FAQs
Q: What is the significance of Power Factor Correction (PFC) in LED drivers?
A: PFC ensures that the LED driver draws current from the AC mains in phase with the voltage, minimizing reactive power and harmonic distortion. This is crucial for meeting regulatory standards and improving overall system efficiency and grid stability.
Q: Can LinkSwitch-PH be used for dimmable LED applications?
A: While LinkSwitch-PH primarily focuses on high PF and CC regulation, external circuitry can be added to enable dimming functionality. For integrated dimming solutions, other PI series like LYTSwitch might be more suitable.
Q: What are the typical applications for LinkSwitch-PH?
A: LinkSwitch-PH is widely used in isolated LED lighting applications such as commercial downlights, streetlights, high-bay lighting, and other fixtures where high power factor, efficiency, and reliability are paramount.