General Description

QW2886 is a LED driver designed for Emergency

Lighting., The QW2886 employs patent protected

main line detecting methodology to control and

drive the emergency lighting system, without any

peripheral components. The QW2886 can drive an

LED load directly or to enable a boost circuitry,

while the AC input main line could be 85‐265Vac.

QW2886 integrates a precise single lithium‐ion

/polymer battery management functional blocks to

protect the lithium‐ion/polymer battery, including

Over Current Protection, Over Charge Protection,

Over Discharge Protection, Battery Reverse

Protection and Short Circuit Protection.

QW2886 can deliver directly output current.

QW2886 is available in SOP‐8 package.

特性 Features

? Simplified application circuitry

? AC main line detecting directly

? 85‐265Vac

? EN PIN drive LED load directly

? Integrated single lithium‐ion/polymer battery

management and protection

Application

? Emergency lighting

? Stand‐by Lighting