PSR High Precision Constant Current Controller CL1226



GENERAL DESCRIPTION

           CL1226 is a PSR controller with excellent performance, integrating many types of protection functions. CL1226 works in discontinuous operating mode, suitable for the isolated LED driver with input voltage of 85Vac~265Vac and power dissipation of lower than 5W. The system component count is decreased furthest and the chip is offered in DIP8 package, reducing the space which CL1226 occupied. A high precision current sampling circuit is applied in

           CL1226, the output current accuracy can be within ±3%. Besides, CL1226 has LED open/short protection, over current protection (OCP), VDD under voltage lockout (UVLO), etc.



FEATURES

◆±3% LED Output Current Accuracy

◆PSR Constant Current Control

◆No Auxiliary Sensing/Power Supply Winding required

◆Extremely Low Working Current: 250μA (Typical)

◆Wide Input Voltage Range: 85Vac~265Vac

◆Internal integrated 650V Power MOSFET

◆LED Open/Short Protection

◆Primary Side Over Current Protection

◆VDD Under Voltage Lockout (UVLO)

◆Over Temperature Protection (OTP)



APPLICATIONS

◆GU10 LED Lamp

◆LED Bulk Light

◆Other LED Lighting

CL1226 is offered in DIP8 package




TYPICAL APPLICATIONS



PIN CONFIGURATION


TERMINAL ASSIGNMENTS


CL1226
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