2.5W~5W

S714xS is off-line PWM Controller with integrated power BJT. It uses primary-side control technology to eliminate the opto-isolate feedback and secondary regulation circuits. The accurate secondary constant-current operation is achieved without additional components. It also integrates the high voltage startup circuit and uses self-powered technology to eliminate the auxiliary winding rectifier diode, low-side feedback resister and current sense resister

Internal 850V power  BJT 

 Self-powered without auxiliary supply 

 DOE 6，<75mW No-load input power 

 Internal fixed peak current limit detection without CS resister 

 Internal FB low-side resister 

 Variable cable drop compensation 

 Internal output short circuit protection, OTP