Natlinear LN2542
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.| Part No. | LN2542 |
|---|---|
| Datasheet | LN2542 Download |
| Manufacturer | Natlinear |
| Description | 85~265V AC Input LED Constant Current Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The LN2542 operates constant off-time mode. The LN2542 includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 100% and a frequency of up to a few kilohertz, and the dimming also accept a 0-1.2V linear input signal. The RNTC pin can accept a 0-250mV Line Dimming input witch be used for temperature compensation of the LED current. LN2542 is available by SOP-8 packages.●
APPLICATIONS
● DC/DC or AC/DC LED driver applications● RGB backlighting LED driver
● General purpose constant current source
● Signal and decorative LED lighting
● Typical Application Circuit
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FEATURES
● Switch mode constroller for single switch LED Drivers● Open loop peak current controller
● Wide Input range from 8VDC~450VDC or 110VAC/220AC
● 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 components for operation
● Temperature compensation to...
