LN2543 Description
The LN2543 is a high voltage buck control IC for constant LED current regulation. The LN2543 operates constant off-time mode. It allow efficient operation of High Brightness (HB) LEDs from voltage sources ranging from 8VDC up to 450VDC or 12VAC~265VAC.
LN2543 Key Features
- Switch mode constroller for single switch LED Drivers
- Open loop peak current controller
- Wide Input range from 8VDC~450VDC or
- Application from a few mA to more than 1A output
- Up to hundreds of LEDs
- Constant off-time operation
- Requires few external ponents for operation
- DC/DC or AC/DC LED driver