WS3110 Datasheet, PDF (1/8 Pages) Shenzhen Winsemi Microelectronics Co., Ltd – WS3110 High Performance LED Driver

WS3110
WS3110 High Performance LED Driver
Features
■ Fast start-up time
■ Low operation current (0.6mA)
■ PSR control with Single stage PFC topology
■ CC±5%
■ Programmable output current and output voltage
■ Internal Line and Load compensation
■ Internal soft-start
■ Built in Leading edge blanking (LEB)
■ Cycle-by-cycle Over-Current Protection
■ VCC over-voltage protection (VCC-OVP)
■ VCC under voltage lockout (UVLO）
■ Over temperature protection (OTP)
■ Transformer saturation protection
■ Inter power-mos saturation protection
■ Output LED open/short protection
■ CS pin open/short protection
Applications
■ LED lighting
■ Down light
■ Tube lamp
■ PAR lamp
■ Bulb
General Description
WS3110 is a power factor correction，primary-side-control
LED lighting driver with advanced features to provide high
efficiency control for lighting application.
WS3110 applies source driver technology，its internal fast
start-up circuit greatly shorten the start-up time while
keeping extremely low standby power consumption.
With internal line-compensation, the WS3110 provides
accurate constant current (CC ± 5%) regulation at
universal AC input.
WS3110 offers complete protection coverage with
automatic self-recovery feature including cycle by cycle
over current protection (OCP), VCC over-voltage
protection (VCC-OVP) and under voltage lockout (UVLO),
output LED short/open protection, CS pin short/open
protection, and over-temperature protection (OTP). The
gate-driven output ST is clamped to maximum 15V to
protect the external MOSFET. Excellent EMI performance
is achieved by using soft-driver technology.
WS3110 is offered in SOP-8 packages.
Typical Application Circuit
cs
ST
gnd _Source
comp _vcc
mult _ZCD
W/T-S023-Rev.A/2 Mar.2013
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