LNK418, LNK403 Datasheet - Power Integrations

LNK418 LinkSwitch-PH LED Driver IC

The LinkSwitch™-PH dramatically simplifies implementation of LED drivers requiring long lifetime, high efficiency, PF >0.9, and TRIAC dimming capability (LNK403-410). The single-stage combined power factor and constant-current controller eliminates a switching stage and the electrolytic bulk capacit.

This product is not recommended for new designs. LNK403-410/413-420 LinkSwitch-PH LED Driver IC Family Single-Stage PFC, Primary-Side Constant Current Control and TRIAC Dimming/Non-Dimming Options Product Highlights Dramatically Simplifies Off-line LED Drivers Single-stage combination of power factor correction and accurate constant-current (CC) output Enables very long lifetime designs (no electrolytic capacitors) Eliminates optocoupler and all secondary curren.

LNK418 Features

* Auto-restart for short-circuit protection

* Open circuit fault detection mode

* Automatic thermal shutdown restart with hysteresis

* Meets high voltage creepage requirement between DRAIN and all other signal pins both on PCB and at package Green Package

LNK403_PowerIntegrations.pdf