• 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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