LED Driver IC for LED Lighting Applications

RenesasElectronics America Inc.'s R2A20134 LED driver IC uses voltage step-down control technology(single-stage) for a high line-to-ground voltage and has the ability to selectlow-voltage MOSFETs with a voltage tolerance of 300 to 500V.

The LED driver IC enables reduction ofpower loss during switching and critical-conduction mode allows power factorcorrection control using few external components and realizes a power factor of0.9 or higher.

A variety of control modes can beachieved by changing the configuration of the externally connected elements.Examples include buck-boost control, average-current control, peak-currentcontrol and constant-input-power control.

Renesas Electronics' R2A20134 LED driver IC also can be employed in TRIAC dimmer applicationsby applying a voltage matched to the TRIAC phase to the feedback pin for constant-current control.

Samples of Renesas Electronics' new LEDdriver IC will be available starting in December 2010,priced at $1 per unit. Mass production is scheduled to begin in March 2011.

LED Driver IC for LED Lighting Applications