LN2543车灯IC

85~265V AC Input LED Constant Current Driver
■ General 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 is available by SOT23-6 packages.
■ Applications
l DC/DC or AC/DC LED driver applications
l RGB backlighting LED driver
l General purpose constant current source
l Signal and decorative LED lighting
■ Features
l Switch mode constroller for single switch LED Drivers
l Open loop peak current controller
l Wide Input range from 8VDC~450VDC or
12VAC~265VAC
l Application from a few mA to more than 1A output
l Up to hundreds of LEDs
l Constant off-time operation
l Requires few external components for operation
■ Package
l SOT23-6