The LNK454/456-458/460 LinkSwitch-PL family is a LED driver IC with phase control SCR dimming, single-stage PFC, and precise constant current (CC) output for non-isolated applications.
The manual describes the LinkSwitch‑PL series LED driver ICs (LNK454, LNK456, LNK458, LNK460). It explains the integrated high‑voltage MOSFET, single‑stage power‑factor correction, constant‑current control and optional TRIAC dimming capability.
Detailed sections cover functional block diagrams, pin descriptions, protection mechanisms (overload, over‑voltage, short‑circuit, SOA, thermal shutdown), typical application circuits, and design recommendations for input and output capacitors, transformer design and dimmer interfacing. This manual is written in Chinese.
| Input voltage range | 85‑265 VAC |
|---|---|
| Integrated MOSFET voltage rating | 725 V |
| Available output currents | 350 mA, 500 mA, 700 mA, 1000 mA |
| Output power (LNK454D) | 1.5 W – 3 W |
The device operates from 85 VAC to 265 VAC.
They include short‑circuit, overload, feedback open‑loop, over‑voltage, SOA and thermal shutdown protection.