LM3444 - AC-DC Offline LED Driver
The LM3444 is an adaptive constant off-time AC/DC buck (step-down) constant current controller that provides a constant current for illuminating high power LEDs.
The high-frequency capable architecture allows the use of small external passive components.
A passive PFC circuit ensures good power fact
LM3444 Features
* 1 Application Voltage Range: 80 VAC to 277 VAC
* Capable of Controlling LED Currents Greater than 1 A
* Adjustable Switching Frequency
* Low Quiescent Current
* Adaptive Programmable Off-Time Allows for Constant Ripple Current
* Thermal Shutdown
