The JW®1756B is a constant current LED driver with high current accuracy which applies to single stage Boost power factor corrected LED drivers.

JW1756B integrates high voltage power source, and can be supplied by line voltage directly, and auxiliary winding is not needed.

High accuracy of output current is achieved by sampling the output current directly. Critical conduction mode operation reduces the switching losses and largely increases the efficiency.  

JW1756B has multi-protection functions which largely enhance the safety and reliability of the system, including VCC over-voltage protection, VCC UVLO, LED open protection and over-temperature protection.