WS3240 ProductDescription High Precision PSR LED Constant Current Driver Features  Built-in 650V UHV Power MOS  LED Constant Current: ±5%  Fixed Primary Peak Current: 185mA  Without the Secondary winding  Start up time less than 100ms  High precision constant current regulation due to patented CC control  Built-in line compensation  Ultra low operation current  Maximum power 4W  LED open/short protection  Floating pin protection  Excellent EMI performance with PFM control  Cycle-by-cycle current limit  Built-in leading Edge Blanking  VDD Under Voltage Lockout（UVLO）  Built-in over temperature protection Applications  LED lighting Description WS3240 is a high precision prim...

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