natlinear LN2543
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.| Part No. | LN2543 |
|---|---|
| Datasheet | LN2543 Download |
| Manufacturer | natlinear |
| Description | 85 ~ 265V AC Input LED Constant Current Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The LN2543 operates constant off-time mode. LN2543 is available by SOT23-6 packages.●
APPLICATIONS
●FEATURES
● Switch mode constroller for single switch LED Drivers● Open loop peak current controller
● Wide Input range from 8VDC~450VDC or 12VAC~265VAC
● Application from a few mA to more than 1A output
● Up to hundreds of LEDs
● Constant off-time operation
● Requires few external components for operation
● DC/DC or AC/DC LED driver applications
● RGB backlighting LED driver
● General purpose constant current source
● Signal and decorative LED lighting
● Package
● SOT23-6
● Typical Application Circuit Note： 1、The Rcs depends on the number of LED in parallel. 2、VREF floating。 Rev.1.0 —Sep. 24, 2012 1
● Ordering Information LN2543 ①② Designator ① ② Symbol M R L
DESCRIPTION
Package SOT23-6 Device Orientation Embossed Tape: Standard Feed Embossed Tape: Reverse Feed● Functional Pin
DESCRIPTION
And Marking SOT23-6 (Top View) MARKING LN2543 Pin NO. 2 3 1 5 6 4 Pin Name GND GATE CS TOFF VIN VREF Function Ground.
