LinkSwitch-PL Series LED driver circuit

Power Integrations' DER322 reference design employs the LinkSwitch-PL family of LNK460VG devices. This design represents the industry's first alternative 100W A19 incandescent LED driver utilizing a single-layer PCB. It is characterized by low cost, minimal component count, and compact size, achieving an efficiency greater than 93% at 230VAC, with a power factor exceeding 0.9 and total harmonic distortion (THD) at less than 20%. The integrated package includes protection and reliability features, such as thermal shutdown with automatic recovery. This article outlines the alternative A19 incandescent LinkSwitch-PL family of 5W 15V LED driver circuit diagram.

The DER322 reference design is a significant advancement in LED driver technology, specifically targeting the A19 incandescent bulb replacement market. The LinkSwitch-PL LNK460VG device is central to this design, providing high efficiency and compactness, which are essential for modern lighting applications. The single-layer PCB design not only reduces manufacturing costs but also simplifies assembly, making it an attractive option for manufacturers.

The efficiency rating of over 93% at 230VAC indicates that the design minimizes energy loss, which is crucial for both environmental sustainability and cost-effectiveness in energy consumption. A power factor greater than 0.9 signifies that the driver operates efficiently, reducing wasted energy and improving the overall performance of the lighting system. Additionally, the low total harmonic distortion (THD) of less than 20% ensures that the LED driver does not introduce significant electrical noise into the power supply, which can adversely affect other devices in the circuit.

The inclusion of integrated protection features enhances the reliability of the LED driver. Thermal shutdown with automatic recovery is particularly important in preventing damage to the circuit in the event of overheating, allowing the driver to reset itself once temperatures return to safe levels. This feature contributes to the longevity of the device and ensures consistent performance over time.

Overall, the DER322 reference design exemplifies a modern approach to LED driver solutions, combining efficiency, reliability, and cost-effectiveness in a compact form factor, making it suitable for a wide range of lighting applications. The accompanying circuit diagram provides a detailed representation of the design, showcasing the arrangement of components and their interconnections, which is essential for engineers and designers looking to implement similar solutions in their projects.Powerint's DER322 reference design uses LinkSwitch-PL family LNK460VG devices, the industry's first alternative 100W A19 incandescent LED driver using a single-layer PCB, a low-cost low component count and small size characteristics, efficiency of greater than 93 when 230VAC %, PF greater than 0.9,230 VAC; THD 78 V LED when less than 20%, integrated package protection and reliability features, thermal shutdown automatic recovery. This article describes the alternative A19 incandescent LinkSwitch-PL family of 5W 15V LED driver circuit diagram.