0.5W non-isolated buck-boost LED driver power supply with LNK302P design, with circuit diagram, bill of materials, specification file

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

Summary:

This document is an engineering report describing a 0.5 W constant current LED driver power supply designed with the LNK302P. This document includes specifications, circuit diagrams, bill of materials, transformer specifications, printed circuit board layout, and performance data.

design feature

• Very few components - only 9 components required
• Wide range input - single design meets global requirements
• Low cost, small size and light weight
• Instead of non-polar capacitors or resistors
• High efficiency (about 70% efficiency at 85 VAC input)
• Meets EN55022 B EMI limits, margin >8 dB

0.5W non-isolated buck-boost LED driver power PCB physical map

0.5W non-isolated buck-boost LED driver power supply circuit diagram

0.5W Non-Isolated Buck-Boost LED Driver Power PCB Layout

0.5W Non-Isolated Buck-Boost LED Driver Power Supply List

See the uploading documentation for details (click to download)