Product Highlights

? Better than ±5 CC regulation

? TRIAC dimmable to less than 5 output

? Fast start-up

? <250 ms at full brightness

? <1s at 10 brightness

? High power factor >0.9

? Easily meets EN61000-3-2

? Less than 10 THD in optimized designs

? Up to 92 efficient

? 132 kHz switching frequency for small magnetics

High Performance, Combined Driver, Controller, Switch

The LYTSwitch-4 family enables off-line LED drivers with high

power factor which easily meet international requirements for

THD and harmonics. Output current is tightly regulated with

better than ±5 CC tolerance1. Efficiency of up to 92 is easily

achieved in typical applications.

Supports a Wide Selection of TRIAC Dimmers

The LYTSwitch-4 family provides excellent turn-on characteristics

for leading-edge and trailing-edge TRIAC dimming applications.

This results in drivers with a wide dimming range and fast

start-up, even when turning on from a low conduction angle –

large dimming ratio and low “pop-on” current.