Led driver IC with high power factor

The company's voltage step down control technology (single stage) has been designed to provide a high line to ground voltage. In addition, the ability to select low voltage mosfet's (voltage tolerance of only 500 to 300V, rather than the typical 700V) further contributes to lower system cost. The high voltage control and critical conduction mode enable zero current switching at turn on and switching in a low drain source voltage state. As a result, the new driver IC enables reduction of power loss during switching and is said to achieve an industry leading power factor of 92% by reducing the power loss during switching. Critical conduction mode allows power factor correction control using few external components and realises a power factor of 0.9 or higher. A variety of control modes can be achieved by changing the configuration of the externally connected elements. Examples include buck boost, average current, peak current, and constant input power control.