QW2889C Datasheet | SincereTek

Emergency Lighting Driver General Description Package Reference QW2889C is a LED driver designed for Emergency Lighting. The QW2889C employs patent protected main line detecting methodology to control and drive the emergency lighting system, without any peripheral ponents. The QW2889C can drive an LED load directly or to enable a boost circuitry, while the AC input main line could be 85-265Vac. With Patented AC main line detection, the N or L line is patible in QW2889C system. QW2889C integrates a precise single lithium-ion /polymer battery management functional blocks to protect the lithiumion/polymer battery, including Over Charge Protection, Over Discharge Protection. QW2889C output current in emergency state could be dimmable according the switch ON/OFF delay time. QW2889C can deliver directly output current. QW2889C is available in SOP-8 package. Applications - Emergency lighting - Stand-by Lighting Features - Simplified application circuitry - AC main line detecting directly - 85-265Vac Input - EN PIN drive LED load directly - Integrated single lithium-ion/polymer management and protection - Dimmable in DC mode - L/N Mixing battery 2021-11 http://.sinceretekmicro. Typical application schematic Emergency Lighting Driver PIN FUNCTIONS Fig1 QW2889C typical application schematic PIN # 1 2 3 4 5 6 7 8 PIN NAME VN NC EN GND BATP VDD NC VL AC main input FUNCTION Output Ground / Battery Negative Battery Positive Charger input AC main...