LN2542 Description
The LN2542 is a high voltage buck control IC for constant LED current regulation. The LN2542 operates constant off-time mode. It allow efficient operation of High Brightness (HB) LEDs from voltage sources ranging from 8VDC up to 450VDC or 110VAC/220VAC.
LN2542 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
- Linear and PWM dimming capability
- Requires few external ponents for operation
- Temperature pensation to regulate LED current
- Package